10+ Top Legacy Application Modernization Companies [November 2024]

Top legacy application modernization companies - shortlist

Here's a list of top companies offering legacy software modernization. These companies have extensive experience in modernizing legacy software, enterprise app development, digital transformation, and custom software development.

• Brainhub
• CSHARK
• DataArt
• Cleveroad
• Diceus
• Taazaa
• Software Mind
• Plavno
• Innovise
• GoodCore Software
• SynapseIndia
• Sonatafy Technology
• Blackthorn Vision
• Jelvix
• Applify
• Uptech

The companies above are sorted by their ability to make quick impact on the project.

In the next section, you'll find the comparison of their delivery practices. This will help you assess each company's culture and choose a vendor that answers your needs in the best possible way. Each characteristic is described so you can assess easily how important it is to you.

Comparison: How they deliver?

<span class="colorbox1" es-test-element="box1"><p>How to use: Review each section and ask yourself, "How important is this quality to me?" Then, analyze the graphs to see which companies prioritize that quality. This will help you choose a company that aligns with your team and can deliver the results you're looking for.</p></span>

Partnership

Why it's important:

• A partner integrated with your team ensures clear communication and aligned goals, driving better results.
• Close collaboration builds trust and transparency, leading to smoother project execution.
• Working together improves efficiency, boosting productivity and outcomes.
• Strong partnerships foster continuity and shared experience, enhancing long-term success and delivering consistent results.

How to recognize such a company?

• They view your success as their own, which is reflected in their commitment to delivering value beyond just the software product.
• Regular meetings and check-ins are scheduled to keep both teams aligned and to address any concerns or changes in direction promptly.
• When issues arise, they collaborate closely with your team to find solutions, demonstrating a problem-solving partnership rather than a transactional relationship.

Ownership

Why it's important:

• Teams with ownership work autonomously. This reduces the need for supervision.
• Trustworthy teams solve problems and learn from mistakes, ensuring progress.
• Teams open to challenges are adaptable and handle unexpected issues well.
• An ownership mentality improves communication and aligns with business goals.
• A sense of ownership drives teams to deliver high-quality, accountable work.

Focus on business - Business-oriented software development

Why it's important:

• Business-savvy vendors align decisions with your broader goals.
• Involving business analysts early ensures alignment and enhances development.
• Open communication between business and development ensures the product meets requirements.
• Efficient knowledge transfer builds a strong foundation for partnership.
• Vendors who challenge your perspective and offer business-driven suggestions show commitment to your success.

Because we act as partners we also notice some things that the client couldn’t notice themselves sometimes. We are able to advise on a small change that can have a huge impact on the business as well. - Agata Szopa, .NET Software Engineer at Brainhub

How to recognize such a software development company?

• The team takes time to understand your business, industry, and challenges before starting.
• They ask detailed questions about goals, audience, competitors, and long-term vision.
• They propose solutions aligned with business objectives, avoiding one-size-fits-all strategies.
• The development team on scalable solutions designed for future growth.
• They discuss ROI and the software's impact on your bottom line.
• The team proactively suggests improvements or alternative approaches to better serve your business needs.

DevOps culture

Why it's important:

• DevOps approach minimizes delays caused by lengthy documentation processes.
• Ensures high standards through continuous collaboration and feedback.
• Accelerates the release cycle, allowing for rapid delivery of business value.
• Facilitates ongoing product enhancements through iterative development.
• Encourages a culture of continuous improvement and innovation.

In the DevOps approach, we, on an ongoing basis, automatically build this infrastructure and CI/CF processes so that we verify whether what we are building deploys easily. If it doesn’t, then we automatically do some fixes to the application. When we build applications, we look at scaling, whether the application will scale in the context of, for example, multiple replicas on servers. If we put this process related to DevOps culture in place, we verify it immediately. As a result, we have immediate feedback, better infrastructure alignment, and better quality applications. - Dariusz Luber, Full-Stack Engineer and Technical Advisor at Brainhub

Top legacy app modernization companies - details

Now, discover the details about each company. Information gathered here contains: services, skills, talents on board, portfolio, client testimonials, technology stack, industry expertise, company size, and price range.

Brainhub

Brainhub stands out as an outstanding provider of software development services, thanks to their impressive technology expertise. Their primary focus is on offering services that accelerate digital growth and enhance team capabilities. Their have high expertise in enterprise app modernization and cloud consulting. They collaborate with a wide variety of companies, including enterprises, startups, scale-ups, and well-established firms.

LEGACY MODERNIZATION EXPERIENCE

Brainhub collaborated with one of the Big Four companies, and they developed and modernized 3 applications for creating tax reports and managing legal entities for them. The project involved dealing with high data security and isolation, migrating to modular monolith and cloud, and implementing multitenancy.

To ensure the creation of high-quality software, Brainhub adopts a methodology that emphasizes quick iteration and thorough testing. This approach enables them to reliably deliver substantial business advantages through their superior software offerings.

AWARDS

• Top Software Developers 2023 by Clutch, 
• FT 1000 Europe’s Fastest-Growing Companies, 
• Rising Star Awards from Deloitte: 50 Technology Fast Central Europe, 
• Top .NET Developers 2023,
• Top 100 Sustained Growth Companies,
• Top 1000 Global Companies by Clutch

SERVICES

• legacy app modernization, 
• enterprise app modernization,
• web application development, 
• mobile app development, 
• UX/UI design, 
• cloud consulting,
• desktop app development, 
• digital product development, 
• staff augmentation, 
• digital transformation, 
• AI software development.

KEY CLIENTS

• National Geographic, 
• Paradox Interactive, 
• PWC,
• Credit Suisse,
• Rulrr,
• Players Plug,
• Gokong,
• Collegial, 
• Beam, 
• TC Global, 
• Jackbox Games, 
• Venture Harbour, 
• Medicover GO

TECHNOLOGIES 

JavaScript, .NET, TypeScript, Node.js, React.js, Electron.js, React Native

TALENTS ON BOARD 

software engineers, QA engineers, software architects, DevOps engineers, business analysts, UX/UI designers

REVIEWS 

4.9/5 stars on Clutch from 45 reviews

Probably any company would benefit from working with Brainhub, but if you have more complex issues like dealing with technical debt or have some big challenges you want to tackle but don’t really know how, I would definitely think of Brainhub for that. - Juliana Alonso, Web Producer, Star Stable

SKILLS 

product scaling, software development, customized software, GraphQL, Kubernetes, AWS, Azure, GCP, DevOps, workshops, hybrid mobile app development, iOS application development, Android application development, PWAs, CI/CD, automated tests, BDD, TDD, backend engineering, API development, serverless architecture, testing, UX design, UI design, UX audit, UX workshops, product workshops, architecture development, API development, MVP development, prototyping, legacy architecture, legacy infrastructure, application modernization solutions

WHAT CUSTOMERS VALUE: 

• technical know-how, 
• the clarity and dependability of the code, 
• a can-do attitude, 
• project management abilities, 
• openness, 
• flexibility, 
• engagement, 
• dedication.

I think that the values of Brainhub are innovation, quality, and professionalism. I truly appreciate our team because it’s very involved with the business aspect. They're giving us points of view that we haven’t seen before. This is a huge part of creating a great product. - Aviv Abecasis, CEO, Rulrr

METHODOLOGY: Agile methodology

COMPANY SIZE: 100+

LOCATION: Poland

PRICE RANGE: $50 - $99 / hr

CULTURE & VALUES: 

• initiative and taking full responsibility, 
• good communication  (essential to problem-solving)
• the importance of making educated decisions
• collaboration, 
• constant improvement, 
• knowledge exchange.

INDUSTRY EXPERIENCE: 

• FinTech, 
• EdTech, 
• MedTech, 
• Insurance,
• Banking,
• Gaming.

<span class="colorbox1" fs-test-element="box1"><p>Contact Brainhub to consult your software development project</p></span>

‍

<h3 id="cshark">CSHARK</h3>

CSHARK is one of the application modernization companies that specializes in creating digital products that resonate with users. They offer a comprehensive range of services including end-to-end software development, product design, MVP development, and software development outsourcing. CSHARK is known for its expertise in FinTech software development and .NET development, showcasing their ability to deliver tailored solutions that help businesses and startups excel in the fast-paced digital world.

AWARDS

• Featured in the FT1000 2022 Ranking by Financial Times as one of the fastest-growing companies in Europe.

SERVICES

• Custom software development
• UX/UI design
• Mobile app development
• Enterprise app modernization
• Legacy application modernization services

SKILLS

Software development, product design, MVP development, cloud infrastructure, user-centric design, data integrations, mobile apps, web apps, legacy architecture, legacy infrastructure, legacy systems, digital transformation

TECH STACK

.NET, C#, Go

PORTFOLIO

• Pastdue Credit Solutions
• Arup
• LAUDO Designagentur
• Woodpecker.co
• The Unsigned Library Limited
• Zortrax S.A.

CULTURE

• transparency, 
• quality, 
• innovation,
• quick and efficient response to changes and challenges,
• building long-term relationships.

TEAM SIZE

250+

REVIEWS

Clutch Rank: 4.9/5 based on 19 reviews

The most impressive thing about CSHARK is their ability to react quickly and efficiently. - Samuel Gilliéron, Software Architect, regenHU Ltd., source: Clutch

WHAT CLIENTS LOVE

• skilled software team, 
• high-quality code, 
• thoroughness, 
• responsiveness, 
• ability to deliver on time, 
• flexibility, 
• and the team's supportive nature throughout the development process,
• delivering innovative solutions.

LOCATION

Headquarters: Poland

Other locations: UK

PRICE RANGE

$50 - $99 / hr

INDUSTRY EXPERTISE

• financial services, 
• engineering, 
• business services,
• medical,
• entertainment & music.

<h3 id="dataart">DataArt</h3>

DataArt is a global software engineering firm established in 1997, focusing on designing and engineering data-driven, cloud-native solutions to deliver immediate and enduring business value. They prioritize a people-first principle, with a world-class team committed to creating dynamic digital transformations. DataArt operates 20+ domain-specific Labs dedicated to research and development and strategic innovation, partnering with clients to ensure they remain at the forefront of technology.

AWARDS

• Gartner® Magic Quadrant™ 2023 for Custom Software Development Services, Worldwide (Honorable Mention)
• Gartner® Hype Cycle™ for Life Science Clinical Development, 2023
• Newsweek’s List of the Top 100 Global Most Loved Workplaces
• Financial Times’ List of the Americas’ Fastest-Growing Companies
• Inc. 5000 Fastest-Growing Private Companies List (Named 12 Times)

SERVICES

• Custom software development
• AI development
• E-commerce development
• Cloud consulting & SI
• IoT development
• Legacy app modernization
• Enterprise app modernization

SKILLS

Project management, software development, AI and Machine Learning, E-commerce solutions, Cloud migration and consulting, IoT solutions, data migration, User Experience design, User Interface design, data consulting, legacy software modernization, digital transformation, transforming legacy systems

TECH STACK

C#, Java, JavaScript, Python, SQL, C++, PHP, Ruby, Node.js, React.js, Ruby on Rails, Vue.js

PORTFOLIO

• Rappi
• Metro Markets
• Global Crossing Airlines, Inc.
• Aula
• Pharos Data
• Doddle

CULTURE

• people-first approach, 
• fostering a culture of teamwork,
• innovation, 
• commitment to quality
• supportive and dynamic work environment.

TEAM SIZE

1,000 - 9,999 employees

REVIEWS

Clutch Rank: 4.9/5 from 26 reviews

The team excels at project management, conducting seamless and transparent processes. - Joel Spiro, Head of Product for Travel Vertical, Rappi, source: Clutch

WHAT CLIENTS LOVE

• Guaranteed quality of work
• Impressive project management and transparent processes
• Strong technical capabilities and expertise
• Ability to solve problems in challenging times
• Flexibility in terms of changing requirements and priorities
• Organized process and high-caliber work delivery
• Effective communication and ability to quickly adapt to company culture

LOCATION

Headquarters: USA

Other locations: UK, Germany

PRICE RANGE

$50 - $99 / hr

INDUSTRY EXPERTISE

• Finance
• Travel tech solutions
• Media & entertainment
• Healthcare & life sciences
• Retail & distribution
• Education

<h3 id="cleveroad">Cleveroad</h3>

Cleveroad is a custom app development company with a focus on creating tailored software solutions for businesses. They emphasize innovation, transparency, and guaranteed product delivery, covering the full cycle of web and mobile application development. With a strong commitment to their clients' technical success, Cleveroad offers a range of services including dedicated development teams, end-to-end software development, PoC/MVP development, and legacy software modernization.

SERVICES

• iOS App Development
• Android App Development
• Flutter App Development
• Web Development
• UI/UX Design
• Quality Assurance
• DevOps Services
• Legacy application modernization

SKILLS

native mobile and web development, microservices, cloud solutions, AI/data science, Machine Learning, industrial IoT, augmented reality, cross-platform solutions, cloud migration, facilitating seamless transitions, innovative solutions, legacy systems

TECH STACK

Node JS, Typescript, .NET, Python, Java, Ruby, React, Angular, Vue JS, Flutter, React Native, Kotlin, Swift

PORTFOLIO

• Fenergo 
• REGENHU 
• VecCtor 
• HTP J-1 Visa Programs
• Nudge 

CULTURE

• close collaboration
• personalized approach to solving technical problems
• dedicated to their work 
• aim to provide innovative solutions 

TEAM SIZE

50+

REVIEWS

Clutch Rank: 4.9 out of 66 reviews

I greatly appreciated Cleveroad's commitment to well-established processes. - Director of Engineering, Digital Healthcare Solutions Co, source: Clutch

WHAT CLIENTS LOVE

• Precision in meeting deadlines
• High-quality code and product delivery
• Effective communication and flexibility
• Proactive approach and valuable suggestions
• Organized and efficient project management

LOCATION

Headquarters: Estonia

Other locations: USA (Claymont, DE), Norway (Oslo), Ukraine (Dnipro)

PRICE RANGE

$25 - $49 / hr

INDUSTRY EXPERTISE

• Healthcare
• Supply Chain
• Finance
• Marketplaces, 
• Media, 
• Retail, 
• Travel, 
• Social, 
• Education.

<h3 id="diceus">Diceus</h3>

Diceus is a custom software development company that has been assisting enterprises in building software since 2011. They focus on delivering high-quality code and ensuring projects are delivered on scope by leveraging a proven development flow. Their services extend beyond just software engineering to include system integration, modernization, and optimization. With over 250 professionals on board, Diceus prides itself on teamwork and delivering value to businesses through certified developers, test engineers, and business analysts.

SERVICES

• Custom software development
• Mobile app development
• Enterprise mobile app development
• Software architecture design
• Legacy app modernization services
• System integration services
• Data migration services
• Web app development
• Web portal development
• Website development
• IT staff augmentation

SKILLS

Mobile apps, enterprise solutions, software architecture design, legacy application modernization, system integration, data migration, web development, web apps, website, UI/UX design, Cloud, BI & Big Data, IT strategy, cybersecurity, penetration testing, AWS integration, cloud computing, legacy systems, modern technologies

TECH STACK

.NET, Java, Python, Flutter, React Native, Kotlin, JavaScript, Vue.js, C#

PORTFOLIO

• UNIQA Ukraine
• Willis Towers Watson
• Fadata
• Bank al Etihad
• Raiffeisen Bank
• BriteCore
• Insider
• Palmers
• Bridgestone
• Verisense

CULTURE

• collaboration,
• professionalism, 
• passionate about their work,
• committed to delivering results and values,
• clear communication,
• operational efficiency,
• dealing with unique business challenges,
• customer-centric approach.

TEAM SIZE

250+ full-time tech professionals.

REVIEWS

Clutch Rank: 4.9/5 from 47 reviews

WHAT CLIENTS LOVE

• Timely execution of all project stages
• Depth of UX analysis and market research
• Professionalism and efficiency
• Clear communication and workflow
• Expertise in technical and business requirements

LOCATION

Headquarter: Poland

Other locations: Ukraine, Denmark, Austria

PRICE RANGE

$25 - $49 / hr

INDUSTRY EXPERTISE

• Telecommunications
• Financial Services
• Nonprofit
• Software
• IT Services
• Gaming

<h3 id="taazaa">Taazaa</h3>

Taazaa is a custom software development company founded in 2007, focusing on reducing human suffering through innovative and progressive solutions. They serve a wide range of clients, from startups to SMBs and Fortune 500 companies, as a trusted technology partner. Taazaa emphasizes high-empathy design and an iterative approach to development, ensuring solutions that are secure, high-quality, and propel businesses forward. Their agile, low-friction development process is designed to reduce risk and deliver rapid, tightly integrated solutions to meet business needs.

SERVICES

• Custom software development
• Mobile app development
• Enterprise app modernization services
• UX/UI design
• Web development

SKILLS

cross-platform mobile apps, native mobile apps, Progressive Web Apps, Artificial Intelligence, Machine Learning, NLP, IoT, Cloud, legacy apps, outdated software, modern infrastructure, digital growth, UX design, UI design, modernizing existing systems

TECH STACK

React Native, Node.js, .NET, MongoDB, Express.js, Swift, Objective-C, Java, Kotlin, Xamarin, Flutter, React, Angular, Vue

PORTFOLIO

• PulseBox, 
• Caring24, 
• Malley’s Chocolates, 
• Lachina, 
• Open i Networks, 
• Vorrei, 
• Wright Partners

CULTURE

• innovation, empathy, agility. 
• prioritize understanding client needs deeply
• rapid delivery 
• high-quality solutions
• committed to reducing human suffering through software
• focus on impactful and meaningful work

TEAM SIZE

50+

REVIEWS

Clutch Rank: 5.0 average review rating from 27 reviews.

WHAT CLIENTS LOVE

• Professionalism,
• timely responsiveness, 
• ability to deliver high-quality work on time,
• effective communication despite timezone differences, 
• realistic timelines, 
• customer-focused approach,
• hard-working and capable team, 
• transparency, 
• the ability to integrate as part of the client's internal team.

LOCATION

Headquarters: USA

Other locations: India

PRICE RANGE

$50 - $99 / hr

INDUSTRY EXPERTISE

• healthcare, 
• transportation, 
• logistics, 
• proptech/real estate, 
• edtech.

<h3 id="software_mind">Software Mind</h3>

Software Mind is a global software house with R&D centers across Central Europe and South America. Established in 1999, they specialize in providing experienced software developers to assist partners in achieving their goals through digitalization, accelerating IT development processes, building new solutions from scratch, and creating remote delivery centers. Their approach is focused on leveraging technology to empower people, driving business growth and digital transformations.

SERVICES

• Custom software development services
• Enterprise application modernization services
• Legacy application modernization services
• AI development
• Mobile app development
• BI & Big Data consulting & SI

SKILLS

Artificial Intelligence, mobile app development, enterprise application modernization, BI & Big Data, transforming legacy systems, digital transformation, cutting-edge technologies, Machine Learning, enterprise systems, enterprise infrastructure

TECH STACK

.NET, C#, JavaScript, Angular, PHP, Go

PORTFOLIO

• Mortgage Advice Bureau
• CSL
• Branch
• Baillie Gifford & Co
• Efficio Limited

CULTURE

• close cooperation, 
• responsiveness, 
• supportive environment
• transparent communication 
• integration of their teams with clients' operations

TEAM SIZE

1,000+

REVIEWS

Clutch Rank: 4.9 out of 5 from 40 reviews

WHAT CLIENTS LOVE

• High-quality code and passionate developers
• Fast sourcing and smooth onboarding process
• Effective collaboration and communication
• Professionalism and expertise in complex environments
• Ability to deliver quickly and meet expectations

LOCATION

Headquarters: Poland

Other locations: Romania, Moldova, Argentina, Brazil, and Uruguay.

PRICE RANGE

$50 - $99 / hr

INDUSTRY EXPERTISE

• Financial services
• Telecom
• Software and IT services
• Gambling
• Business services
• Food & beverages
• Telecommunications

<h3 id="plavno">Plavno</h3>

Plavno is a premier software development company that specializes in leveraging AI technology to transform businesses. With a team of over 100 specialists, they have over 16 years of experience and have delivered more than 260 projects. Plavno offers a comprehensive range of services, from product management and analysis to design, development, testing, and ongoing support. They focus on creating software that enhances human potential, particularly in healthcare, ensuring technology empowers people in care delivery and improves patient experiences.

SERVICES

• Mobile app development
• Legacy modernization services
• Web development
• AI development
• Blockchain
• E-commerce development
• Enterprise app modernization services

SKILLS

Project management, Agile methodology, A/B Testing, CAC, ROI, CLTV, CJM, Cohort, UX Design, DevOps, back-end development, front-end development, GraphQL, Next.js, Webpack, Docker, JQuery, CSS3, HTML5, WordPress, Symfony, legacy infrastructure, application modernization solutions

TECH STACK

TypeScript, React, Node.js, Express, Laravel, Golang, Python, Java, PHP

PORTFOLIO

• RNDpoint
• Arcade Food Hall
• Kroger
• Meal Box
• Ultimate Products
• Simplifa

CULTURE

• collaboration and excellence, 
• using the SAFe methodology to ensure teamwork and maintain high standards 
• open and honest communication

TEAM SIZE

50 - 249 employees.

REVIEWS

Clutch Rank: 5.0 average review rating from 44 reviews.

WHAT CLIENTS LOVE

• technical expertise, 
• ability to deliver on time, 
• clear understanding of end-user needs, 
• exceptional project management skills, 
• financial responsibility, 
• client-oriented approach.

LOCATION

Headquarters: Poland

Other Locations: The Republic of Kazakhstan, London, United Kingdom

PRICE RANGE

$25 - $49 / hr.

INDUSTRY EXPERTISE

• Information Technology
• Restaurants
• Retail
• Food & beverages
• eCommerce
• Real Estate
• Financial services
• Education

<h3 id="innovise">Innovise</h3>

Innowise is an international full-cycle software modernization company established in 2007. With over 1400 IT professionals, they specialize in developing software for clients worldwide, boasting a portfolio of more than 850 projects. Their services range from software engineering & development to IT consulting & advisory, covering various industries and technological domains.

SERVICES

• Software engineering & development
• IT consulting & advisory
• Web development
• Mobile development
• Embedded software development
• Custom software development
• Cloud development
• Database administration
• Legacy modernization
• UI/UX design
• Software testing and QA
• IT staff augmentation

SKILLS

GCP, SAP, Salesforce, Odoo, DevOps, UX design, UI design, Quality Assurance, Cloud, mobile apps, web apps, business analysis, AWS, Azure

TECH STACK

React, Angular, Vue.js, JavaScript, Java, .NET, Python, PHP, Node.js, Flutter, React Native, Xamarin, .NET MAUI, Kotlin, Swift

PORTFOLIO

• BMW
• N:aip
• OneStop Pro
• Definely
• Tieto
• CoreLedger

CULTURE

• community of high-grade engineers 
• focused on changing the world through digital innovation
• collaboration, 
• leveraging skills, knowledge, and experience to help clients achieve success and contribute to making the world a better place.

TEAM SIZE

1400+ IT professionals

REVIEWS

Clutch rank: 4.9/5 from 56 reviews

WHAT CLIENTS LOVE

• Top-notch quality
• Effective communication
• Quick response and issue resolution
• Ability to structure projects clearly
• Highly skilled and hand-picked engineers
• Attention to detail

LOCATION

Headquarters: Poland

Other locations: Belgium, Spain, Greece, Portugal

PRICE RANGE

$50 - $99 / hr, with project costs typically ranging from $10,000 to $49,000.

INDUSTRY EXPERTISE

• Healthcare & life sciences
• Finance
• Banking
• Insurance
• eCommerce & retail
• Education
• Telecommunications
• Travel
• Media & entertainment
• Real estate

<h3 id="goodcore_software">GoodCore Software</h3>

GoodCore Software is a full-service software development company based in London, UK, with over 18 years of experience. They specialize in providing end-to-end bespoke software development support, from ideation to delivery, aiming to enhance business efficiency, disrupt markets, and drive end-user adoption. They also offer development team augmentation, digital transformation strategies, and software project takeover services, focusing on empowering companies with skilled engineering talent for executing digital transformation and product development strategies affordably and seamlessly.

SERVICES

• Custom software development
• IT staff augmentation
• Enterprise app modernization
• Web development

SKILLS

Project management, UI/UX consulting, tech advisory, software development, web app development, mobile app development, web portal development, MVP development, desktop development, product development, support & maintenance, API development & system integration, QA & testing services, UI/UX design, iOS app development, Android app development, cross-platform apps, Microsoft Azure, Google Cloud Platform, legacy architecture

TECH STACK

Node.js, PHP, .NET, Java, React, Vue.js, Angular

PORTFOLIO

• CardiaTec Biosciences
• Bid Writing Consultancy
• HealthTech Startup
• GP UK Support Services LTD
• Higher Education Software Company
• HireVine

CULTURE

• transparency, organization,
• active engagement from their management team,
• team alignment, 
• effective communication.

TEAM SIZE

50 - 249 employees

REVIEWS

Clutch Rank: 5.0 average review rating from 29 reviews

WHAT CLIENTS LOVE

• High responsiveness
• Excellent project management and delivery on time
• Technical expertise and ability to understand client needs
• Transparency and organization in processes
• Professional and effective communication

LOCATION

Headquarters: UK

Other Locations: Pakistan, Malaysia

PRICE RANGE

$25 - $49 / hr

INDUSTRY EXPERTISE

• Biotechnology
• Consulting
• Healthcare
• Software
• Human Resources
• Advertising & marketing

<h3 id="synapseindia">SynapseIndia</h3>

Synapse India is a prominent IT outsourcing company based in India, established in 2000. It specializes in custom software development services, catering to a diverse clientele that includes startups, SMEs, and enterprise-level companies. With a large team of over 300 professionals and four state-of-the-art development centers in India and the USA, Synapse India has successfully delivered over 10,000 projects. The company is known for its expertise in e-commerce solutions and business applications.

SERVICES

• Software development
• Website development
• Mobile app development
• E-commerce solutions
• Cloud solutions
• CRM solutions
• CMS solutions
• AI/ML
• Game development
• Legacy system modernization

SKILLS

MySQL, Laravel, Django, blockchain, IoT, cloud computing, Swift, Kotlin, React Native, Xamarin, Flutter, CSS3, HTML5, JavaScript, responsive design, Salesforce, Zoho, HubSpot, Microsoft Dynamics, WordPress, Drupal, Joomla, Magento, Unity, Unreal Engine, serverless architecture, Kubernetes, AWS Lambda, legacy infrastructure

TECH STACK

.NET, Java, PHP, Python, Ruby, ReactJS, AngularJS, NodeJS, Vue.js

PORTFOLIO

• Steve Madden
• Mi Casa Verde
• Can Can Lingerie
• Retrobrand
• Ontronics
• Real Africa

CULTURE

• culture of innovation
• team dedicated to addressing clients' opportunities
• trust, respect 
• aiming to empower businesses to function intelligently and transform ideas into reality

TEAM SIZE

250+

REVIEWS

Clutch Rank: 4.8/5 from 32 reviews

WHAT CLIENTS LOVE

• Responsive project management
• Effective communication
• High-quality deliverables
• Creative solutions and ideas
• Professionalism and expertise
• Ability to meet deadlines
• Customer-focused approach

LOCATION

Headquarters: Noida, India

PRICE RANGE

$25 - $49 / hr

INDUSTRY EXPERTISE

• Education
• eCommerce
• Financial services
• Hospitality & leisure
• Manufacturing
• Medical

<h3 id="sonatafy_technology">Sonatafy Technology</h3>

Sonatafy Technology is a Nearshore Software Development company that specializes in providing tailored solutions by assembling specialized teams of engineers to meet clients' goals. They focus on delivering award-winning, customized software development services, emphasizing the importance of professional-level English proficiency, time zone alignment, and technical compatibility. The company caters to leading brands and innovative startups, offering a comprehensive range of services from full-stack development to QA and UI/UX design.

AWARDS

• Inc. 5000 Power Partner Award

SERVICES

• Custom software development
• Enterprise app modernization
• Mobile app development
• Application testing
• IT strategy consulting
• Web development

SKILLS

Software development, full stack development, back-end development, DevOps, database management, front-end development, mobile apps development, QA, UI/UX design, Azure, Kuberneter, MySQL, HTML, design, application modernization solutions

TECH STACK

Kotlin, .Net, Java, Golang, Django, Node JS, React Native, Flutter, JavaScript, Objective C, Xamarin, Swift, C#, C++

PORTFOLIO

• TaylorMade Golf, 
• Caterpillar, 
• MobiTV, 
• IBM, 
• Cisco, 
• Fox, 
• AKIDO, 
• CoachLogix, 
• Semantic Research, 
• Buzztime, 
• Calsense

CULTURE

• expert talent acquisition, 
• fully immersive approach to understanding and achieving software development objectives, 
• fostering a collaborative and communicative environment.

TEAM SIZE

50 - 249 employees

REVIEWS

Clutch Rank: 4.8/5 from 20 reviews

WHAT CLIENTS LOVE

• Quick delivery of quality results
• Strong communication skills
• Seamless integration with client workflows
• Highly specialized and talented resources
• Cost-effective solutions

LOCATION

Headquarters: United States

Other locations: Mexico

PRICE RANGE

$50 - $99 per hour

INDUSTRY EXPERTISE

• SaaS, 
• healthcare, 
• life-sciences, 
• clinical industries,
• IT,
• medical,
• business services.

<h3 id="blackthorn_vision">Blackthorn Vision</h3>

Blackthorn Vision is a custom software development company that focuses on scaling tech teams, delivering projects on time and within budget, and covering all stages from the initial concept to the final product. They are committed to driving real business value for their clients through software solutions that make a difference. With a passion for excellence and client success, they leverage their technical expertise to exceed expectations, whether building ideas from scratch or scaling engineering teams.

SERVICES

• Custom software development
• Enterprise app modernization
• IT managed services
• Web development

SKILLS

Desktop development, product discovery, API development & integrations, legacy app modernization, software audit, solution consulting, cloud migration & optimization, software re-engineering & re-architecting, UI/UX redesign, cloud-native development, SaaS app development, enterprise application development, cloud security, DevOps, Machine learning, AI, front-end development, back-end development, mobile app modernization

TECH STACK

C#, Java, PHP, React, .NET, Go

PORTFOLIO

• Sensia
• unTill
• Selux Diagnostics
• Remipeople
• ANC

CULTURE

• culture of professionalism, dedication, and commitment 
• ability to adapt and address challenging situations 
• collaborative and communicative work environment

TEAM SIZE

50 - 249 employees

REVIEWS

Clutch Rank: 4.8 average review rating from 22 reviews

WHAT CLIENTS LOVE

• Professionalism and dedication
• Ability to deliver on time and meet expectations
• Flexibility and accommodation
• High level of communication and project management
• Technical proficiency and quality of work

LOCATION

Headquarters: Ukraine

Other Locations: Poland

PRICE RANGE

$25 - $49 / hr

INDUSTRY EXPERTISE

• Biotechnology
• Software
• Logistics & supply chain
• IT services
• Chemicals & biotechnology

<h3 id="jelvix">Jelvix</h3>

Jelvix is a global technology partner specializing in software development, helping businesses across various industries to digitally transform and innovate. With over a decade of experience, Jelvix offers a comprehensive range of services, including enterprise software development, IT consulting, and software integration. They are recognized for their expertise in healthcare, real estate, financial services, and investment companies, providing custom software solutions that set their clients apart from the competition.

AWARDS

• ISO 9001:2015 for quality management systems
• ISO 13485:2016 for the production of medical devices

SERVICES

• Enterprise software development
• Mobile app development
• QA and testing
• Technical support
• IT consulting
• CTO as a Service
• DevOps consulting
• SaaS development

SKILLS

Digital transformation, Big Data, Internet Of Things, AR/VR, UI/UX design, enterprise engineering, quality management, DevOps, Cloud, Quality Assurance, iOS app development, Android app development

TECH STACK

Java, .NET, Python, PHP, Ruby, Javascript

PORTFOLIO

• Tiber Capital
• AR Company
• Financial Media Company
• Nexus Digital Technology
• FanVant, Inc.

CULTURE

• family-like atmosphere rather than a corporate feel, 
• emphasizing professional and personable interactions,
• dedication to delivering high-quality software,
• effective communication and collaboration.

TEAM SIZE

50 - 249 employees

REVIEWS

Clutch Rank: 4.9/5 from 22 reviews

WHAT CLIENTS LOVE

• High-quality software products
• Effective project management
• Professional and personable team
• Strong dedication to project success
• Solution-oriented approach
• Ability to deliver within deadlines and on budget
• Extensive range of technical skills

LOCATION

Headquarters: Estonia

Other locations: Ukraine

PRICE RANGE

$50 - $99 / hr

INDUSTRY EXPERTISE

• Healthcare
• Real estate
• Financial services
• Retail
• Media

<h3 id="applify">Applify</h3>

Applify is a tech company that specializes in leveraging AWS Cloud to help businesses migrate and modernize their applications. Recognized for their design excellence and tech expertise, they have been acknowledged as one of the top app development companies. They offer extensive expertise in legacy systems and cutting edge technologies. Applify empowers businesses worldwide by creating software solutions, cloud-native apps, mobile apps, and other digitally connected platforms, aiming to transform brands into stronger entities in the digital space.

AWARDS

Recognized by DesignRush as one of the top app development companies.

SERVICES

• Custom software development
• Cloud consulting & SI
• Mobile app development
• AI development
• Enterprise app modernization
• IT strategy consulting

SKILLS

Cloud, AWS, application modernization, mobile apps, UX design, UI design, Artificial Intelligence, Generative AI, IT strategy

TECH STACK

JavaScript, Node.js, Flutter, Angular, Django, React.js, .NET, Java, PHP, Go, C#, Kotlin, Python, C++, Swift, Ruby, SQL

PORTFOLIO

• BharatPe
• Flipkart
• Cashify
• Workrise
• The Golf Revolution

CULTURE

• innovation, collaboration, and excellence
• commitment to client satisfaction 
• delivering top-notch digital products

TEAM SIZE

100+

REVIEWS

Clutch Rank: 5.0 average review rating from 32 reviews

WHAT CLIENTS LOVE

• Quality work and understanding of business needs
• Efficient and timely delivery without sacrificing quality
• Knowledge, expertise, and dedication to projects
• Professionalism and commitment

LOCATION

India

PRICE RANGE

$25 - $49

INDUSTRY EXPERTISE

• Business services
• Sports
• Gaming
• Advertising & marketing
• Hospitality & leisure
• Consumer products
• Arts, entertainment & music

<h3 id="uptech">Uptech</h3>

Uptech is an international mobile and web development company that transforms ideas into full-fledged products. With a focus on creativity, domain expertise, and a product development approach, Uptech is dedicated to delivering products that resonate with users and businesses alike. They pride themselves on being a software development team with a product mindset, offering all the necessary expertise to bring bold ideas to the market.

AWARDS

• Top App Mobile Developer
• Top B2B Company in 2020-2022
• Top Service Provider for 2021

SERVICES

• UX/UI design
• Mobile development
• Web development

SKILLS

Product development, mobile app development, web development, UX/UI design, discovery workshops, software product development, AI development, enterprise app modernization, custom software development

TECH STACK

Node.js, React.js, React Native, Django, JavaScript, Swift, Java, Kotlin

PORTFOLIO

• Dollar Shave Club
• Nomad
• Aspiration
• GOAT
• EaTable

CULTURE

• passion, 
• transparency, 
• commitment to reaching the root of every challenge,
• self-management, 
• personal growth, 
• social responsibility.

TEAM SIZE

100+

REVIEWS

Clutch Rank: 4.9/5 from 40 reviews

WHAT CLIENTS LOVE

• Timely delivery and meeting budget expectations
• Collaborative and transparent project management
• High-quality deliverables and technical skills
• Responsiveness to feedback and effective communication
• Organized and experienced team with innovative ideas

LOCATION

Headquarters: USA

Other Locations: Poland, Estonia, Cyprus, Ukraine

PRICE RANGE

$25 - $49 / hr

INDUSTRY EXPERTISE

• Fintech
• Healthcare
• Ecommerce
• Social Media
• PropTech
• Food Delivery

How was this list compiled?

The companies featured in this list have been carefully selected based on certain criteria that validate their credibility and reputation:

• They boast a significant number of favorable client testimonials, with at least 30 reviews on platforms like Clutch, and several have garnered over 50 reviews in total.
• These firms achieve an average rating of 4.8 or above on Clutch, showcasing consistent client satisfaction.
• There is no solely negative feedback about these companies on Clutch, highlighting their commendable track record.
• The featured companies have been active in the industry for a minimum of five years, showcasing their extensive software development expertise through their comprehensive portfolios.
• They are staffed by proficient teams that are adept at crafting scalable, custom software solutions.
• Based on their previous projects, these companies demonstrate strong engagement, initiative, ownership, and a focus on solving problems.
• They foster an Agile work environment, which allows for flexibility and swift adaptation to changes.
• By offering cross-functional teams that include a range of specialists, these firms are committed to enhancing their clients' business performance.
• It is crucial to mention that this list does not contain any paid placements. The companies have genuinely earned high ratings through detailed research and evaluations conducted by actual people, not just algorithmic calculations.
• The data used to compile this list comes from an in-depth review of the companies' online presence, including their websites, rankings on various portals, client reviews, testimonials, and their published content on blogs and social media.

FAQ - Legacy application modernization services

How much does application modernization cost?

The cost of application modernization can be influenced by the size and complexity of the application, the specific goals of modernization (such as moving to the cloud, updating the user interface, or improving scalability), the technologies involved, and whether the work is done in-house or outsourced.

To narrow it down, take into account the following factors:

1. Scope and complexity: Larger and more complex applications will require more effort to modernize. This includes understanding the existing codebase, dependencies, and functionality that needs to be replicated or improved.
2. Modernization strategy: The approach taken to modernize the application can significantly impact costs. For example, re-hosting (lifting and shifting to the cloud) might be less expensive in the short term compared to re-platforming (modifying the app to better suit cloud environments) or refactoring (rewriting parts of the application to take full advantage of cloud-native technologies).
3. Technology stack: Updating or changing the technology stack (e.g., moving from a monolithic architecture to microservices) can add to the cost. Newer technologies might require additional training for your team or the hiring of new talent.
4. Infrastructure and tools: Moving to cloud services or adopting new development and deployment tools can introduce additional costs. However, these can be offset by savings in areas such as reduced server maintenance costs.
5. Security and compliance: Ensuring that the modernized application meets current security standards and regulatory requirements can add to the project's cost.
6. Testing and Quality Assurance: Thorough testing is essential to ensure that the modernized application performs well and is free from bugs. This includes functional testing, performance testing, and security testing.
7. Training and change management: Training staff to use new technologies or processes and managing the change within the organization can also contribute to the overall cost.

In general, the cost of application modernization can range from a few thousand dollars for small, simple applications to several hundred thousand or even millions of dollars for large, complex systems. It's important to conduct a thorough assessment of the existing application and your goals for modernization to develop a realistic budget.

How long will it take to modernize a legacy systems?

The duration of a legacy system modernization project depends on several factors, similar to those affecting cost. These factors include the size and complexity of the system, the chosen modernization strategy, the technology stack, and the available resources. Here's a rough guideline on what to expect:

1. Small projects: For smaller systems or projects where the scope is limited to updating certain components, the modernization process can take from a few weeks to a few months.
2. Medium projects: For medium-sized projects, especially those involving moving to the cloud, re-platforming, or partial rewriting, the timeline can range from several months to a year.
3. Large and complex projects: Large-scale modernization efforts, such as fully rewriting a legacy system, adopting microservices architecture, or extensive cloud integration, can take from one to several years.

The modernization process typically involves several stages, each affecting the timeline:

• Assessment and planning: Understanding the current state of the legacy system, defining the modernization goals, and planning the process. This stage can take weeks to months, depending on the system's complexity.
• Proof of Concept: Developing a proof of concept to validate the chosen modernization approach. This stage is variable but can take from a few weeks to a few months.
• Implementation: The actual work of modernizing the system, which can vary widely in duration based on the project's scope and complexity.
• Testing and Quality Assurance: Ensuring the modernized system meets all functional and performance requirements. This stage overlaps with implementation and can extend beyond the initial rollout.
• Training and deployment: Training users and deploying the modernized system. The duration of this stage depends on the system's size and the number of users.

Key considerations affecting the timeline of modernizing legacy applications:

• Availability of resources: Having enough skilled personnel available to work on the project can significantly impact the timeline.
• Vendor or third-party dependencies: Delays can occur if the modernization involves waiting for external vendors or third-party components.
• Unforeseen challenges: Legacy systems often contain undocumented features or complexities that become apparent only during modernization, potentially extending the timeline.
• Change management: The need to manage organizational change effectively, including training for new processes or technologies, can also influence the duration.

What are the types of application modernization services?

Legacy application modernization services encompass a range of strategies and solutions designed to update and enhance legacy systems, making them more efficient, scalable, and aligned with current business needs and technology standards. These services can be broadly categorized as follows:

Rehosting:

Also known as "lift and shift," this involves moving applications from on-premises infrastructure to the cloud without changing the application's code. Rehosting is often the first step in modernization, offering immediate benefits such as reduced infrastructure costs and improved scalability without the need for significant redevelopment.

Replatforming:

This involves making minor modifications to the application to take advantage of new cloud infrastructure capabilities without fundamentally changing the core architecture of the legacy application. Examples include using cloud-managed databases or adopting cloud storage solutions.

Refactoring / Rearchitecting:

This approach involves making significant changes to the legacy application's code to fully utilize cloud-native features and capabilities. It often involves moving to a microservices architecture, which allows for better scalability, maintainability, and deployment flexibility. This process can be more time-consuming and costly but results in a more future-proof and scalable application.

Rebuilding:

Rebuilding a legacy application involves rewriting it from scratch while preserving its scope and specifications. This option allows for adopting modern programming languages, frameworks, and architectures, offering an opportunity to address legacy issues and improve performance and scalability.

Replacing:

This involves replacing the legacy system with a new application or a set of applications that fulfill the same business needs. The new solution can be custom-built or purchased as an off-the-shelf product. Replacement is considered when the existing system is too outdated or costly to maintain and modernize.

Encapsulation:

Encapsulation involves leveraging the existing functionality of legacy applications by encapsulating data and functions and making them available as services via an API. This approach allows for incremental modernization and enables legacy systems to interact with modern applications.

Software portfolio management:

This service involves analyzing and managing the entire software portfolio to identify modernization opportunities, ensure software compliance, manage licenses, and optimize software investments. It's crucial for strategic planning and resource allocation in large-scale modernization projects.

Cloud integration services:

These services focus on integrating cloud services with existing applications to enhance functionality, scalability, and performance. It includes integrating with cloud-based storage, databases, AI/ML services, and serverless computing platforms.

DevOps and Continuous Integration/Continuous Deployment (CI/CD) implementation:

Modernizing an application often includes adopting DevOps practices and implementing CI/CD pipelines to streamline development, testing, and deployment processes. This enhances agility, improves product quality, and accelerates time to market.

Security modernization:

Updating security protocols, implementing modern encryption methods, and integrating security services to protect against current threats. This is critical as older applications often lack the defenses to deal with today's sophisticated cyber attacks.