Quick Summary :- This 2025 guide lists the top 10 application modernization companies transforming legacy systems into secure, scalable and cloud ready platforms. Known for AI integration, automation and performance optimization, these trusted firms empower enterprises & startups to modernize applications efficiently, enhance operational agility and stay competitive in the evolving digital landscape.
Modern problems need modern software. Legacy systems are holding back innovation & application modernization is the path to achieving agility, security and performance in today’s digital first world.
The Global Application Modernization Market is projected to reach USD 74.63 billion by 2031, driven by the growing demand for scalable cloud solutions, microservices and AI driven modernization tools.
Across industries, organizations are reengineering outdated systems into efficient, future ready applications. From banking to healthcare, modernization ensures seamless integration, cost optimization and faster delivery cycles.
In this blog, we present the top 10 application modernization companies of 2025, leading firms helping enterprises modernize their legacy systems, strengthen performance and accelerate digital transformation.
Why Application Modernization Matters in 2025
Application modernization is not just about updating legacy systems, it’s about future proofing business operations in an increasingly digital world. For large enterprises, it’s the key to maintaining agility, scalability and competitiveness.
Interestingly, around 92% of companies report that they are either modernizing or actively planning to modernize their applications. This massive shift underscores how crucial modernization has become to meet the rising demand for faster, smarter & more efficient solutions.
By embracing modern architectures, cloud platforms and automation tools, businesses can enhance performance, reduce costs and improve customer experiences ensuring they stay ahead in 2025’s fast evolving tech landscape.
Quick Comparison: Top 10 Application Modernization Companies in 2025
Here’s a snapshot of leading global companies helping enterprises modernize legacy systems, enhance agility and adopt cloud native architectures.
| No. | Company Name | Location | Google Rating | Key Strength |
| 1. | eSparkBiz | India | ⭐ 4.1 |
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| 2. | Accenture | Dublin, Ireland | ⭐ 4.6 |
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| 3. | Deloitte | London, England | ⭐ 4.4 |
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| 4. | IBM | Armonk, New York | ⭐ 4.4 |
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| 5. | N-iX | Lviv, Ukraine | ⭐ 4.8 |
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| 6. | Euvic Inc | Gliwice, Poland | ⭐ 4.6 |
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| 7. | Mphasis | Bengaluru, Karnataka | ⭐ 4.2 |
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| 8. | Hexaware Technologies | Woodbridge, New Jersey | ⭐ 4.2 |
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| 9. | Indium | Gliwice, Poland | ⭐ 5.0 |
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| 10. | DXC Technology | Loudoun, Virginia | ⭐ 5.0 |
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Best 10 Application Modernization Companies in 2025
Dive into the strengths, services and success stories of the world’s most trusted application modernization experts driving digital agility.
1. eSparkBiz
eSparkBiz is a leading software development company specializing in application modernization, cloud migration and digital transformation. With 15+ years of experience, they empower enterprises to modernize legacy systems using Artificial Intelligence, microservices and cloud native technologies.
Founded: 2010
Employee: 400+
Project Completed: 1000+
Cost: $12 – $25/hr
Min Project Size: $5,000 +
Ratings: Clutch – 4.9 | Gartner – 5.0 | G2 – 5.0 | DesignRush – 4.5 | GoodFirms – 5.0
Time Zone Availability: GMT, ECT, IST, JST, MET, AET, NST, CST, EST, PST
LinkedIn: eSparkBiz
Notable Clients: Cision, Atlantis, Radefy, Trane
Application Modernization Expertise:
- Legacy System Re-engineering and Refactoring
- Cloud Native Modernization
- API-driven Integration
- DevOps Containerization
- DevOps Automation for Faster Deployment
Why Choose Them:
ISO 9001:2015 and CMMI Level 3 certified, eSparkBiz is recognized for its agile processes, cost effective delivery and AI powered modernization solutions enabling seamless digital transformation for startups and enterprises alike.
- #2 among Top Artificial intelligence Companies in India by The Manifest
- D-U-N-S certified and 5 star on HubSpot and Gartner Peer Insights.
- One of the Top Custom Software Development Companies as per Clutch
- Recognized as the Top IT Staff Augmentation Company of 2025 by Clutch
- Clutch recognizes eSparkBiz for Cloud Consulting Excellence in India
Client Testimonial:
They have a large and capable team, which allowed them to allocate the right resources promptly without any delays.
2. Accenture
Accenture is a global technology and consulting powerhouse known for driving large scale digital transformations. The company offers comprehensive application modernization services that integrate AI, automation and cloud technologies to enhance performance and agility.
Founded: 1989
CEO: Julie Sweet
Employee: 774,000+
Cost: $100-$149/hr
Ratings: DesignRush – 4.1 | G2 – 4.2
LinkedIn: Accenture
Notable Clients: Noli, RCO, Spotify
Application Modernization Expertise:
- Cloud migration and re-platforming
- Mainframe modernization
- Application re-architecture using AI and analytics
- API and microservices enablement
Why Choose Them:
Accenture is trusted by Fortune 500 companies for its deep industry knowledge, advanced analytics capabilities & proven success in transforming legacy systems into scalable, intelligent and secure enterprise applications.
Client Testimonial:
Accenture goes the mile to support our meetings and I always enjoy working with their team.
3. Deloitte
Deloitte stands among the global leaders in technology consulting Offering advanced application modernization solutions that combine strategy, engineering and automation. Their approach helps enterprises optimize legacy systems, and drive innovation through digital transformation.
Founded: 1895
CEO: Joseph Ucuzoglu
Employee: 24,490+
Cost: $100-$149/hr
Ratings: Gartner – 4.6 | G2 – 4.1
LinkedIn: Deloitte
Notable Clients: Integral Diagnostics, BHP
Application Modernization Expertise:
- Cloud native transformation
- Legacy system re-engineering
- AI and data driven modernization
- Enterprise architecture optimization
Why Choose Them:
Deloitte is preferred by global enterprises for its end to end modernization expertise, strategic frameworks and ability to align business goals; With next gen technology adoption ensuring resilience and scalability.
Client Testimonial:
We had a great team both internally and working with Deloitte that have allowed us to deliver the systems implementation; on time, on budget.
4. IBM
IBM is a global technology powerhouse specializing in AI driven application modernization and hybrid cloud transformation. Their modernization solutions help enterprises optimize performance, enhance scalability & accelerate digital innovation through automation and advanced analytics.
Founded: 1911
CEO: Arvind Krishna
Employee: 270,000+
Cost: $50-$99/hr
Ratings: DesignRush – 4.5 | Gartner – 4.2
LinkedIn: IBM
Notable Clients: Pfizer, Sixt, UFC
Application Modernization Expertise:
- Hybrid cloud integration
- AI powered automation (IBM Watson)
- Containerization and microservices
- Mainframe modernization
Why Choose Them:
IBM stands out for its deep expertise in AI, hybrid cloud and enterprise modernization. Their proven frameworks empower organizations to transform legacy infrastructure into future ready digital ecosystems.
Client Testimonial:
Our go live was truly amazing. The star was actually IBM Power10 … Our data migration forecast was 54 hours and we realized this phase in 44 hours.
5. N-iX
N-iX is a leading digital transformation and software engineering company known for modernizing legacy systems with cloud native architectures, DevOps and microservices. They deliver scalable, efficient and future ready enterprise solutions.
Founded: 2002
CEO: Andrew Pavliv
Employee: 24,000+
Cost: $50-$99/hr
Ratings: Clutch – 4.8 | GoodFirms – 5.0
LinkedIn: N-ix
Notable Clients: Bosch, ebay, AVL, ZIM
Application Modernization Expertise:
- Cloud migration and re-platforming
- Microservices and API first architecture
- Legacy modernization and code refactoring
- Continuous integration & DevOps automation
Why Choose Them:
N-iX is trusted for its strong cloud partnerships with AWS, Azure and Google Cloud. Their client focused approach ensures seamless modernization that reduces costs and enhances agility.
Client Testimonial:
Their team consistently met our expectations and maintained a high quality standard throughout the project.
6. Euvic Inc
Euvic is a Poland based IT services company specializing in legacy modernization, cloud integration and digital transformation. They help global enterprises modernize aging applications for improved scalability, performance and cost efficiency.
Founded: 2005
CEO: Ola Hesselroth
Employee: 6,000+
Cost: $50-$99/hr
Ratings: Clutch – 4.8 | GoodFirms – 4.3
LinkedIn: Euvic
Notable Clients: Sabre, HRS, VR, Maersk
Application Modernization Expertise:
- Application re-engineering and migration
- Cloud native development
- API management and service oriented architecture
- System integration and DevOps
Why Choose Them:
Euvic stands out for its “Body & Team Leasing” model; Offering flexible, scalable modernization teams. Their end to end services help enterprises transition seamlessly to modern digital ecosystems.
Client Testimonial:
Euvic is priced decently. They're cheaper than some of the competitors.
7. Mphasis
Mphasis is a leading global IT services provider known for its cloud and cognitive powered application modernization solutions. The company helps enterprises re-architect legacy systems using AI, automation and microservices.
Founded: 1992
CEO: Nitin Rakesh
Employee: 30,000+
Cost: <$25/hr
Ratings: Gartner – 4.0 | G2 – 4.8
LinkedIn: Mphasis
Notable Clients: Apigee, Cloudera, Blue Prism, DXC Technology
Application Modernization Expertise:
- Cloud and microservices transformation
- Mainframe modernization
- API led integration
- AI driven automation
Why Choose Them:
Mphasis combines deep domain expertise with its proprietary Front2Back™ transformation approach ensuring agility, scalability and faster time to market for enterprise modernization initiatives.
Client Testimonial:
Mphasis a good testing team with all technical skills required.
8. Hexaware Technologies
Hexaware Technologies is a global IT, and consulting firm specializing in large scale application modernization. The company helps enterprises migrate legacy systems to cloud native architectures while enhancing performance, agility & scalability.
Founded: 1990
CEO: Srikrishna Ramakarthikeyan
Employee: 31,000+
Cost: $50-$99/hr
Ratings: Gartner – 4.8 | GoodFirms – 5.0
LinkedIn: Hexaware Technologies
Notable Clients: CXT, ES bank, ISG
Application Modernization Expertise:
- Legacy modernization and cloud migration
- Containerization and microservice
- AI and automation for legacy systems
- API and integration modernization
Why Choose Them:
Hexaware leverages its Amaze® platform for seamless legacy to cloud transformation Helping enterprises accelerate modernization with minimal disruption and maximum business value.
Client Testimonial:
Excellent work is being done on our project.
9. Indium
Indium is a digital engineering company helping businesses modernize legacy systems through advanced cloud, data and AI technologies. They focus on delivering secure, scalable and high performance modernization solutions tailored to enterprise needs.
Founded: 1999
CEO: Ram Sukumar
Employee: 2,900+
Cost: <$25/hr
Ratings: Clutch – 4.7 | GoodFirms – 5.0
LinkedIn: Indium software
Notable Clients: Striim, Convey, TOYATO, ATLAS AIR
Application Modernization Expertise:
- Cloud native modernization
- Data migration and modernization
- API integration and microservices architecture
- Application re-engineering and DevOps
Why Choose Them:
Indium Software stands out for its data centric modernization approach combining analytics, cloud and automation to help enterprises achieve agility, resilience and long term scalability.
Client Testimonial:
We’ve been pleased with how accommodating they’ve been in terms of working around our schedule.
10. DXC Technology
DXC Technology is a global leader in IT services and digital transformation empowering enterprises to modernize legacy applications through cloud migration, intelligent automation and platform integration.
Founded: 2017
CEO: Raul Fernandez
Employee: 120,000+
Cost: $50-$99/hr
Ratings: Gartner – 4.4 | G2 – 4.2
LinkedIn: DXC technology
Notable Clients: AGIG, Textron, Astro
Application Modernization Expertise:
- Legacy application replatforming
- Hybrid cloud and infrastructure services
- AI powered business process transformation
- Enterprise application management
Why Choose Them:
DXC Technology offers end to end modernization solutions with proven experience across multiple industries enabling enterprises to accelerate digital transformation, reduce IT complexity and enhance operational efficiency.
Client Testimonial:
DXC was a great partner from the quality of delivery to the commitment to long term results.
🧠 Did You Know?
North America led the global application modernization services market in 2024 capturing, an impressive 40% market share highlighting its strong focus on digital transformation and legacy system upgrades.
How to Choose the Best Application Modernization Company
Selecting the right modernization partner is crucial for a successful digital transformation. Below are key factors to help you identify a reliable and future ready application modernization company.
1. Evaluate Technical Expertise
Choose a company with proven experience in legacy modernization, cloud engineering and microservices architecture. Their technical proficiency ensures your applications are upgraded efficiently with minimal risk and maximum scalability.
2. Check Industry Experience
A modernization partner familiar with your industry’s ecosystem can better address compliance, performance and integration challenges helping you achieve smoother transitions and more relevant business outcomes.
3. Review Past Projects & Case Studies
Review client testimonials and portfolios that demonstrate the company’s ability to modernize complex applications. Real world examples help validate their skills and approach to modernization.
4. Assess Modern Tech Stack & Tools
Ensure the company leverages modern frameworks like Kubernetes, Docker and AI driven automation to build scalable, resilient and performance optimized applications aligned with your future growth.
5. Prioritize Flexibility & Support
Choose a firm that offers continuous post modernization support, agile collaboration and adaptability ensuring your applications stay optimized as your business evolves.
6. Analyze Cost vs. Value Delivered
Instead of focusing only on price, assess the overall value the company provides innovation, speed and long term ROI should guide your investment decision.
💬 Community Insights
Quora answers suggest there’s no single “best company” for app modernization services, as the right choice depends on your needs. However, top names mentioned include TCS, excelhunters and codzgarage infotech, along with advice to research reviews and case studies before deciding.
Conclusion
Application modernization is now at the heart of digital transformation, enabling enterprises to enhance agility, scalability, and performance. By reengineering outdated systems, organizations can improve customer experiences and achieve faster innovation cycles.
As technologies continue to evolve, modernization helps businesses future-proof their operations, reduce maintenance costs, and leverage the full potential of cloud and AI technologies. In 2025, modernized applications are not just a competitive advantage, they’re a business necessity.
Need a reliable partner for your App Modernization needs?
Consult eSparkBiz Experts possessing keen expertise in delivering innovative solutions continuously coping up with the evolving tech trends.
Frequently Asked Questions
What is application modernization?
Application modernization is the process of updating legacy software systems with modern technologies to improve performance, scalability and integration capabilities.
Why is application modernization important for businesses?
It enables businesses to enhance efficiency, reduce technical debt and stay competitive by leveraging cloud, AI and microservices architectures.
What are the main benefits of application modernization?
Key benefits include cost reduction, improved agility, enhanced security and faster time to market for digital product solutions.
Which technologies are used in application modernization?
Common technologies include cloud computing, microservices, containers, DevOps, APIs and AI driven automation.
Which are the best application modernization companies in 2025?
Some of the leading companies include eSparkBiz, Accenture, Deloitte, IBM, N-iX, Mphasis and Hexaware Technologies.