Modernizing a business’s infrastructure is perhaps the most important part of any significant digital transformation project. Static on-prem estates are quickly being replaced by hybrid-cloud fabrics, infrastructure-as-code, AI-assisted operations, and green datacentre retrofits. The following guide to the best it infrastructure modernisation services lists vendors who consistently deliver sophisticated, future-proof infrastructure modernization programs and have been deemed worthy.
Keep in mind that each firm has its own way of doing things and its own work culture. One organization may find Future Processing to be the most useful, while another company may be more interested in what Accenture or another provider has to offer.
| Provider | HQ | Employees | Founded | Select Modernisation Clients | Review Highlights |
| Future Processing | Gliwice, Poland | 1,000+ | 2000 | Cambridge University Press, KMD, Linde, Datapharm | 4.8★ on Clutch |
| ScienceSoft | McKinney, Texas US | ~750 | 1989 | Walmart, eBay, NASA JPL, Baxter, PerkinElmer | 4.8★ on Clutch |
| Kyndryl | New York City US | 90,000 | 2021 | 75 of Fortune 100, CA Grameen, 3PL AI assistant, Skytap acquisition | Great Place to Work Certified in 10 countries |
| HCLTech | Noida, India | 223,00
0+ |
1976 | Boeing 787, Deutsche Bank, apoBank, US energy utility | 4.0★ for HCLSoftware on Clutch |
| Capgemini | Paris, France | 340,000+ | 1967 | BBVA, ENI, e.l.f. Cosmetics, BNL BNP Paribas | 4.4★ on Clutch |
| Accenture | Dublin, Ireland | 774,000 | 1989 | NFL, Atlassian, Marriott, BBVA | 4.6★ average on Clutch |
1. Future Processing
Future Processing started out as a computer vision startup in Gliwice, Poland. currently, it is a consultancy that focuses on modernizing businesses and has more than 1,000 employees in Poland and around the world. It is currently one of the finest providers of IT infrastructure modernization services. The company’s strength is in turning old .NET and Java systems into microservices and running cloud operations in certified Azure and AWS environments. Their unique migration system cuts down on data loss a lot more than what is usual in the field.
Some of the most important initiatives are transforming the Cambridge University Press digital library into a microservices-driven platform, a 12-year cooperation with KMD, a huge Danish public sector company, and the quick launch of Linde’s hydrogen car-sharing platform.
2. ScienceSoft
ScienceSoft is based in Texas and has engineering centers throughout Europe, the Middle East, and Latin America. The company started off doing AI research in 1989 and has now moved on to modernizing IT. It has now completed over 4,000 projects. ScienceSoft’s main areas of expertise are automatic refactoring for old systems, ITIL-aligned infrastructure assistance around the clock, and certified secure development.
They have been very important in changing Walmart’s Hadoop-based analytics, making a DevOps platform for eBay that works in multiple regions, and improving telemetry pipelines for NASA’s Jet Propulsion Laboratory.
3. Kyndryl
Kyndryl, which came out of IBM in 2021, is currently the world’s largest provider of infrastructure services, with 90,000 employees in 60 countries. It has a lot of experience with mainframes and hybrid clouds, as well as its own products like Kyndryl Bridge, an observability platform that saves clients hundreds of millions of dollars every year.
Kyndryl has worked with 75 of the Fortune 100 companies. It has helped CA Grameen with digital banking and made logistics solutions that use Google’s Vertex AI. In FY 2025, registrations went up 46% from the previous year, reaching $18.2 billion.
4. HCLTech
HCLTech has been a leader in computing since 1976. Today, it employs over 223,000 people and makes around $14 billion a year. Its modernization stack has automated code restructuring, large-scale migration services, and high-efficiency cloud deployments through platforms like CloudSMART.
The projects include digitizing Deutsche Bank’s check systems and helping Boeing with its aircraft software, as well as overseeing a $278 million infrastructure transaction for Germany’s apoBank. The corporation also has a strong internal innovation pipeline that has made billions of dollars.
5. Capgemini
Capgemini is based in Paris and has more than 340,000 employees throughout the world. The company combines legacy transformation with sustainability and data intelligence. It uses its €2B RAISE AI initiative and Intelligent Industry solutions to help with smart manufacturing, IIoT, and 5G integration.
Capgemini’s work to improve energy efficiency cut the amount of power used by data centers by 29%. At the same time, its work to modernize BBVA’s banking platform more than doubled the number of digital users. The company also updated e.l.f. Cosmetics’ commerce stack, which led to a 37% increase in online sales.
6. Accenture
Accenture, the biggest consulting firm in the world, has helped influence the agenda for modernizing infrastructure through its size, expertise, and ongoing innovation. It has the biggest delivery footprint because it has 774,000 employees and makes around $65 billion a year. There are more than 124,000 people working in its Cloud First business alone.
Some of their most important clients are the NFL, Atlassian, and Marriott. Accenture’s 360° Value model helps with outcome-driven transformation, and its myNav tool scores carbon. The organization is still at the top of the lists for digital transformation and great places to work.
