It is very important to hire an expert to modernize your legacy software. You need someone who not only understands all the technical aspects but also has specific knowledge about how to deal with the challenges associated with legacy systems and how to modernize them correctly. In this guide, we have compiled a list of the top 10 companies that provide modernisation of legacy software.

The following companies are the best legacy software modernization companies that we found using our research criteria of:

1) Expertise in technical fields; 

2) Industry knowledge; 

3) Awards and certifications; 

4) Customer reviews.

Here are the top ten companies for legacy software modernization in 2026:

1) Cleveroad

2) Intellias

3) Deloitte

4) Intetics

5) Softeq

6) EXA

7) Uptake

8) Miratech

1. Cleveroad

Cleveroad is an ISO-certified (ISO 9001 and 27001) legacy software modernization company. Both of these certifications are proof of the quality standards that Cleveroad has followed as well as the information security management systems they have set up to maintain those quality standards.

In addition to having demonstrated high levels of trustworthiness across all four industry sectors (with all 77 customer reviews on Clutch averaging 4.9 out of 5) by providing secure and scalable software, Cleveroad has demonstrated technical excellence on numerous global reference websites.

2. Intellias

Intellias specializes in comprehensive legacy software updates and improvements, allowing companies to make their outdated applications more effective and able to handle larger amounts of data. They have a complete knowledge of industries such as Automotive and Financial Services, and have a large focus on Digital Transformation. By providing state-of-the-art technology and processes, Intellias is able to provide smooth integration and application transition. Intellias commits to providing high-quality products, and has received several awards from outside organizations, including a rating from Clutch as one of the best technology suppliers.

3. Deloitte

As one of the largest providers of consulting services and modernizing legacy systems, Deloitte has developed a range of comprehensive solutions to help businesses modernize, move, and integrate their legacy system(s) with emerging or cutting edge technology. Deloitte’s extensive experience in the various industries it serves including banking, retail, and governments, as well as its various industry certifications (e.g., ISO 9001), and its overall leadership position in the many rankings reflect the company’s reputation for credibility. Deloitte uses its proven approaches and advanced tools and methodologies so that businesses can complete the transition process uninterrupted, with limited impact on their operations or customers.

4. Intetics

Intetics is a leading provider of software solutions and has a strong emphasis on modernization of legacy systems. They provide services such as migrating to the cloud, refactoring applications, and integrating systems for clients in industries such as e-commerce, health care and telecommunications. Intetics is proud to hold certifications such as ISO 27001, which exemplifies their commitment to maintain a high standard of security. With deep knowledge of software engineering and extensive experience with large-scale legacy software transformations, Intetics is the preferred partner for organizations wanting to modernize their legacy software.

5. Softeq

Softeq is regarded as one of the top companies providing legacy software modernization solutions, particularly tailored to meet specific client requirements (such as health care, energy, and financial services). What sets Softeq apart from other companies in this space are its highly skilled technical people (by far the best), and its continued success in developing innovative solutions within mobile and embedded systems. The company has received numerous awards (including a recognized place in the Clutch list) for its outstanding work in modernizing existing systems while also helping clientsdecrease time to market; therefore, Softeq is viewed by many within the industry as an innovative leader.

6. EXA

EXA is a software development company with an emphasis on legacy system modernization. With technical expertise in areas such as cloud migration, software reengineering, and system integration, EXA has successfully transformed numerous legacy systems for clients in the finance, logistics, and healthcare industries. EXA holds several industry certifications, ensuring that their modernization processes meet global standards. Their ability to incorporate emerging technologies such as artificial intelligence and blockchain into legacy systems has set them apart as a forward-thinking modernization expert.

7. Uptake

Uptake is an AI-driven technology provider and solution provider in the area of transformation of legacy software through artificial intelligence and analytics. With a customer base that includes the manufacturing, agriculture, and transportation industries, Uptake helps organizations to modernize their operations by using data analytics and process automation. The company has received recognition for their use of new technologies and innovative approaches to the transformation of existing software systems. Because of Uptake's strong commitment to providing customers with technologies that can help them to upgrade their legacy systems, they are able to deliver future-proof solutions.

8. Miratech

A global provider of IT services, such as legacy program updates, cloud technology transformation, and IT infrastructure management, is called Miratech. Miratech is a well-known major firm/solution provider and has vast knowledge of both cloud services and systems integration. They have provided complete service solutions that are designed to help customers with legacy program updates, cloud-based technologies, and IT infrastructure management. Customers receive individualized solutions to meet their specific needs in the sectors of finance and banking, health care, and manufacturing industries. As an ISO R27001 company, Miratech has received numerous industry recognitions for its expertise in "software modernization" and "enterprise IT solutions."

Final Thoughts

Selecting a vendor to assist with your legacy software redevelopment can be a daunting task. However, these companies are among the top-tier providers of expertise in this area. Along with their proven ability to modernize legacy systems through solid technical abilities, they all possess a wealth of experience within their respective industries. Therefore, by evaluating these firms’ competency and service offerings, you’ll set yourself up for success in completing your legacy software redevelopment project and preserving your business for years to come.