Company lists · Data refreshed September 2026

Top 25 Legacy system modernization consultancies based in India

Name: Legacy system modernization consultancies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,483 companies tracked

RevenueBase identified 1,483 legacy system modernization consultancies headquartered in India as of September 2026 and tracks 33,981 professional contacts across them, including 4,867 with verified work emails. Hyderabad is the largest hub.

This list covers legacy system modernization consultancies headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,483Companies

33,981Contacts tracked

4,867Verified emails

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The 25 largest legacy system modernization consultancies based in India

Ranked by team size

Top 25 of 1,483 legacy system modernization consultancies based in India, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to legacy system modernization consultancies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sonata Software	Partial evidence	Bangalore, IndiaHQ checked Sep 28, 2026	5,001-10,000	7,508 contacts →
	Partial evidence “Sonata Software Limited is a leading Modernization engineering company, headquartered in Bangalore.” Source: RevenueBase Database · checked Sep 28, 2026
2	Kumaran Systems	Strong evidence	Chennai, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,219 contacts →
	Strong evidence “Kumaran Systems: Engineering Future-Ready Transformations Since 1992, Kumaran Systems has been helping enterprises bridge the past and the future, reimagining legacy systems and…” Source: RevenueBase Database · checked Sep 28, 2026
3	People Prime Worldwide	Indirect evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	501-1,000	806 contacts →
	Indirect evidence “At People Prime Worldwide, we deliver innovative IT solutions that drive business success.” Source: RevenueBase Database · checked Sep 28, 2026
4	Radixweb	Partial evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	501-1,000	754 contacts →
	Partial evidence “A global software engineering company with 26+ years of experience helping enterprises build, modernize, and scale complex digital systems.” Source: RevenueBase Database · checked Sep 28, 2026
5	Foray Software Private Limited	Indirect evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	n/a	740 contacts →
	Indirect evidence “Innorev Technologies Pvt Ltd is a leading IT consulting and services firm offering the right blend of technology and skill-set to organizations across industries.” Source: RevenueBase Database · checked Sep 28, 2026
6	Hidden Brains Infotech	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	501-1,000	731 contacts →
	Indirect evidence “Hidden Brains InfoTech is CMMI Level 3 Enterprise Software Development & IT Consulting Company with a focus on digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
7	CAT Technologies LTD	Partial evidence	Hyd, IndiaHQ checked Sep 28, 2026	201-500	660 contacts →
	Partial evidence “CAT Technology Inc, established in October is engaged in providing quality consulting services in Systems Analysis, System Design, Database Administration, Systems Engineering…” Source: RevenueBase Database · checked Sep 28, 2026
8	JMR Infotech	Indirect evidence	Bangalore, IndiaHQ checked Sep 28, 2026	501-1,000	584 contacts →
	Indirect evidence “We Consult, Conceptualize and Implement Information Technology Solutions to Build, Run & Grow Businesses Digital and Business 4.0 are changing the way financial institutions…” Source: RevenueBase Database · checked Sep 28, 2026
9	Nippon Data Systems	Partial evidence	Noida, IndiaHQ checked Sep 28, 2026	1,001-5,000	480 contacts →
	Partial evidence “Established in 1994, Nippon Data Systems Ltd.” Source: RevenueBase Database · checked Sep 28, 2026
10	Opstree Global	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	201-500	371 contacts →
	Indirect evidence “The world's most complex enterprises don't need another vendor.” Source: RevenueBase Database · checked Sep 28, 2026
11	O2f Info Solutions Private Limited	Indirect evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	501-1,000	337 contacts →
	Indirect evidence “O2F INFO SOLUTIONS PRIVATE LIMITED is a company based out of HYDERABAD, Telangana, India.” Source: RevenueBase Database · checked Sep 28, 2026
12	Ecotech IT Solutions PVT LTD A Weiss Gmbh Company	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	201-500	321 contacts →
	Indirect evidence “Ecotech is a technology consulting company with expertise in digital transformation, product development and mission critical software development.” Source: RevenueBase Database · checked Sep 28, 2026
13	Achala IT Solutions PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	201-500	315 contacts →
	Indirect evidence “Use qualified offshore IT resources as additional capabilities to your onsite team” Achala IT Solutions is a technology consulting organization.” Source: RevenueBase Database · checked Sep 28, 2026
14	Remiges Technologies PVT LTD	Indirect evidence	Navi Mumbai, IndiaHQ checked Sep 28, 2026	201-500	293 contacts →
	Indirect evidence “Remiges is a software projects company focusing on app modernisation encompassing DB migration, devops, automation and UI/UX Our strength lies in providing robust, scalable…” Source: RevenueBase Database · checked Sep 28, 2026
15	Vega Intellisoft PVT LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 28, 2026	1,001-5,000	288 contacts →
	Indirect evidence “At Vega IntelliSoft, we drive business transformation through innovative software solutions.” Source: RevenueBase Database · checked Sep 28, 2026
16	Merino Consulting Services	Indirect evidence	New Delhi, IndiaHQ checked Sep 28, 2026	201-500	256 contacts →
	Indirect evidence “Merino Consulting Services is a global leader in IT consulting and enterprise software solutions, with a presence in over 44 countries and 6 global offices.” Source: RevenueBase Database · checked Sep 28, 2026
17	Claritus Management Consulting	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	201-500	241 contacts →
	Indirect evidence “Claritus Consulting is a global technology services and consulting firm helping businesses modernize, scale, and innovate.” Source: RevenueBase Database · checked Sep 28, 2026
18	Dataction Analytics Private Limited	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	501-1,000	225 contacts →
	Indirect evidence “We help businesses make sense of data, modernize technology, and build strong, scalable teams.” Source: RevenueBase Database · checked Sep 28, 2026
19	Dgliger Consulting	Indirect evidence	Gurgaon, IndiaHQ checked Sep 28, 2026	201-500	207 contacts →
	Indirect evidence “At DGLiger, we are architects of transformation, dedicated to enabling organizations to thrive through the development of strong business and technology infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
20	Umbrella Infocare	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	201-500	204 contacts →
	Indirect evidence “Umbrella Infocare, a “Born in Cloud” company, was founded in 2013 with the vision of enabling digital transformation for businesses.” Source: RevenueBase Database · checked Sep 28, 2026
21	Balbhas Business Sysnomics LLC	Indirect evidence	Chennai, IndiaHQ checked Sep 28, 2026	201-500	144 contacts →
	Indirect evidence “Balbhas Business Sysnomics is focusing on IT Consulting and Solutioning.” Source: RevenueBase Database · checked Sep 28, 2026
22	Starlight Data Solutions	Indirect evidence	New Delhi, IndiaHQ checked Sep 28, 2026	51-200	135 contacts →
	Indirect evidence “Starlightdata Solutions is distinguished for its capability of transforming clients’ business objectives through arduous yet incremental innovation strategies.” Source: RevenueBase Database · checked Sep 28, 2026
23	Logicsoft	Partial evidence	Gurugram, IndiaHQ checked Sep 28, 2026	51-200	131 contacts →
	Partial evidence “Technology Consulting - IT strategy alignment with business goals - Architecture design for scalable and secure systems - Digital transformation advisory (Cloud, Blockchain, AI)-…” Source: RevenueBase Database · checked Sep 28, 2026
24	Si2 Technologies PVT LTD	Indirect evidence	Vadodara, IndiaHQ checked Sep 28, 2026	51-200	130 contacts →
	Indirect evidence “Founded in 2016, Si2 Technologies is a trusted IT services and consulting company delivering expertise across SAP solutions, Salesforce services, IT infrastructure, and project…” Source: RevenueBase Database · checked Sep 28, 2026
25	Viscap Consultancy Services	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	51-200	128 contacts →
	Indirect evidence “VISCAP is a trusted consulting and digital transformation partner, helping enterprises modernize, scale, and compete in an experience-led, AI-driven world.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: legacy system modernization consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names legacy system modernization consultancies.
Partial evidence: Its own public description names part of legacy system modernization consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy system modernization consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,483 legacy system modernization consultancies based in India

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Legacy system modernization consultancies based in India at a glance

As of Sep 28, 2026

14.3%Verified-email coverage

22.9Average contacts per company

11-50Median size (employees)

10.2%Largest-city concentration · Hyderabad

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

496

11-50

678

51-200

216

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 1,483 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among legacy system modernization consultancies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in India whose own description of what they do matches “legacy system modernization consultancies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names legacy system modernization consultancies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among legacy system modernization consultancies, and records with no verified work email. Companies headquartered outside India are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 4,867 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Legacy system modernization consultancies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names legacy system modernization consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many legacy system modernization consultancies are there based in India?

RevenueBase identified 1,483 legacy system modernization consultancies headquartered in India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Sonata Software, headquartered in Bangalore, tops this list with the largest team on record.

Which city has the most legacy system modernization consultancies?

Hyderabad leads with 151 headquartered companies, followed by Pune (102) and Noida (92).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,867 verified decision-maker contacts tracked across these 1,483 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.