Company lists · Data refreshed September 2026

Top 25 IT transformation services worldwide

Name: IT transformation services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 34,896 companies tracked

RevenueBase identified 34,896 company matches for IT transformation services worldwide as of September 2026 and tracks 3,332,781 professional contacts across them, including 889,461 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT transformation services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for IT transformation services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

34,896Companies

3,332,781Contacts tracked

889,461Verified emails

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The 25 largest IT transformation services worldwide

Ranked by team size

Top 25 of 34,896 company matches for IT transformation services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tata Consultancy Services	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	10001+	634,047 contacts →
	Exact match “Tata Consultancy Services (TCS) is the technology partner of choice for industry leading organizations worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Infosys	Exact match	Bangalore, IndiaHQ recorded Sep 21, 2026	10001+	323,099 contacts →
	Exact match “Infosys is a global leader in next-generation digital services and consulting.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Capgemini	Exact match	Paris, FranceHQ recorded Sep 21, 2026	10001+	284,286 contacts →
	Exact match “Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	WIPRO	Exact match	Bangalore, IndiaHQ recorded Sep 21, 2026	10001+	244,626 contacts →
	Exact match “Wipro Limited (NYSE: WIT, BSE: 507685, NSE: WIPRO) is a leading AI-powered technology services and consulting company focused on building innovative solutions that address…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	DXC Technology	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	10001+	82,768 contacts →
	Exact match “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Accenture In India	Exact match	Bengaluru, IndiaHQ recorded Sep 21, 2026	10001+	74,008 contacts →
	Exact match “Accenture is a global professional services company with leading capabilities in digital, cloud and security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Mphasis	Exact match	Bangalore, IndiaHQ recorded Sep 21, 2026	10001+	43,484 contacts →
	Exact match “A leading applied technology services company, we innovate to deliver service excellence and successful outcomes across sales, delivery and development.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	NTT Data	Exact match	Tokyo, JapanHQ recorded Sep 21, 2026	10001+	38,436 contacts →
	Exact match “NTT DATA – a part of NTT Group – IT and business services headquartered in Tokyo.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Telus Digital	Exact match	Vancouver, BC, CanadaHQ recorded Sep 21, 2026	10001+	38,300 contacts →
	Exact match “TELUS Digital crafts unique and enduring experiences for customers and employees, and creates future-focused digital transformations that stand the test of time.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Sopra Steria	Exact match	Paris, FranceHQ recorded Sep 21, 2026	10001+	36,960 contacts →
	Exact match “Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	UST	Exact match	Aliso Viejo, CA, United StatesHQ recorded Sep 21, 2026	10001+	34,875 contacts →
	Exact match “UST is a global digital transformation solutions provider.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Virtusa	Exact match	Southborough, MA, United StatesHQ recorded Sep 21, 2026	10001+	29,613 contacts →
	Exact match “Virtusa is a global product and platform engineering services company that makes experiences better with technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Servicenow	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 21, 2026	10001+	28,867 contacts →
	Exact match “ServiceNow (NYSE: NOW) makes the world work better for everyone.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Persistent Systems	Exact match	Pune, IndiaHQ recorded Sep 21, 2026	10001+	27,154 contacts →
	Exact match “We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Teksystems	Exact match	Hanover, MD, United StatesHQ recorded Sep 21, 2026	10001+	24,693 contacts →
	Exact match “We’re TEKsystems and TEKsystems Global Services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	LTI	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	10001+	21,036 contacts →
	Exact match “LTI is now LTIMindtree, and we are getting businesses to the future, faster.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Nagarro	Exact match	Munich, GermanyHQ recorded Sep 21, 2026	10001+	18,676 contacts →
	Exact match “Nagarro helps future-proof your business through a forward-thinking, fluidic, and CARING mindset.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	ALTEN	Exact match	Boulogne-billancourt Cedex, FranceHQ recorded Sep 21, 2026	10001+	17,044 contacts →
	Exact match “ALTEN is committed to meeting the expectations of its stakeholders and anticipating their requirements in the fields of innovation, R&D, and technological information systems.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Birlasoft	Exact match	Pune, IndiaHQ recorded Sep 21, 2026	10001+	13,983 contacts →
	Exact match “Navigating Change.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Insight	Exact match	Chandler, AZ, United StatesHQ recorded Sep 21, 2026	10001+	12,899 contacts →
	Exact match “Insight Enterprises, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Infinite Computer Solutions	Exact match	Rockville, MD, United StatesHQ recorded Sep 21, 2026	10001+	12,891 contacts →
	Exact match “Infinite is a.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Synechron	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	12,820 contacts →
	Exact match “At Synechron, we believe in the power of digital to transform businesses for the better.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Apex Systems	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	12,231 contacts →
	Exact match “Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Luxoft	Exact match	Zug, SwitzerlandHQ recorded Sep 21, 2026	10001+	11,471 contacts →
	Exact match “Luxoft, a DXC Technology Company (NYSE: DXC), is a digital strategy and software engineering firm providing bespoke technology solutions that drive business change for customers…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	T-Systems International	Exact match	Frankfurt Am Main, GermanyHQ recorded Sep 21, 2026	10001+	10,154 contacts →
	Exact match “Your digitalization partner with industry expertise With locations in more than 26 countries and over employees (2024), T-Systems is one of the leading providers of digital…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT transformation services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 34,896 IT transformation services worldwide

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IT transformation services worldwide at a glance

As of Sep 21, 2026

26.7%Verified-email coverage

95.5Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

15,436

11-50

11,717

51-200

4,947

201-500

1,429

501-1,000

581

1,001-5,000

463

5,001-10,000

10001+

169

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for IT transformation services are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT transformation services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 889,461 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT transformation services by location

233 lists · largest first

Every IT transformation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT transformation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT transformation services are there worldwide?

RevenueBase identified 34,896 company matches for IT transformation services worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Tata Consultancy Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most IT transformation services?

The United States leads with 6,220 companies, followed by India (6,005) and the United Kingdom (1,674). Every IT transformation services list by country and city is linked on this page.

Which city has the most IT transformation services?

London leads with 756 company records, followed by Hyderabad (613) and Pune (512).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 889,461 professional contacts with verified work emails tracked across these 34,896 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.