Company lists · Data refreshed September 2026

Top 25 Digital transformation professional services worldwide

RevenueBase identified 57,066 digital transformation professional services worldwide as of September 2026 and tracks 2,925,829 professional contacts across them, including 951,084 with verified work emails and 241,374 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers digital transformation professional services worldwide, 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 24, 2026. Country and city lists for digital transformation professional services follow the table.

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 24, 2026 86% judged on-target in blind review
57,066Companies
2,925,829Contacts tracked
951,084Verified emails
241,374Mobile numbers
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The 25 largest digital transformation professional services worldwide

Ranked by team size
Top 25 of 57,066 digital transformation professional services worldwide, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to digital transformation professional services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDublin 2, IrelandHQ checked Sep 24, 202610001+551,347 contacts →

Partial evidence

“Accenture helps the world’s leading enterprises reinvent by building their digital core and unleashing the power of AI to create value at speed for organizations across industries.”

Source: RevenueBase Database · checked Sep 24, 2026
2Partial evidenceParis, FranceHQ checked Sep 24, 202610001+284,286 contacts →

Partial evidence

“Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value.”

Source: RevenueBase Database · checked Sep 24, 2026
3Partial evidenceNoida, CA, IndiaHQ checked Sep 24, 202610001+234,037 contacts →

Partial evidence

“HCLTech is a global technology company, home to more than people across 60 countries, delivering industry-leading capabilities centered around AI, digital, engineering, cloud and…”

Source: RevenueBase Database · checked Sep 24, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 202610001+122,728 contacts →

Indirect evidence

“Genpact is an agentic and advanced technology solutions company.”

Source: RevenueBase Database · checked Sep 24, 2026
5Indirect evidenceAshburn, VA, United StatesHQ checked Sep 24, 202610001+82,768 contacts →

Indirect evidence

“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…”

Source: RevenueBase Database · checked Sep 24, 2026
6Partial evidenceNewtown, PA, United StatesHQ checked Sep 24, 202610001+60,211 contacts →

Partial evidence

“EPAM (NYSE:EPAM) is a global leader in AI transformation engineering and integrated consulting, serving Forbes Global companies and ambitious startups.”

Source: RevenueBase Database · checked Sep 24, 2026
7Strong evidencePittsford (rochester), NY, United StatesHQ checked Sep 24, 202610001+46,737 contacts →

Strong evidence

“We are an AI-led digital transformation company delivering measurable business outcomes.”

Source: RevenueBase Database · checked Sep 24, 2026
8Partial evidenceNew York, United StatesHQ checked Sep 24, 202610001+46,488 contacts →

Partial evidence

“WNS, part of Capgemini, is a global Agentic AI-powered intelligent operations and transformation company.”

Source: RevenueBase Database · checked Sep 24, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 24, 202610001+40,100 contacts →

Partial evidence

“Choosing a digital partner is about more than capabilities, it’s about collaboration and character.”

Source: RevenueBase Database · checked Sep 24, 2026
10Strong evidenceVancouver, BC, CanadaHQ checked Sep 24, 202610001+38,300 contacts →

Strong evidence

“TELUS Digital crafts unique and enduring experiences for customers and employees, and creates future-focused digital transformations that stand the test of time.”

Source: RevenueBase Database · checked Sep 24, 2026
11Partial evidenceParis, FranceHQ checked Sep 24, 202610001+36,960 contacts →

Partial evidence

“Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.”

Source: RevenueBase Database · checked Sep 24, 2026
12Strong evidenceAliso Viejo, CA, United StatesHQ checked Sep 24, 202610001+34,875 contacts →

Strong evidence

“UST is a global digital transformation solutions provider.”

Source: RevenueBase Database · checked Sep 24, 2026
13Partial evidenceFlorham Park, NJ, United StatesHQ checked Sep 24, 202610001+30,315 contacts →

Partial evidence

“Conduent delivers digital business solutions and services spanning the commercial, government and transportation spectrum – creating valuable outcomes for its clients and the…”

Source: RevenueBase Database · checked Sep 24, 2026
14Indirect evidenceSouthborough, MA, United StatesHQ checked Sep 24, 202610001+29,613 contacts →

Indirect evidence

“Virtusa is a global product and platform engineering services company that makes experiences better with technology.”

Source: RevenueBase Database · checked Sep 24, 2026
15Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 24, 202610001+28,867 contacts →

Indirect evidence

“ServiceNow (NYSE: NOW) makes the world work better for everyone.”

Source: RevenueBase Database · checked Sep 24, 2026
16Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 24, 202610001+26,919 contacts →

Partial evidence

“At Globant, we create the digitally-native products that people love.”

Source: RevenueBase Database · checked Sep 24, 2026
17Indirect evidenceHanover, MD, United StatesHQ checked Sep 24, 202610001+24,693 contacts →

Indirect evidence

“We’re TEKsystems and TEKsystems Global Services.”

Source: RevenueBase Database · checked Sep 24, 2026
18Indirect evidencePlano, TX, United StatesHQ checked Sep 24, 202610001+22,390 contacts →

Indirect evidence

“NTT DATA, Inc.”

Source: RevenueBase Database · checked Sep 24, 2026
19Indirect evidenceBoston, MA, United StatesHQ checked Sep 24, 202610001+20,235 contacts →

Indirect evidence

“Publicis Sapient is a technology company that provides enterprise AI platforms and services.”

Source: RevenueBase Database · checked Sep 24, 2026
20Indirect evidenceMunich, GermanyHQ checked Sep 24, 202610001+18,676 contacts →

Indirect evidence

“Nagarro helps future-proof your business through a forward-thinking, fluidic, and CARING mindset.”

Source: RevenueBase Database · checked Sep 24, 2026
21Indirect evidenceBlue Bell, PA, United StatesHQ checked Sep 24, 202610001+18,676 contacts →

Indirect evidence

“Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations.”

Source: RevenueBase Database · checked Sep 24, 2026
22Indirect evidenceEvanston, IL, United StatesHQ checked Sep 24, 202610001+16,896 contacts →

Indirect evidence

“ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.”

Source: RevenueBase Database · checked Sep 24, 2026
23Partial evidencePlano, TX, United StatesHQ checked Sep 24, 20265,001-10,00014,467 contacts →

Partial evidence

“We help organizations of all sizes digitally transform using software, hardware and services from the Siemens Xcelerator business platform.”

Source: RevenueBase Database · checked Sep 24, 2026
24Partial evidenceSaint Quentin En Yvelines, ItalyHQ checked Sep 24, 202610001+13,436 contacts →

Partial evidence

“Expleo is a global engineering, technology and consulting service provider that partners with leading organisations to guide them through their business transformation, helping…”

Source: RevenueBase Database · checked Sep 24, 2026
25Indirect evidenceVernon Hills, IL, United StatesHQ checked Sep 24, 202610001+13,155 contacts →

Indirect evidence

“At CDW, we know how to make technology work so people can do great things.”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 25 of 57,066 digital transformation professional services worldwide

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Digital transformation professional services worldwide at a glance

As of Sep 24, 2026
32.5%Verified-email coverage
8.2%Mobile-number coverage
51.3Average contacts per company
1-10Median size (employees)
4.6%Largest-city concentration · London
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
35,839
11-50
16,890
51-200
6,820
201-500
1,875
501-1,000
762
1,001-5,000
635
5,001-10,000
111
10001+
205

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 digital transformation professional services, 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.
Coverage
42 countries, largest first: the United States, the United Kingdom, Brazil, Germany, France, Canada, Spain, Australia, Italy, the Netherlands and 32 more. Country and city lists for digital transformation professional services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “digital transformation professional services”. 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 digital transformation professional services), 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 digital transformation professional services, and records with no verified work email.
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, 951,084 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 24, 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.

Digital transformation professional services by location

305 lists · largest first

Every Digital transformation professional 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 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 digital transformation professional services, 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 digital transformation professional services are there worldwide?

RevenueBase identified 57,066 digital transformation professional services worldwide 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?

Accenture, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most digital transformation professional services?

The United States leads with 14,569 companies, followed by the United Kingdom (5,766) and Brazil (4,635). Every digital transformation professional services list by country and city is linked on this page.

Which city has the most digital transformation professional services?

London leads with 2601 headquartered companies, followed by Paris (1411) and Sao Paulo (1146).

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 951,084 verified decision-maker contacts tracked across these 57,066 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 24, 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.