Company lists · Data refreshed September 2026

Top 25 Digital transformation consulting firms worldwide

RevenueBase identified 74,121 digital transformation consulting firms worldwide as of September 2026 and tracks 4,169,945 professional contacts across them, including 1,237,956 with verified work emails and 360,530 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers digital transformation consulting firms 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 1, 2026. Country and city lists for digital transformation consulting firms 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
74,121Companies
4,169,945Contacts tracked
1,237,956Verified emails
360,530Mobile numbers
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The 25 largest digital transformation consulting firms worldwide

Ranked by team size
Top 25 of 74,121 digital transformation consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to digital transformation consulting firms: 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
1Indirect evidenceMX10001+637,773 contacts →

Indirect evidence

“Tata Consultancy Services (TCS) is the technology partner of choice for industry leading organizations worldwide.”

Source: RevenueBase Database · checked Sep 1, 2026
2Partial evidencePorto Alegre, BR10001+283,178 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
3Partial evidenceToronto, ON, CA10001+246,592 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 1, 2026
4Strong evidenceMilton Keynes, GB10001+138,625 contacts →

Strong evidence

“Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.”

Source: RevenueBase Database · checked Sep 1, 2026
5Indirect evidenceKnoxville, TN, US10001+86,818 contacts →

Indirect evidence

“Insights you can act on.”

Source: RevenueBase Database · checked Sep 1, 2026
6Indirect evidenceAshburn, VA, US10001+82,827 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 1, 2026
7Strong evidencePhiladelphia, PA, US10001+60,707 contacts →

Strong 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 1, 2026
8Strong evidencePittsford Rochester, NY, US10001+46,965 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceLondon, GB10001+46,619 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
10Indirect evidenceLondon, GB10001+43,740 contacts →

Indirect evidence

“At Mphasis, engineering has been in our DNA since inception.”

Source: RevenueBase Database · checked Sep 1, 2026
11Partial evidenceJersey City, NJ, US10001+40,360 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
12Partial evidenceBoston, MA, US10001+38,603 contacts →

Partial evidence

“Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.”

Source: RevenueBase Database · checked Sep 1, 2026
13Strong evidenceLas Vegas, NV, US10001+37,887 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 1, 2026
14Strong evidenceEdinburgh, GB10001+37,387 contacts →

Strong 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 1, 2026
15Partial evidenceStuttgart, DE10001+31,186 contacts →

Partial evidence

“GlobalLogic, a Hitachi Group company, is a trusted partner in design, data, and digital engineering for the world’s largest and most innovative companies.”

Source: RevenueBase Database · checked Sep 1, 2026
16Indirect evidenceChicago, IL, US10001+29,841 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceToronto, ON, CA10001+29,576 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceChertsey, GB10001+27,186 contacts →

Partial evidence

“We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients…”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceTampa, FL, US10001+21,110 contacts →

Indirect evidence

“LTI is now LTIMindtree, and we are getting businesses to the future, faster.”

Source: RevenueBase Database · checked Sep 1, 2026
20Indirect evidenceNew York, US10001+18,722 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceLuxembourg, LU10001+18,397 contacts →

Partial evidence

“Inetum is a European leader in digital services.”

Source: RevenueBase Database · checked Sep 1, 2026
22Partial evidenceFR10001+18,293 contacts →

Partial evidence

“Founded in 1926 by Marcel Bleustein-Blanchet, today Publicis Groupe is one of the largest communications groups in the world and a leader in marketing, communication, and digital…”

Source: RevenueBase Database · checked Sep 1, 2026
23Partial evidencePhiladelphia, PA, US10001+17,029 contacts →

Partial 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 1, 2026
24Indirect evidenceAlcobendas, ES10001+15,287 contacts →

Indirect evidence

“We are one of the world's leading consultancies in technological services for companies and the public sector.”

Source: RevenueBase Database · checked Sep 1, 2026
25Indirect evidenceSao Paulo, BR10001+14,049 contacts →

Indirect evidence

“Navigating Change.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 74,121 digital transformation consulting firms worldwide

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Digital transformation consulting firms worldwide at a glance

As of Sep 1, 2026
29.7%Verified-email coverage
8.6%Mobile-number coverage
56.3Average contacts per company
1-10Median size (employees)
4.3%Largest-city concentration · London
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
45,342
11-50
18,332
51-200
6,778
201-500
1,781
501-1,000
707
1,001-5,000
623
5,001-10,000
35
10001+
214

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 consulting firms, 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
46 countries, largest first: the United States, the United Kingdom, Germany, France, Brazil, Canada, Australia, Spain, Italy, the Netherlands and 36 more. Country and city lists for digital transformation consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “digital transformation consulting firms”. 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 consulting firms), 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 consulting firms, 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, 1,237,956 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 1, 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 consulting firms by location

179 lists · largest first

Every Digital transformation consulting firms 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 consulting firms, 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 consulting firms are there worldwide?

RevenueBase identified 74,121 digital transformation consulting firms 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?

Tata Consultancy Services, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most digital transformation consulting firms?

The United States leads with 20,205 companies, followed by the United Kingdom (6,680) and Germany (6,366). Every digital transformation consulting firms list by country and city is linked on this page.

Which city has the most digital transformation consulting firms?

London leads with 3171 headquartered companies, followed by Paris (2056) and Sao Paulo (1591).

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 1,237,956 verified decision-maker contacts tracked across these 74,121 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 1, 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.