Company lists · Data refreshed September 2026

Top 25 IT consulting partners worldwide

RevenueBase identified 70,953 IT consulting partners worldwide as of September 2026 and tracks 3,817,531 professional contacts across them, including 1,185,875 with verified work emails and 367,924 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers IT consulting partners 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 27, 2026. Country and city lists for IT consulting partners 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 27, 2026 86% judged on-target in blind review
70,953Companies
3,817,531Contacts tracked
1,185,875Verified emails
367,924Mobile numbers
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The 25 largest IT consulting partners worldwide

Ranked by team size
Top 25 of 70,953 IT consulting partners worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT consulting partners: 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 evidenceDublin 2, IrelandHQ checked Sep 27, 202610001+551,347 contacts →

Indirect 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 27, 2026
2Partial evidenceParis, FranceHQ checked Sep 27, 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 27, 2026
3Indirect evidenceNoida, CA, IndiaHQ checked Sep 27, 202610001+234,037 contacts →

Indirect 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 27, 2026
4Indirect evidenceItalyHQ checked Sep 27, 202610001+86,480 contacts →

Indirect evidence

“Insights you can act on.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceAshburn, VA, United StatesHQ checked Sep 27, 202610001+82,768 contacts →

Partial 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 27, 2026
6Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202610001+40,100 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
7Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202610001+38,730 contacts →

Strong 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 27, 2026
8Indirect evidenceVancouver, BC, CanadaHQ checked Sep 27, 202610001+38,300 contacts →

Indirect 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 27, 2026
9Partial evidenceParis, FranceHQ checked Sep 27, 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 27, 2026
10Indirect evidenceAliso Viejo, CA, United StatesHQ checked Sep 27, 202610001+34,875 contacts →

Indirect evidence

“UST is a global digital transformation solutions provider.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceFlorham Park, NJ, United StatesHQ checked Sep 27, 202610001+30,315 contacts →

Indirect 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 27, 2026
12Indirect evidenceSouthborough, MA, United StatesHQ checked Sep 27, 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 27, 2026
13Indirect evidenceHanover, MD, United StatesHQ checked Sep 27, 202610001+24,693 contacts →

Indirect evidence

“We’re TEKsystems and TEKsystems Global Services.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidencePlano, TX, United StatesHQ checked Sep 27, 202610001+22,390 contacts →

Indirect evidence

“NTT DATA, Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceMunich, GermanyHQ checked Sep 27, 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 27, 2026
16Indirect evidenceSt.-ouen, United StatesHQ checked Sep 27, 202610001+18,512 contacts →

Indirect evidence

“Inetum is a European leader in digital services.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceBoulogne-billancourt Cedex, FranceHQ checked Sep 27, 202610001+17,044 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceAlcobendas, SpainHQ checked Sep 27, 202610001+15,041 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 27, 2026
19Indirect evidenceMonterrey, MexicoHQ checked Sep 27, 202610001+13,490 contacts →

Indirect evidence

“At Softtek, we drive the strategic development of our clients through software engineering.”

Source: RevenueBase Database · checked Sep 27, 2026
20Strong evidenceSaint Quentin En Yvelines, ItalyHQ checked Sep 27, 202610001+13,436 contacts →

Strong 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 27, 2026
21Indirect evidenceVernon Hills, IL, United StatesHQ checked Sep 27, 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 27, 2026
22Indirect evidenceChandler, AZ, United StatesHQ checked Sep 27, 202610001+12,899 contacts →

Indirect evidence

“Insight Enterprises, Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceRockville, MD, United StatesHQ checked Sep 27, 202610001+12,891 contacts →

Indirect evidence

“Infinite is a.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202610001+12,820 contacts →

Indirect evidence

“At Synechron, we believe in the power of digital to transform businesses for the better.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceMclean, VA, United StatesHQ checked Sep 27, 202610001+12,815 contacts →

Indirect evidence

“Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 70,953 IT consulting partners worldwide

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IT consulting partners worldwide at a glance

As of Sep 27, 2026
31.1%Verified-email coverage
9.6%Mobile-number coverage
53.8Average contacts per company
1-10Median size (employees)
3.6%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
39,857
11-50
19,220
51-200
7,697
201-500
2,099
501-1,000
812
1,001-5,000
739
5,001-10,000
125
10001+
220

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 IT consulting partners, 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
45 countries, largest first: the United States, the United Kingdom, Germany, France, Brazil, Canada, Italy, Australia, Spain, Mexico and 35 more. Country and city lists for IT consulting partners are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “IT consulting partners”. 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 IT consulting partners), 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 IT consulting partners, 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, 1,185,875 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 27, 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.

IT consulting partners by location

338 lists · largest first

Every IT consulting partners 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 IT consulting partners, 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 IT consulting partners are there worldwide?

RevenueBase identified 70,953 IT consulting partners 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 IT consulting partners?

The United States leads with 21,899 companies, followed by the United Kingdom (6,218) and Germany (5,423). Every IT consulting partners list by country and city is linked on this page.

Which city has the most IT consulting partners?

London leads with 2545 headquartered companies, followed by Paris (1652) and Sao Paulo (1436).

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 1,185,875 verified decision-maker contacts tracked across these 70,953 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 27, 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.