Company lists · Data refreshed November 2026

Top 25 IT advisory firms worldwide

Name: IT advisory firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 54,011 companies tracked

RevenueBase identified 54,011 company matches for IT advisory firms worldwide as of November 2026 and tracks 901,390 professional contacts across them, including 288,458 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT advisory firms 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 November 6, 2026. Country and city lists for IT advisory firms 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 Nov 6, 2026 How this list was built

54,011Companies

901,390Contacts tracked

288,458Verified emails

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The 25 largest IT advisory firms worldwide

Ranked by team size

Top 25 of 54,011 company matches for IT advisory firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Kpmg India	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	10001+	30,313 contacts →
	Exact match “KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Gartner	Exact match	Stamford, United StatesHQ recorded Nov 6, 2026	10001+	23,651 contacts →
	Exact match “We deliver actionable, objective business and technology insights.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	CDW	Exact match	Vernon Hills, IL, United StatesHQ recorded Nov 6, 2026	10001+	13,669 contacts →
	Exact match “At CDW, we know how to make technology work so people can do great things.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Guidehouse	Exact match	Mclean, IL, United StatesHQ recorded Nov 6, 2026	10001+	13,603 contacts →
	Exact match “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Baker Tilly US	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	10001+	10,838 contacts →
	Exact match “Every business is different-and the strongest decisions come from collaborating with a firm that understands how yours truly works.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	World Wide Technology	Exact match	Maryland Heights, MO, United StatesHQ recorded Nov 6, 2026	10001+	9,996 contacts →
	Exact match “We are thinkers and doers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Protiviti	Exact match	Menlo Park, United StatesHQ recorded Nov 6, 2026	5,001-10,000	9,086 contacts →
	Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	SHI International Corp	Exact match	Somerset, United StatesHQ recorded Nov 6, 2026	5,001-10,000	7,151 contacts →
	Exact match “Think of SHI as your personal technology concierge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	KROLL	Exact match	New York, NJ, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,832 contacts →
	Exact match “As the leading independent provider of risk and financial advisory solutions, Kroll leverages our unique insights, data and technology to help clients stay ahead of complex…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	CBIZ	Exact match	Independence, MO, United StatesHQ recorded Nov 6, 2026	10001+	6,622 contacts →
	Exact match “CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Datacom	Exact match	Auckland, New ZealandHQ recorded Nov 6, 2026	5,001-10,000	6,268 contacts →
	Exact match “Datacom is a technology partner and solutions provider combining deep local expertise with global capability, working across data, cloud, cyber security, digital engineering and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Kpmg España	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	5,001-10,000	5,272 contacts →
	Exact match “KPMG in Spain is a professional services firm providing audit, tax, legal, financial, and business advisory services through a team of more than 6,200 professionals across 20…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Adesso SE	Exact match	Dortmund, GermanyHQ recorded Nov 6, 2026	5,001-10,000	5,232 contacts →
	Exact match “The future belongs to companies that effectively translate agentic AI into value creation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Amaris Consulting Part Of Mantu	Exact match	Chêne-bourg, SwitzerlandHQ recorded Nov 6, 2026	5,001-10,000	5,223 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Eisneramper	Exact match	New York, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,410 contacts →
	Exact match “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	BDO Rise	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,490 contacts →
	Exact match “BDO RISE stands for round-the-clock international services for excellence and is dedicated to providing exceptional client service in the global economy to BDO USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Withum	Exact match	Princeton, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,484 contacts →
	Exact match “Withum is a forward-thinking, technology-driven advisory and accounting firm, helping clients to Be in a Position of Strength in today’s modern business landscape.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	PWC Luxembourg	Exact match	LuxembourgHQ recorded Nov 6, 2026	1,001-5,000	3,425 contacts →
	Exact match “PwC Luxembourg is the largest professional services firm in Luxembourg with over 3,600 people employed from 90 different countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Cherry Bekaert	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,265 contacts →
	Exact match “Cherry Bekaert is a top-ranked U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Wipfli	Exact match	Milwaukee, WI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,201 contacts →
	Exact match “Always advancing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	10001+	3,166 contacts →
	Exact match “Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Kpmg Ireland	Exact match	Dublin 2, IrelandHQ recorded Nov 6, 2026	1,001-5,000	2,988 contacts →
	Exact match “KPMG is a leading provider of professional services, offering a range of audit, tax and advisory services to a broad range of domestic and international clients across all sectors…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Pomeroy	Exact match	Hebron, KY, PalestineHQ recorded Nov 6, 2026	1,001-5,000	2,671 contacts →
	Exact match “Technology is mission-critical to your business so it must work, continuously.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	IT Group, INC	Exact match	Quezon City, PhilippinesHQ recorded Nov 6, 2026	n/a	2,554 contacts →
	Exact match “IT Group, Inc.(also known as ITG), is an Information Technology solutions partner that endeavors to provide growing organizations with solutions that meet the unique needs of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	PWC Sweden	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	1,001-5,000	2,312 contacts →
	Exact match “På PwC hjälper vi våra kunder att bygga förtroende och ställa om sin verksamhet för att öka konkurrenskraften.” Recorded in the RevenueBase company graph · Nov 6, 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 advisory firms”. 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 54,011 IT advisory firms worldwide

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IT advisory firms worldwide at a glance

As of Nov 6, 2026

32.0%Verified-email coverage

16.7Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

30,978

11-50

16,716

51-200

4,420

201-500

969

501-1,000

273

1,001-5,000

214

5,001-10,000

10001+

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 advisory firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT advisory firms” 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 288,458 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 November 6, 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 advisory firms by location

294 lists · largest first

Every IT advisory 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 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 advisory firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT advisory firms are there worldwide?

RevenueBase identified 54,011 company matches for IT advisory firms worldwide as of November 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?

Kpmg India tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most IT advisory firms?

The United States leads with 11,014 companies, followed by India (5,022) and Brazil (2,947). Every IT advisory firms list by country and city is linked on this page.

Which city has the most IT advisory firms?

London leads with 885 company records, followed by Sao Paulo (721) and Dubai (499).

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 288,458 professional contacts with verified work emails tracked across these 54,011 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 November 6, 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.