Company lists · Data refreshed September 2026

Top 25 IT advisory consulting firms based in the United States

Name: IT advisory consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 17,527 companies tracked

RevenueBase identified 17,527 company matches for IT advisory consulting firms associated with the United States as of September 2026 and tracks 748,551 professional contacts across them, including 262,719 with verified work emails and 187,306 with mobile numbers. New York is the largest hub.

This list covers company matches for IT advisory consulting firms associated with the United States, 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 26, 2026.

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 26, 2026 How this list was built

17,527Companies

748,551Contacts tracked

262,719Verified emails

187,306Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT advisory consulting firms based in the United States

Ranked by team size

Top 25 of 17,527 company matches for IT advisory consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 26, 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	EXL	Exact match	New York, NY, United StatesHQ recorded Sep 26, 2026	10001+	40,100 contacts →
	Exact match “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
2	UST	Exact match	Aliso Viejo, CA, United StatesHQ recorded Sep 26, 2026	10001+	34,875 contacts →
	Exact match “UST is a global digital transformation solutions provider.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
3	Virtusa	Exact match	Southborough, MA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
4	Teksystems	Exact match	Hanover, MD, United StatesHQ recorded Sep 26, 2026	10001+	24,693 contacts →
	Exact match “We’re TEKsystems and TEKsystems Global Services.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
5	Insight	Exact match	Chandler, AZ, United StatesHQ recorded Sep 26, 2026	10001+	12,899 contacts →
	Exact match “Insight Enterprises, Inc.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
6	Synechron	Exact match	New York, NY, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
7	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	10001+	12,815 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 · Sep 26, 2026 · View company records in RevenueBase
8	Apex Systems	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
9	BDO USA	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	10001+	10,078 contacts →
	Exact match “At BDO, our success is measured by what we achieve together.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
10	CLA Cliftonlarsonallen	Exact match	Bellevue, WA, United StatesHQ recorded Sep 26, 2026	5,001-10,000	9,567 contacts →
	Exact match “CLA exists to create opportunities for our clients, our people, and our communities through industry-focused wealth advisory, outsourcing, audit, tax, and consulting services.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
11	World Wide Technology	Exact match	Maryland Heights, MO, United StatesHQ recorded Sep 26, 2026	10001+	9,184 contacts →
	Exact match “We are thinkers and doers.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
12	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 26, 2026	5,001-10,000	8,779 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 · Sep 26, 2026 · View company records in RevenueBase
13	Ci&t	Exact match	New York, NY, United StatesHQ recorded Sep 26, 2026	5,001-10,000	8,037 contacts →
	Exact match “We are your global partner in tech-integrated business solutions, turning AI ambition into measurable business impact.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
14	Yash Technologies	Exact match	East Moline, IL, United StatesHQ recorded Sep 26, 2026	5,001-10,000	7,769 contacts →
	Exact match “YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
15	Kearney	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	5,001-10,000	6,978 contacts →
	Exact match “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
16	SHI International Corp	Exact match	Somerset, NJ, United StatesHQ recorded Sep 26, 2026	5,001-10,000	6,734 contacts →
	Exact match “Think of SHI as your personal technology concierge.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
17	CBIZ	Exact match	Independence, OH, United StatesHQ recorded Sep 26, 2026	10001+	6,369 contacts →
	Exact match “CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
18	KROLL	Exact match	New York, NY, United StatesHQ recorded Sep 26, 2026	5,001-10,000	6,287 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 · Sep 26, 2026 · View company records in RevenueBase
19	Aricent	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 26, 2026	10001+	4,302 contacts →
	Exact match “Aricent is now Altran, delivering industry innovations at future speed.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
20	Eisneramper	Exact match	New York, NY, United StatesHQ recorded Sep 26, 2026	1,001-5,000	4,199 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 · Sep 26, 2026 · View company records in RevenueBase
21	Presidio	Exact match	New York, NY, United StatesHQ recorded Sep 26, 2026	1,001-5,000	3,798 contacts →
	Exact match “At Presidio, speed and quality meet technology and innovation.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
22	Eide Bailly LLP	Exact match	United StatesHQ recorded Sep 26, 2026	1,001-5,000	3,643 contacts →
	Exact match “We’re Eide Bailly (I’d bay-lee), a business advisory, accounting and technology firm built with our clients in mind.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
23	Withum	Exact match	Princeton, NJ, United StatesHQ recorded Sep 26, 2026	1,001-5,000	3,326 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 · Sep 26, 2026 · View company records in RevenueBase
24	ETEAM	Exact match	Somerset, NJ, United StatesHQ recorded Sep 26, 2026	n/a	3,285 contacts →
	Exact match “For over 25 years, eTeam has been trusted by global organizations to lead high-stakes programs where execution matters as much as strategy.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
25	Ensono	Exact match	Downers Grove, IL, United StatesHQ recorded Sep 26, 2026	1,001-5,000	3,247 contacts →
	Exact match “Ensono is an expert technology adviser and managed service provider.” Recorded in the RevenueBase company graph · Sep 26, 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 consulting 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 17,527 IT advisory consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 262,719 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT advisory consulting firms based in the United States at a glance

As of Sep 26, 2026

35.1%Verified-email coverage

25.0%Mobile-number coverage

42.7Average contacts per company

1-10Median size (employees)

4.7%Largest-city concentration · New York

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

9,338

11-50

4,880

51-200

2,201

201-500

594

501-1,000

214

1,001-5,000

190

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 29.0d

170,2470–30

82,74431–60

5,76061–90

21590–180

3,753180+

Company record updated

Median 88.0d

00–30

145,86731–60

303,96761–90

254,15790–180

44,560180+

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.
What qualifies: Company records associated with the United States whose business descriptions match “IT advisory consulting 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 262,719 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 26, 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 consulting firms by metro

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

How many IT advisory consulting firms are there based in the United States?

RevenueBase identified 17,527 company matches for IT advisory consulting firms associated with the United States 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?

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

Which city has the most IT advisory consulting firms?

New York leads with 831 company records, followed by Houston (403) and Chicago (396).

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 262,719 professional contacts with verified work emails tracked across these 17,527 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 26, 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.