Company lists · Data refreshed September 2026

Top 25 Business IT consulting firms based in the United States

Name: Business IT 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 23, 2026 24,219 companies tracked

RevenueBase identified 24,219 company matches for business IT consulting firms associated with the United States as of September 2026 and tracks 508,115 professional contacts across them, including 171,200 with verified work emails and 146,983 with mobile numbers. New York is the largest hub.

This list covers company matches for business IT 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 23, 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 23, 2026 How this list was built

24,219Companies

508,115Contacts tracked

171,200Verified emails

146,983Mobile numbers

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

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

Ranked by team size

Top 25 of 24,219 company matches for business IT consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 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	DXC Technology	Exact match	Ashburn, VA, United StatesHQ recorded Sep 23, 2026	10001+	82,768 contacts →
	Exact match “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	CDW	Exact match	Vernon Hills, IL, United StatesHQ recorded Sep 23, 2026	10001+	13,155 contacts →
	Exact match “At CDW, we know how to make technology work so people can do great things.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 23, 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 23, 2026 · View company records in RevenueBase
4	Apex Systems	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 23, 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 23, 2026 · View company records in RevenueBase
5	Slalom	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	10001+	10,032 contacts →
	Exact match “Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	World Wide Technology	Exact match	Maryland Heights, MO, United StatesHQ recorded Sep 23, 2026	10001+	9,184 contacts →
	Exact match “We are thinkers and doers.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 23, 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 23, 2026 · View company records in RevenueBase
8	Comcast Business	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 23, 2026	10001+	8,242 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Yash Technologies	Exact match	East Moline, IL, United StatesHQ recorded Sep 23, 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 23, 2026 · View company records in RevenueBase
10	SHI International Corp	Exact match	Somerset, NJ, United StatesHQ recorded Sep 23, 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 23, 2026 · View company records in RevenueBase
11	Presidio	Exact match	New York, NY, United StatesHQ recorded Sep 23, 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 23, 2026 · View company records in RevenueBase
12	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,206 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Sep 23, 2026	10001+	3,109 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 · Sep 23, 2026 · View company records in RevenueBase
14	Compunnel INC	Exact match	Princeton, NJ, United StatesHQ recorded Sep 23, 2026	5,001-10,000	2,502 contacts →
	Exact match “Compunnel serves as a global partner for talent, digital, and cybersecurity solutions, designed to help enterprises staff critical roles, modernize technology, and strengthen…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	CTG	Exact match	Amherst, NY, United StatesHQ recorded Sep 23, 2026	5,001-10,000	2,264 contacts →
	Exact match “CTG, a Cegeka company, is at the forefront of digital transformation, offering innovative IT solutions and services that accelerate your strategy and project momentum.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 23, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	CBTS	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 23, 2026	1,001-5,000	2,211 contacts →
	Exact match “CBTS serves enterprise and midmarket clients in all industries across North America.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Tech Mahindra	Exact match	Streetman, TX, United StatesHQ recorded Sep 23, 2026	n/a	1,860 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Eplus INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	1,749 contacts →
	Exact match “ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	DMI	Exact match	Mclean, VA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	1,683 contacts →
	Exact match “DMI is a leading provider of digital services and technology solutions with a focus on end-to-end managed services, including managed mobility, cloud, cybersecurity, network…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	CEI	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 23, 2026	501-1,000	1,391 contacts →
	Exact match “In today’s technology-driven world, the mandate of transformation represents both challenges and opportunities.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	V Group INC	Exact match	Cranbury, NJ, United StatesHQ recorded Sep 23, 2026	n/a	1,347 contacts →
	Exact match “Since V Group Inc.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	V-Soft Consulting Group, INC	Exact match	Louisville, KY, United StatesHQ recorded Sep 23, 2026	1,001-5,000	1,221 contacts →
	Exact match “V-Soft Consulting, an innovative corporation specializing in Information Technology consulting; including staffing, digital, and infrastructure solutions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	W3global	Exact match	Frisco, TX, United StatesHQ recorded Sep 23, 2026	501-1,000	1,149 contacts →
	Exact match “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Recorded in the RevenueBase company graph · Sep 23, 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 “business IT 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 24,219 business IT consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 171,200 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 23, 2026

33.7%Verified-email coverage

28.9%Mobile-number coverage

21.0Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · New York

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

15,038

11-50

6,084

51-200

2,249

201-500

497

501-1,000

178

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 26.0d

126,5320–30

38,84731–60

2,33961–90

12590–180

3,357180+

Company record updated

Median 86.0d

00–30

121,90831–60

230,25461–90

128,76390–180

27,190180+

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 “business IT 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 171,200 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 23, 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.

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

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

RevenueBase identified 24,219 company matches for business IT 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?

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

Which city has the most business IT consulting firms?

New York leads with 860 company records, followed by Houston (499) and Atlanta (464).

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 171,200 professional contacts with verified work emails tracked across these 24,219 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 23, 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.