Company lists · Data refreshed September 2026

Top 22 IT consulting firms based in the United States

Name: 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 4, 2026 29,064 companies tracked

RevenueBase identified 29,064 IT consulting firms headquartered in the United States as of September 2026 and tracks 980,964 professional contacts across them, including 288,625 with verified work emails and 183,740 with mobile numbers. New York is the largest hub.

This list covers IT consulting firms headquartered in the United States, 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

29,064Companies

980,964Contacts tracked

288,625Verified emails

183,740Mobile numbers

Unlock all 29,064 companies Free signup · no credit card · 500 free credits

The 22 largest IT consulting firms based in the United States

Ranked by team size

Top 22 of 29,064 IT consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	DXC TechnologyPartial evidence	Ashburn, VA, United StatesHQ checked Sep 4, 2026	10001+	82,827
	“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Source: company website · checked Sep 4, 2026
2	KyndrylIndirect evidence	New York City, NY, United StatesHQ checked Sep 4, 2026	10001+	46,259
	“We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.” Source: company website · checked Sep 4, 2026
3	EXLPartial evidence	New York, NJ, United StatesHQ checked Sep 4, 2026	10001+	40,360
	“Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Source: company website · checked Sep 4, 2026
4	CDWIndirect evidence	Vernon Hills, IL, United StatesHQ checked Sep 4, 2026	10001+	13,120
	“At CDW, we know how to make technology work so people can do great things.” Source: company website · checked Sep 4, 2026
5	GuidehouseIndirect evidence	Mclean, SD, United StatesHQ checked Sep 4, 2026	10001+	12,933
	“Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Source: company website · checked Sep 4, 2026
6	Infinite Computer SolutionsIndirect evidence	Rockville, MD, United StatesHQ checked Sep 4, 2026	10001+	12,923
	“Infinite is a.” Source: company website · checked Sep 4, 2026
7	Apex SystemsIndirect evidence	Glen Allen, VA, United StatesHQ checked Sep 4, 2026	1,001-5,000	12,222
	“Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Source: company website · checked Sep 4, 2026
8	MovateIndirect evidence	Plano, TX, United StatesHQ checked Sep 4, 2026	10001+	12,175
	“Movate is a digital technology and customer experience services company committed to disrupting the industry with boundless agility, human-centered innovation, and relentless…” Source: company website · checked Sep 4, 2026
9	SlalomPartial evidence	Seattle, CA, United StatesHQ checked Sep 4, 2026	10001+	9,963
	“Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Source: company website · checked Sep 4, 2026
10	World Wide TechnologyIndirect evidence	Maryland Heights, AK, United StatesHQ checked Sep 4, 2026	10001+	9,138
	“We are thinkers and doers.” Source: company website · checked Sep 4, 2026
11	HTC Global ServicesIndirect evidence	Troy, MI, United StatesHQ checked Sep 4, 2026	10001+	8,895
	“HTC Global Services Inc, founded in 1990, headquartered in Troy, Michigan, is a global provider of Information Technology and Business Process Services and Solutions.” Source: company website · checked Sep 4, 2026
12	ExperisIndirect evidence	Milwaukee, GA, United StatesHQ checked Sep 4, 2026	10001+	7,981
	“Experis® is a global leader in technology services, helping organizations shorten the distance between innovation and business impact in a digital world.” Source: company website · checked Sep 4, 2026
13	AricentIndirect evidence	Santa Clara, CA, United StatesHQ checked Sep 4, 2026	10001+	4,317
	“Aricent is now Altran, delivering industry innovations at future speed.” Source: company website · checked Sep 4, 2026
14	ETEAMIndirect evidence	Somerset, CA, United StatesHQ checked Sep 4, 2026	n/a	3,271
	“For over 25 years, eTeam has been trusted by global organizations to lead high-stakes programs where execution matters as much as strategy.” Source: company website · checked Sep 4, 2026
15	WithumIndirect evidence	Princeton, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,264
	“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.” Source: company website · checked Sep 4, 2026
16	Visionet Systems INCIndirect evidence	Cranbury, NJ, United StatesHQ checked Sep 4, 2026	10001+	3,113
	“Visionet is a premier digital technology solutions company built on the premise of disruptive innovation.” Source: company website · checked Sep 4, 2026
17	Genpact Headstrong Capital MarketsStrong evidence	Reston, VA, United StatesHQ checked Sep 4, 2026	10001+	3,102
	“Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Source: company website · checked Sep 4, 2026
18	AHEADIndirect evidence	Chicago, WI, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,990
	“AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Source: company website · checked Sep 4, 2026
19	Oxford Global ResourcesIndirect evidence	Beverly, VA, United StatesHQ checked Sep 4, 2026	501-1,000	2,561
	“Oxford Global Resources delivers tailored solutions for any technical challenges you are facing using our partnership-first approach.” Source: company website · checked Sep 4, 2026
20	People Tech Group INCIndirect evidence	Redmond, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,409
	“People Tech Group is a leading Enterprise Solutions, Digital Transformation, Data Intelligence, and Modern Operation services provider.” Source: company website · checked Sep 4, 2026
21	BeyondsoftStrong evidence	Bellevue, WA, United StatesHQ checked Sep 4, 2026	501-1,000	2,358
	“Beyondsoft Consulting is a leading global mid-sized business IT and consulting company that combines modern technologies and proven methodologies to tailor solutions that move…” Source: company website · checked Sep 4, 2026
22	CTGPartial evidence	Amherst, NY, United StatesHQ checked Sep 4, 2026	5,001-10,000	2,259
	“CTG, a Cegeka company, is at the forefront of digital transformation, offering innovative IT solutions and services that accelerate your strategy and project momentum.” Source: company website · checked Sep 4, 2026

Showing 22 of 29,064 IT consulting firms based in the United States

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IT consulting firms based in the United States at a glance

As of Sep 4, 2026

11-50Median size (employees)

New YorkLargest hub · 1002 HQs

183,740Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

14,225

11-50

9,102

51-200

4,107

201-500

948

501-1,000

306

1,001-5,000

200

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

24,145

61–90

155,998

90–180

103,564

180+

4,918

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 firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT consulting firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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 an evidence 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, 288,625 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 4, 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 firms by metro

Frequently asked

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

RevenueBase identified 29,064 IT consulting firms headquartered in the United States 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?

DXC Technology, headquartered in Ashburn, tops this list with the largest team on record.

Which city has the most IT consulting firms?

New York leads with 1002 headquartered companies, followed by Houston (627) and Dallas (504).

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 288,625 verified decision-maker contacts tracked across these 29,064 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 4, 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.