Company lists · Data refreshed September 2026

Top 25 IT consulting service providers based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 30,347 companies tracked

RevenueBase identified 30,347 company matches for IT consulting service providers associated with the United States as of September 2026 and tracks 897,853 professional contacts across them, including 264,594 with verified work emails and 196,748 with mobile numbers. New York is the largest hub.

This list covers company matches for IT consulting service providers 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 27, 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 27, 2026 How this list was built

30,347Companies

897,853Contacts tracked

264,594Verified emails

196,748Mobile numbers

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The 25 largest IT consulting service providers based in the United States

Ranked by team size

Top 25 of 30,347 company matches for IT consulting service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 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 27, 2026 · View company records in RevenueBase
2	Kyndryl	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	10001+	45,903 contacts →
	Exact match “We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Virtusa	Exact match	Southborough, MA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
4	Teksystems	Exact match	Hanover, MD, United StatesHQ recorded Sep 27, 2026	10001+	24,693 contacts →
	Exact match “We’re TEKsystems and TEKsystems Global Services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	NTT Data North America	Exact match	Plano, TX, United StatesHQ recorded Sep 27, 2026	10001+	22,390 contacts →
	Exact match “NTT DATA, Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	CDW	Exact match	Vernon Hills, IL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
7	Infinite Computer Solutions	Exact match	Rockville, MD, United StatesHQ recorded Sep 27, 2026	10001+	12,891 contacts →
	Exact match “Infinite is a.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
9	Apex Systems	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
10	Slalom	Exact match	Seattle, WA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
11	ICF	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	9,459 contacts →
	Exact match “ICF is a leading global solutions and technology provider.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	World Wide Technology	Exact match	Maryland Heights, MO, United StatesHQ recorded Sep 27, 2026	10001+	9,184 contacts →
	Exact match “We are thinkers and doers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Ci&t	Exact match	New York, NY, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
14	Experis	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 27, 2026	10001+	7,984 contacts →
	Exact match “Experis® is a global leader in technology services, helping organizations shorten the distance between innovation and business impact in a digital world.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Yash Technologies	Exact match	East Moline, IL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
16	Compucom	Exact match	Fort Mill, SC, United StatesHQ recorded Sep 27, 2026	5,001-10,000	7,753 contacts →
	Exact match “Unleash Your Digital Workplace Potential with Compucom To be at the forefront of your industry, having the right technology is non-negotiable.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	SHI International Corp	Exact match	Somerset, NJ, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
18	Aricent	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 27, 2026	10001+	4,302 contacts →
	Exact match “Aricent is now Altran, delivering industry innovations at future speed.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Isoftstone	Exact match	Plano, TX, United StatesHQ recorded Sep 27, 2026	10001+	4,041 contacts →
	Exact match “iSoftStone is a global IT service and consulting company that creates value and drives success through technology solutions, service excellence, and digital innovation.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Presidio	Exact match	New York, NY, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
21	Ensono	Exact match	Downers Grove, IL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
22	Visionet Systems INC	Exact match	Cranbury, NJ, United StatesHQ recorded Sep 27, 2026	10001+	3,119 contacts →
	Exact match “Visionet is a premier digital technology solutions company built on the premise of disruptive innovation.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24	VEE Technologies	Exact match	Decatur, GA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	2,933 contacts →
	Exact match “Vee Technologies is a global consulting and professional services organization delivering specialized, technology-enabled solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Speridian Technologies	Exact match	Albuquerque, NM, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,619 contacts →
	Exact match “Speridian Technologies is a global consulting and technology services firm that helps enterprises and public sector organizations modernize operations, enhance customer experience…” Recorded in the RevenueBase company graph · Sep 27, 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 consulting service providers”. 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 30,347 IT consulting service providers based in the United States

See the full list, filter by size, metro and specialty, and access 264,594 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT consulting service providers based in the United States at a glance

As of Sep 27, 2026

29.5%Verified-email coverage

21.9%Mobile-number coverage

29.6Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

15,434

11-50

9,472

51-200

3,887

201-500

926

501-1,000

323

1,001-5,000

185

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 30.0d

149,9160–30

101,12231–60

7,74861–90

25390–180

5,555180+

Company record updated

Median 90.0d

00–30

146,38831–60

311,34561–90

389,68890–180

50,432180+

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 consulting service providers” 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 264,594 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 27, 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 consulting service providers 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 consulting service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 30,347 company matches for IT consulting service providers 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 IT consulting service providers?

New York leads with 985 company records, followed by Houston (636) and Dallas (488).

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 264,594 professional contacts with verified work emails tracked across these 30,347 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 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 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.