Company lists · Data refreshed September 2026

Top 25 IT consultancy companies based in the United States

Name: IT consultancy companies 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 20,528 companies tracked

RevenueBase identified 20,528 company matches for IT consultancy companies associated with the United States as of September 2026 and tracks 681,564 professional contacts across them, including 190,129 with verified work emails and 134,670 with mobile numbers. New York is the largest hub.

This list covers company matches for IT consultancy companies 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

20,528Companies

681,564Contacts tracked

190,129Verified emails

134,670Mobile numbers

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

The 25 largest IT consultancy companies based in the United States

Ranked by team size

Top 25 of 20,528 company matches for IT consultancy companies 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	DXC Technology	Exact match	Ashburn, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
2	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
3	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
4	NTT Data North America	Exact match	Plano, TX, United StatesHQ recorded Sep 26, 2026	10001+	22,390 contacts →
	Exact match “NTT DATA, Inc.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
5	CDW	Exact match	Vernon Hills, IL, United StatesHQ recorded Sep 26, 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 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	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
10	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
11	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
12	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
13	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
14	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
15	Isoftstone	Exact match	Plano, TX, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
16	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
17	Iris Software INC	Exact match	Edison, NJ, United StatesHQ recorded Sep 26, 2026	1,001-5,000	3,421 contacts →
	Exact match “Iris Software has been a trusted software engineering partner to several Fortune 500 companies for over three decades.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
18	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
19	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
20	Visionet Systems INC	Exact match	Cranbury, NJ, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
21	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
22	VEE Technologies	Exact match	Decatur, GA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
23	Speridian Technologies	Exact match	Albuquerque, NM, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
24	People Tech Group INC	Exact match	Redmond, WA, United StatesHQ recorded Sep 26, 2026	1,001-5,000	2,434 contacts →
	Exact match “People Tech Group is a leading Enterprise Solutions, Digital Transformation, Data Intelligence, and Modern Operation services provider.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
25	Beyondsoft	Exact match	Bellevue, WA, United StatesHQ recorded Sep 26, 2026	501-1,000	2,359 contacts →
	Exact match “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…” 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 consultancy companies”. 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 20,528 IT consultancy companies based in the United States

See the full list, filter by size, metro and specialty, and access 190,129 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT consultancy companies based in the United States at a glance

As of Sep 26, 2026

27.9%Verified-email coverage

19.8%Mobile-number coverage

33.2Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · New York

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

9,683

11-50

6,513

51-200

3,092

201-500

731

501-1,000

256

1,001-5,000

154

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

200,0630–30

95,75631–60

6,73261–90

25590–180

6,578180+

Company record updated

Median 89.0d

00–30

168,12331–60

416,23661–90

408,54490–180

59,239180+

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 consultancy companies” 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 190,129 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 consultancy companies 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 consultancy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT consultancy companies are there based in the United States?

RevenueBase identified 20,528 company matches for IT consultancy companies 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 consultancy companies?

New York leads with 704 company records, followed by Houston (470) and Dallas (367).

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 190,129 professional contacts with verified work emails tracked across these 20,528 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.