Company lists · Data refreshed September 2026

Top 25 IT consulting agencies based in the United States

Name: IT consulting agencies 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 26,147 companies tracked

RevenueBase identified 26,147 company matches for IT consulting agencies associated with the United States as of September 2026 and tracks 839,322 professional contacts across them, including 245,497 with verified work emails and 229,638 with mobile numbers. New York is the largest hub.

This list covers company matches for IT consulting agencies 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

26,147Companies

839,322Contacts tracked

245,497Verified emails

229,638Mobile numbers

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

The 25 largest IT consulting agencies based in the United States

Ranked by team size

Top 25 of 26,147 company matches for IT consulting agencies 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	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
3	General Dynamics Information Technology	Exact match	Falls Church, VA, United StatesHQ recorded Sep 27, 2026	10001+	23,974 contacts →
	Exact match “GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	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
5	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
6	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
7	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
8	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	9,697 contacts →
	Exact match “MANTECH is more than a technology company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	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
10	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
11	Comcast Business	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 27, 2026	10001+	8,242 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	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
13	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
14	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
15	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
16	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
17	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
18	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
19	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
20	AHEAD	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,989 contacts →
	Exact match “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	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
22	Oxford Global Resources	Exact match	Beverly, MA, United StatesHQ recorded Sep 27, 2026	501-1,000	2,564 contacts →
	Exact match “Oxford Global Resources delivers tailored solutions for any technical challenges you are facing using our partnership-first approach.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Compunnel INC	Exact match	Princeton, NJ, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24	People Tech Group INC	Exact match	Redmond, WA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
25	Beyondsoft	Exact match	Bellevue, WA, United StatesHQ recorded Sep 27, 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 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 agencies”. 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 26,147 IT consulting agencies based in the United States

See the full list, filter by size, metro and specialty, and access 245,497 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT consulting agencies based in the United States at a glance

As of Sep 27, 2026

29.2%Verified-email coverage

27.4%Mobile-number coverage

32.1Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

12,926

11-50

8,245

51-200

3,538

201-500

844

501-1,000

313

1,001-5,000

166

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

125,5830–30

85,29331–60

6,20861–90

15090–180

4,787180+

Company record updated

Median 90.0d

00–30

130,13331–60

255,72861–90

305,54090–180

41,543180+

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 agencies” 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 245,497 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 agencies 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 agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 26,147 company matches for IT consulting agencies 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 agencies?

New York leads with 830 company records, followed by Houston (529) and Atlanta (440).

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 245,497 professional contacts with verified work emails tracked across these 26,147 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.