Company lists · Data refreshed September 2026

Top 25 IT systems integrators based in the United States

Name: IT systems integrators based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,054 companies tracked

RevenueBase identified 6,054 IT systems integrators headquartered in the United States as of September 2026 and tracks 194,274 professional contacts across them, including 75,331 with verified work emails. New York is the largest hub.

This list covers IT systems integrators 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

6,054Companies

194,274Contacts tracked

75,331Verified emails

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The 25 largest IT systems integrators based in the United States

Ranked by team size

Top 25 of 6,054 IT systems integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT systems integrators: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Insight	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 28, 2026	10001+	12,899 contacts →
	Indirect evidence “Insight Enterprises, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
2	Comcast Business	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	10001+	8,242 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
3	SHI International Corp	Indirect evidence	Somerset, NJ, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,734 contacts →
	Indirect evidence “Think of SHI as your personal technology concierge.” Source: RevenueBase Database · checked Sep 28, 2026
4	Convergint	Strong evidence	Hoffman Estates, IL, United StatesHQ checked Sep 28, 2026	10001+	5,707 contacts →
	Strong evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 28, 2026
5	Presidio	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,798 contacts →
	Indirect evidence “At Presidio, speed and quality meet technology and innovation.” Source: RevenueBase Database · checked Sep 28, 2026
6	Black BOX	Partial evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,667 contacts →
	Partial evidence “Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…” Source: RevenueBase Database · checked Sep 28, 2026
7	Hitachi Digital Services	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,691 contacts →
	Strong evidence “Hitachi Digital Services, a wholly owned subsidiary of Hitachi, Ltd, is a global systems integrator powering mission-critical platforms with people and technology.” Source: RevenueBase Database · checked Sep 28, 2026
8	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,800 contacts →
	Indirect evidence “IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…” Source: RevenueBase Database · checked Sep 28, 2026
9	ASM Research	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,568 contacts →
	Partial evidence “ASM Research, an Accenture Federal Services Company, is an information solutions integrator and a leading provider of innovative technology solutions and advanced analytical…” Source: RevenueBase Database · checked Sep 28, 2026
10	Trace3	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 28, 2026
11	Engility Corporation	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,245 contacts →
	Partial evidence “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Source: RevenueBase Database · checked Sep 28, 2026
12	Rovisys	Strong evidence	Aurora, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,159 contacts →
	Strong evidence “As one of the world's largest independent systems integrators, RoviSys delivers comprehensive automation, digital transformation, manufacturing execution (MES), Industrial AI…” Source: RevenueBase Database · checked Sep 28, 2026
13	Fulcrum Digital INC	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,139 contacts →
	Strong evidence “Founded in Fulcrum Digital is a global system integrator driving transformative results through AI-powered solutions.” Source: RevenueBase Database · checked Sep 28, 2026
14	GDT	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	501-1,000	1,032 contacts →
	Partial evidence “As an award-winning, global IT solutions provider, we are changing the nature of transformation.” Source: RevenueBase Database · checked Sep 28, 2026
15	Prime Controls	Indirect evidence	Lewisville, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	857 contacts →
	Indirect evidence “Prime Controls was established as a Main Automation Contractor to provide customers a sole source solution for Industrial Automation services and products.” Source: RevenueBase Database · checked Sep 28, 2026
16	Systems Engineering Services Corporation Sesc	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	747 contacts →
	Partial evidence “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Source: RevenueBase Database · checked Sep 28, 2026
17	RED River	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	501-1,000	709 contacts →
	Indirect evidence “Red River brings together the ideal combination of talent, partners and products to disrupt the status quo in technology and drive success for business and government in ways…” Source: RevenueBase Database · checked Sep 28, 2026
18	Bell Integrator	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	708 contacts →
	Partial evidence “Bell Integrator – крупный системный интегратор, входит в ГК Softline и предоставляет технологические услуги и инновационные сервисы.” Source: RevenueBase Database · checked Sep 28, 2026
19	STG INC	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	700 contacts →
	Partial evidence “SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors.” Source: RevenueBase Database · checked Sep 28, 2026
20	Heartland Business Systems	Indirect evidence	Little Chute, WI, United StatesHQ checked Sep 28, 2026	501-1,000	693 contacts →
	Indirect evidence “HBS is your full-service technology solutions partner.” Source: RevenueBase Database · checked Sep 28, 2026
21	Vision Technologies	Partial evidence	Glen Burnie, MD, United StatesHQ checked Sep 28, 2026	501-1,000	686 contacts →
	Partial evidence “Vision Technologies is an Information Technology (IT) solutions and services company.” Source: RevenueBase Database · checked Sep 28, 2026
22	NIC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	n/a	581 contacts →
	Partial evidence “NIC has been providing IT Solutions, Cybersecurity, and Cloud Services for businesses and organizations for the past two decades.” Source: RevenueBase Database · checked Sep 28, 2026
23	Netsync	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	543 contacts →
	Indirect evidence “NETSYNC is an NMSDC-certified minority business enterprise (MBE), federally certified woman-owned small business (WOSB), and HUB-certified value-added reseller (VAR), specializing…” Source: RevenueBase Database · checked Sep 28, 2026
24	Mythics	Indirect evidence	Virginia Beach, VA, United StatesHQ checked Sep 28, 2026	501-1,000	540 contacts →
	Indirect evidence “About Mythics Mythics brings together three of the most trusted Oracle partners-Mythics, SpearMC, and SmartERP - to deliver one expert partner across SaaS, PaaS, IaaS, and…” Source: RevenueBase Database · checked Sep 28, 2026
25	Ntiva, INC	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	501-1,000	505 contacts →
	Indirect evidence “At Ntiva, growing people (our employees, partners, and clients) is our mission.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT systems integrators. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names IT systems integrators.
Partial evidence: Its own public description names part of IT systems integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT systems integrators. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 6,054 IT systems integrators based in the United States

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IT systems integrators based in the United States at a glance

As of Sep 28, 2026

38.8%Verified-email coverage

32.1Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,589

11-50

2,287

51-200

856

201-500

184

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,054 companies.

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 systems integrators, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 systems integrators”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT systems integrators), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among IT systems integrators, 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 its RevenueBase Smart Search 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, 75,331 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 28, 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 systems integrators by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT systems integrators, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many IT systems integrators are there based in the United States?

RevenueBase identified 6,054 IT systems integrators 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?

Insight, headquartered in Chandler, tops this list with the largest team on record.

Which city has the most IT systems integrators?

New York leads with 173 headquartered companies, followed by Houston (133) and Chicago (79).

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 75,331 verified decision-maker contacts tracked across these 6,054 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 28, 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 Smart Search, 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.