Company lists · Data refreshed September 2026

Top 25 System integration companies based in the United States

Name: System integration 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 22, 2026 4,754 companies tracked

RevenueBase identified 4,754 system integration companies headquartered in the United States as of September 2026 and tracks 102,959 professional contacts across them, including 42,240 with verified work emails. New York is the largest hub.

This list covers system integration companies 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 22, 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 22, 2026 86% judged on-target in blind review

4,754Companies

102,959Contacts tracked

42,240Verified emails

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The 25 largest system integration companies based in the United States

Ranked by team size

Top 25 of 4,754 system integration companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to system integration companies: 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	SHI International Corp	Indirect evidence	Somerset, NJ, United StatesHQ checked Sep 22, 2026	5,001-10,000	6,734 contacts →
	Indirect evidence “Think of SHI as your personal technology concierge.” Source: RevenueBase Database · checked Sep 22, 2026
2	Convergint	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 22, 2026	10001+	5,707 contacts →
	Partial evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 22, 2026
3	Black BOX	Strong evidence	Plano, TX, United StatesHQ checked Sep 22, 2026	1,001-5,000	3,667 contacts →
	Strong 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 22, 2026
4	Hitachi Digital Services	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,691 contacts →
	Partial 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 22, 2026
5	GURU	Strong evidence	Rockville, MD, United StatesHQ checked Sep 22, 2026	n/a	1,906 contacts →
	Strong evidence “Established in 1995, GURU is an IT managed service provider that specializes in infrastructure support, systems integration, data architecture, data hosting, and cloud services.” Source: RevenueBase Database · checked Sep 22, 2026
6	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 22, 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 22, 2026
7	JR Automation	Partial evidence	Holland, MI, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,386 contacts →
	Partial evidence “JR Automation is a leading global integrator of custom automated systems for manufacturing and distribution environments around the world.” Source: RevenueBase Database · checked Sep 22, 2026
8	Rovisys	Partial evidence	Aurora, OH, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,159 contacts →
	Partial 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 22, 2026
9	Convergix Automation Solutions	Indirect evidence	Auburn Hills, MI, United StatesHQ checked Sep 22, 2026	501-1,000	942 contacts →
	Indirect evidence “Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.” Source: RevenueBase Database · checked Sep 22, 2026
10	Prime Controls	Indirect evidence	Lewisville, TX, United StatesHQ checked Sep 22, 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 22, 2026
11	E Tech Group	Strong evidence	West Chester, OH, United StatesHQ checked Sep 22, 2026	501-1,000	610 contacts →
	Strong evidence “E Tech Group is one of the largest engineering and system integration firms in the United States.” Source: RevenueBase Database · checked Sep 22, 2026
12	Environmental AIR Systems	Indirect evidence	High Point, NC, United StatesHQ checked Sep 22, 2026	1,001-5,000	545 contacts →
	Indirect evidence “For generations, EAS Companies has been an innovative provider delivering complete solutions in mechanical, electrical, plumbing, building services, controls, and engineered…” Source: RevenueBase Database · checked Sep 22, 2026
13	Thermo Systems	Strong evidence	East Windsor, NJ, United StatesHQ checked Sep 22, 2026	201-500	455 contacts →
	Strong evidence “Thermo Systems is a full-service control systems integration partner, providing world-class automation solutions within the Energy, Life Sciences, and Mission Critical markets.” Source: RevenueBase Database · checked Sep 22, 2026
14	Technology Integration Group	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 22, 2026	201-500	455 contacts →
	Indirect evidence “Our Mission: TIG will earn its place as a trusted partner to our clients, providing only the highest level of service, value and advanced technology to power their strategic…” Source: RevenueBase Database · checked Sep 22, 2026
15	Fori Automation, LLC A Lincoln Electric Company	Strong evidence	Shelby Twp., MI, United StatesHQ checked Sep 22, 2026	501-1,000	447 contacts →
	Strong evidence “Fori Automation, LLC is a global leader in the design, build, and integration of custom material handling, assembly, testing, and welding systems.” Source: RevenueBase Database · checked Sep 22, 2026
16	SMS Data Products Group, INC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 22, 2026	501-1,000	445 contacts →
	Partial evidence “As a dynamic systems integrator, SMS offers proven solutions in engineering, operations, cybersecurity, and digital transformation.” Source: RevenueBase Database · checked Sep 22, 2026
17	Velociti	Indirect evidence	Riverside, MO, United StatesHQ checked Sep 22, 2026	201-500	410 contacts →
	Indirect evidence “Around here, we say it all started with an idea: What if we developed a new approach for designing, deploying and maintaining the technology that runs a business?” Source: RevenueBase Database · checked Sep 22, 2026
18	Tech Electronics	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 22, 2026	201-500	406 contacts →
	Indirect evidence “Since we opened our doors in 1963, relationships have been are our strength by putting people before products.” Source: RevenueBase Database · checked Sep 22, 2026
19	Advanced Systems Group, LLC	Partial evidence	Emeryville, CA, United StatesHQ checked Sep 22, 2026	201-500	383 contacts →
	Partial evidence “Advanced Systems Group (ASG) empowers creativity through technology for Media Creatives and Content Owners.” Source: RevenueBase Database · checked Sep 22, 2026
20	PAR Systems	Indirect evidence	Shoreview, MN, United StatesHQ checked Sep 22, 2026	501-1,000	379 contacts →
	Indirect evidence “From automated manufacturing of life saving medical devices, to safely dismantling Chernobyl, sending rockets into deep space, and adaptive manufacturing of aerospace components…” Source: RevenueBase Database · checked Sep 22, 2026
21	Njvc-Llc	Indirect evidence	Lorton, VA, United StatesHQ checked Sep 22, 2026	201-500	355 contacts →
	Indirect evidence “NJVC® provides customers with innovative solutions to critical mission, business and technology challenges.” Source: RevenueBase Database · checked Sep 22, 2026
22	Linx Lllp	Partial evidence	Denver, CO, United StatesHQ checked Sep 22, 2026	501-1,000	352 contacts →
	Partial evidence “LINX is a technology integrator specializing in the design, installation and support of network cabling, multimedia, security and wireless systems.” Source: RevenueBase Database · checked Sep 22, 2026
23	ITC Federal	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 22, 2026	501-1,000	344 contacts →
	Indirect evidence “Integrity is at the core of everything we do at ITC Federal.” Source: RevenueBase Database · checked Sep 22, 2026
24	Comnet Communications	Indirect evidence	Bethel, CT, United StatesHQ checked Sep 22, 2026	201-500	343 contacts →
	Indirect evidence “ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.” Source: RevenueBase Database · checked Sep 22, 2026
25	Groundswell	Partial evidence	Mclean, VA, United StatesHQ checked Sep 22, 2026	201-500	342 contacts →
	Partial evidence “Groundswell is a specialized, highly agile systems integrator delivering advanced technology solutions as a trusted mission partner to federal agencies.” Source: RevenueBase Database · checked Sep 22, 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: system integration companies. 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 system integration companies.
Partial evidence: Its own public description names part of system integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name system integration companies. 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 4,754 system integration companies based in the United States

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System integration companies based in the United States at a glance

As of Sep 22, 2026

41.0%Verified-email coverage

21.7Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,151

11-50

1,866

51-200

536

201-500

115

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 4,754 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 system integration companies, 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 “system integration companies”. 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 system integration companies), 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 system integration companies, 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, 42,240 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 22, 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.

System integration companies 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 system integration companies, 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 system integration companies are there based in the United States?

RevenueBase identified 4,754 system integration companies 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?

SHI International Corp, headquartered in Somerset, tops this list with the largest team on record.

Which city has the most system integration companies?

New York leads with 105 headquartered companies, followed by Houston (96) and Los Angeles (61).

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 42,240 verified decision-maker contacts tracked across these 4,754 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 22, 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.