Company lists · Data refreshed September 2026

Top 25 Systems integration services based in the United States

Name: Systems integration services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 4,851 companies tracked

RevenueBase identified 4,851 systems integration services headquartered in the United States as of September 2026 and tracks 122,069 professional contacts across them, including 43,007 with verified work emails. New York is the largest hub.

This list covers systems integration services 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 29, 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 29, 2026 86% judged on-target in blind review

4,851Companies

122,069Contacts tracked

43,007Verified emails

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The 25 largest systems integration services based in the United States

Ranked by team size

Top 25 of 4,851 systems integration services based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to systems integration services: 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 29, 2026	5,001-10,000	6,734 contacts →
	Indirect evidence “Think of SHI as your personal technology concierge.” Source: RevenueBase Database · checked Sep 29, 2026
2	Convergint	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 29, 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 29, 2026
3	Black BOX	Strong evidence	Plano, TX, United StatesHQ checked Sep 29, 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 29, 2026
4	Hitachi Digital Services	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 29, 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 29, 2026
5	BOOMI	Indirect evidence	Conshohocken, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,491 contacts →
	Indirect evidence “Connect everything to achieve anything™ #TeamBoomi” Source: RevenueBase Database · checked Sep 29, 2026
6	GURU	Strong evidence	Rockville, MD, United StatesHQ checked Sep 29, 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 29, 2026
7	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 29, 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 29, 2026
8	ASM Research	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,568 contacts →
	Indirect 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 29, 2026
9	Engility Corporation	Indirect evidence	Reston, VA, United StatesHQ checked Sep 29, 2026	5,001-10,000	1,245 contacts →
	Indirect evidence “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Source: RevenueBase Database · checked Sep 29, 2026
10	Rovisys	Partial evidence	Aurora, OH, United StatesHQ checked Sep 29, 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 29, 2026
11	Fulcrum Digital INC	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,139 contacts →
	Partial evidence “Founded in Fulcrum Digital is a global system integrator driving transformative results through AI-powered solutions.” Source: RevenueBase Database · checked Sep 29, 2026
12	Prime Controls	Indirect evidence	Lewisville, TX, United StatesHQ checked Sep 29, 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 29, 2026
13	Systems Engineering Services Corporation Sesc	Partial evidence	Reston, VA, United StatesHQ checked Sep 29, 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 29, 2026
14	Vision Technologies	Indirect evidence	Glen Burnie, MD, United StatesHQ checked Sep 29, 2026	501-1,000	686 contacts →
	Indirect evidence “Vision Technologies is an Information Technology (IT) solutions and services company.” Source: RevenueBase Database · checked Sep 29, 2026
15	E Tech Group	Strong evidence	West Chester, OH, United StatesHQ checked Sep 29, 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 29, 2026
16	Enterprise Solutions INC	Indirect evidence	Warrenville, IL, United StatesHQ checked Sep 29, 2026	501-1,000	540 contacts →
	Indirect evidence “Enterprise Solutions, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
17	CLEO	Indirect evidence	Rockford, IL, United StatesHQ checked Sep 29, 2026	501-1,000	522 contacts →
	Indirect evidence “Cleo is a supply chain orchestration software company that connects, automates, and optimizes the critical processes that keep goods and data moving.” Source: RevenueBase Database · checked Sep 29, 2026
18	Unicom	Indirect evidence	Lincoln, RI, United StatesHQ checked Sep 29, 2026	201-500	472 contacts →
	Indirect evidence “UNICOM, a division of Custom Computer Specialists, is an IT services consultancy that provides technology solutions to corporate, education, government, and healthcare clients…” Source: RevenueBase Database · checked Sep 29, 2026
19	Technology Integration Group	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 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 29, 2026
20	Fori Automation, LLC A Lincoln Electric Company	Strong evidence	Shelby Twp., MI, United StatesHQ checked Sep 29, 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 29, 2026
21	ISCI	Indirect evidence	Manassas, VA, United StatesHQ checked Sep 29, 2026	201-500	446 contacts →
	Indirect evidence “Since 2001, Information Sciences Consulting, Inc.(ISCI) has earned an exemplary reputation for providing superior customer service to our clients.” Source: RevenueBase Database · checked Sep 29, 2026
22	SMS Data Products Group, INC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 29, 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 29, 2026
23	Object Computing, INC	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 29, 2026	201-500	435 contacts →
	Partial evidence “We engineer the systems that power your business.” Source: RevenueBase Database · checked Sep 29, 2026
24	Velociti	Indirect evidence	Riverside, MO, United StatesHQ checked Sep 29, 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 29, 2026
25	Tech Electronics	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 29, 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 29, 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: systems integration services. 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 systems integration services.
Partial evidence: Its own public description names part of systems integration services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems integration services. 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 4,851 systems integration services based in the United States

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Systems integration services based in the United States at a glance

As of Sep 29, 2026

35.2%Verified-email coverage

25.2Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,034

11-50

1,850

51-200

700

201-500

150

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 4,851 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 systems integration services, 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 “systems integration services”. 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 systems integration services), 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 systems integration services, 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, 43,007 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 29, 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.

Systems integration services 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 systems integration services, 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 systems integration services are there based in the United States?

RevenueBase identified 4,851 systems integration services 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 systems integration services?

New York leads with 107 headquartered companies, followed by Houston (102) and Atlanta (57).

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 43,007 verified decision-maker contacts tracked across these 4,851 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 29, 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.