Company lists · Data refreshed September 2026

Top 24 IT outsourcing companies based in the United States

Name: IT outsourcing 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 4, 2026 5,266 companies tracked

RevenueBase identified 5,266 IT outsourcing companies headquartered in the United States as of September 2026 and tracks 147,244 professional contacts across them, including 23,292 with verified work emails and 15,690 with mobile numbers. New York is the largest hub.

This list covers IT outsourcing 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

5,266Companies

147,244Contacts tracked

23,292Verified emails

15,690Mobile numbers

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The 24 largest IT outsourcing companies based in the United States

Ranked by team size

Top 24 of 5,266 IT outsourcing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	HTC Global ServicesIndirect evidence	Troy, MI, United StatesHQ checked Sep 4, 2026	10001+	8,895
	“HTC Global Services Inc, founded in 1990, headquartered in Troy, Michigan, is a global provider of Information Technology and Business Process Services and Solutions.” Source: company website · checked Sep 4, 2026
2	Atos SyntelIndirect evidence	Troy, MI, United StatesHQ checked Sep 4, 2026	10001+	7,344
	“Atos\|Syntel is a leading global provider of integrated information technology and knowledge process services.” Source: company website · checked Sep 4, 2026
3	RDI CorporationIndirect evidence	Cincinnati, OH, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,512
	“At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Source: company website · checked Sep 4, 2026
4	Joulestowatts Business Solutions PVT LTDIndirect evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,422
	“At JoulestoWatts Business Solutions, headquartered in Texas, USA, we stand as a global powerhouse with over 5500+ dedicated professionals, catering to 300+ esteemed clients across…” Source: company website · checked Sep 4, 2026
5	Trigent Software INCIndirect evidence	Southborough, MA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,368
	“Trigent is a global leader in software solutions, headquartered in Southborough, MA, with development centers in Boston, Bangalore.” Source: company website · checked Sep 4, 2026
6	SEBPOIndirect evidence	Marlton, NJ, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,249
	“SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: company website · checked Sep 4, 2026
7	Information Evolution, INCPartial evidence	Austin, TX, United StatesHQ checked Sep 4, 2026	201-500	1,231
	“We are a boutique outsourcing firm specializing in keeping our customers' databases up-to-date, accurate, and as robust as possible.” Source: company website · checked Sep 4, 2026
8	IntelligroupPartial evidence	Princeton, NJ, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,121
	“Intelligroup is a global provider of innovative consulting, technology, and outsourcing services.” Source: company website · checked Sep 4, 2026
9	Damco SolutionsPartial evidence	Plainsboro, NJ, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,103
	“Damco Solutions is a leading IT Services and Solutions company which has been providing exceptional customer value and immense business advantages to its customers worldwide since…” Source: company website · checked Sep 4, 2026
10	Cyber Infrastructure CISIndirect evidence	San Jose, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	915
	“Think Big.” Source: company website · checked Sep 4, 2026
11	GSS InfotechPartial evidence	North Brunswick, NJ, United States	501-1,000	913
	“Founded in GSS Infotech is a global leader that offers technology and service solutions through staffing and IT.” Source: company website · checked Sep 4, 2026
12	AtidivPartial evidence	Miami Beach, NY, United StatesHQ checked Sep 4, 2026	501-1,000	884
	“At Atidiv, we help businesses scale smarter with our tech-enabled, data-driven outsourcing solutions.” Source: company website · checked Sep 4, 2026
13	Svitla Systems, INCIndirect evidence	Corte Madera California, CA, United StatesHQ checked Sep 4, 2026	501-1,000	873
	“Svitla is a global digital solutions company with over 20 years of industry experience.” Source: company website · checked Sep 4, 2026
14	Xtglobal, INCIndirect evidence	Plano, TX, United StatesHQ checked Sep 4, 2026	501-1,000	845
	“Founded in 1998, XTGlobal, Inc.” Source: company website · checked Sep 4, 2026
15	Buchanan TechnologiesStrong evidence	Grapevine, KS, United StatesHQ checked Sep 4, 2026	501-1,000	817
	“As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…” Source: company website · checked Sep 4, 2026
16	IonideaIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 4, 2026	1,001-5,000	780
	Source: company website · checked Sep 4, 2026
17	JDA TSGPartial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	501-1,000	765
	“JDA TSG is a preferred global strategic and outsourcing partner of some of the biggest brands in the world.” Source: company website · checked Sep 4, 2026
18	Ascendum SolutionsPartial evidence	Cincinnati, OH, United StatesHQ checked Sep 4, 2026	1,001-5,000	762
	“Ascendum is a global information technology (IT) solutions company that accelerates innovative technology-inspired solutions to business-driven challenges.” Source: company website · checked Sep 4, 2026
19	SUN TechnologiesIndirect evidence	Atlanta, United StatesHQ checked Sep 4, 2026	1,001-5,000	762
	“Established in 1996, Sun Technologies Inc.” Source: company website · checked Sep 4, 2026
20	Ispace, INCIndirect evidence	El Segundo, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	761
	“iSpace is a global services company focused on Information Technology Services, Business Process Services, Location Based Services and Healthcare Solutions.” Source: company website · checked Sep 4, 2026
21	Quantum World Technologies INCPartial evidence	Los Alamitos, NJ, United StatesHQ checked Sep 4, 2026	501-1,000	752
	“QUANTUM WORLD TECHNOLOGIES INC, is a IT Consulting and Staffing venture of QUANTUM GROUP OF COMPANIES having its presence in IT and I.T.E.S, Real Estate, Hospitality…” Source: company website · checked Sep 4, 2026
22	Worldwide TechservicesIndirect evidence	Tewksbury, MA, United StatesHQ checked Sep 4, 2026	1,001-5,000	725
	“Our worldwide team of over technicians service more than 3 million desktops, laptops, printers, servers, networks, satellites and LCDs each year in more than 50 countries.” Source: company website · checked Sep 4, 2026
23	Primus Global ServicesPartial evidence	Irving, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	714
	“PRIMUS provides expertise as a full service IT provider.” Source: company website · checked Sep 4, 2026
24	TenpathPartial evidence	Oak Brook, IL, United StatesHQ checked Sep 4, 2026	n/a	679
	“Headquartered in the United States, Tenpath Solutions is a multinational leader in outsourced IT Professional Services.” Source: company website · checked Sep 4, 2026

Showing 24 of 5,266 IT outsourcing companies based in the United States

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IT outsourcing companies based in the United States at a glance

As of Sep 4, 2026

11-50Median size (employees)

New YorkLargest hub · 170 HQs

15,690Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

1,623

11-50

1,962

51-200

1,162

201-500

311

501-1,000

105

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

2,099

61–90

12,488

90–180

8,392

180+

313

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 outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 outsourcing companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT outsourcing 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 an evidence 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, 23,292 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 4, 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 outsourcing companies by metro

IT outsourcing companies in New York170
IT outsourcing companies in Dallas114
IT outsourcing companies in Houston101
IT outsourcing companies in Irving92
IT outsourcing companies in Austin91
IT outsourcing companies in Sheridan75
IT outsourcing companies in Miami71
IT outsourcing companies in Atlanta62
IT outsourcing companies in Chicago60
IT outsourcing companies in Frisco59
IT outsourcing companies in Plano59
IT outsourcing companies in Los Angeles54
IT outsourcing companies in Wilmington51
IT outsourcing companies in Alpharetta49
IT outsourcing companies in San Francisco47
IT outsourcing companies in Princeton46
IT outsourcing companies in Fremont44
IT outsourcing companies in Tampa44
IT outsourcing companies in Charlotte40
IT outsourcing companies in Edison35
IT outsourcing companies in Santa Clara34
IT outsourcing companies in San Diego33
IT outsourcing companies in Herndon32
IT outsourcing companies in Orlando31
IT outsourcing companies in Phoenix30
IT outsourcing companies in San Jose29
IT outsourcing companies in Seattle27
IT outsourcing companies in Irvine26
IT outsourcing companies in Jacksonville26
IT outsourcing companies in Jersey City26
IT outsourcing companies in Newark26
IT outsourcing companies in Schaumburg26
IT outsourcing companies in Las Vegas25
IT outsourcing companies in Mckinney25

Frequently asked

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

RevenueBase identified 5,266 IT outsourcing 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?

HTC Global Services, headquartered in Troy, tops this list with the largest team on record.

Which city has the most IT outsourcing companies?

New York leads with 170 headquartered companies, followed by Dallas (114) and Houston (101).

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 23,292 verified decision-maker contacts tracked across these 5,266 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 4, 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.