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Company lists · Data verified August 2026

Top 25 Customer support outsourcing companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,333 companies tracked

There are 1,333 customer support outsourcing companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 106,780 professional contacts across them, including 11,069 with verified work emails and 16,539 with mobile numbers. New York is the largest hub.

This list covers customer support 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. Data current as of August 28, 2026.

1,333Companies
106,780Contacts tracked
11,069Verified emails
16,539Mobile numbers
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The 25 largest customer support outsourcing companies based in the United States

Ranked by team size
Top 25 of 1,333 customer support outsourcing companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1TTECRockleigh, NJ10001+26,4763,561
2Startek IndiaDenver, CO10001+4,405347
3TelvistaDallas, TX1,001-5,0003,12539
4Advanced Call Center Technologies, LLCJohnson City, TN5,001-10,0002,779282
5CAT Technologies ArgentinaMiami, FL1,001-5,0002,211323
6Infocision Management CorporationAkron, OH1,001-5,0001,773146
7SupportninjaAustin, TX1,001-5,0001,695547
8DialamericaMahwah, NJ1,001-5,0001,53750
9RDI CorporationCincinnati, OH1,001-5,0001,51238
10Senture, LLCLondon1,001-5,0001,477198
11BroadpathTucson, AZ1,001-5,0001,271218
12JindalxAZ1,001-5,0001,166172
13Valor GlobalScottsdale, AZ1,001-5,0001,04472
14Peak SupportCambridge, MA1,001-5,0001,019353
15MCILas Cruces, NM5,001-10,00097452
16Inktel Contact Center SolutionsDoral, FL1,001-5,000905113
17XtendopsSan Francisco, CA1,001-5,00088545
18HoratioNew York1,001-5,0008465
19SalelyticsAppleton, WI1,001-5,000784177
20Iqor IndiaSt Petersburg, FL10001+64994
21Onetouch DirectTampa, FL1,001-5,00063185
22TelenetworkSan Marcos, TX1,001-5,00056746
23Contactus CommunicationsColumbus, OH1,001-5,00051335
24American Customer CareBristol, CT1,001-5,00051140
25OnesupportSan Marcos, TX1,001-5,000478114

Showing 25 of 1,333 customer support outsourcing companies based in the United States

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Customer support outsourcing companies based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
New YorkLargest hub · 58 HQs
16,539Contacts with mobile numbers
13Emails re-verified in last 30 days

Companies by employee count

1-10
267
11-50
415
51-200
344
201-500
149
501-1,000
69
1,001-5,000
65
5,001-10,000
9
10001+
10

Customer support outsourcing companies by metro

MetroCompanies
Customer support outsourcing companies in New York58
Customer support outsourcing companies in Miami39
Customer support outsourcing companies in Austin30
Customer support outsourcing companies in Houston30
Customer support outsourcing companies in Sheridan29
Customer support outsourcing companies in Los Angeles18
Customer support outsourcing companies in Chicago18

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “customer support outsourcing companies”, with match quality audited by blind human judging, and headquartered in the United States.
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
Contact records re-verify on a rolling cadence; 13 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 1,333 customer support outsourcing companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

TTEC, headquartered in Rockleigh, tops this list with the largest team on record.

Which city has the most customer support outsourcing companies?

New York leads with 58 headquartered companies, followed by Miami (39) and Austin (30).

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 11,069 verified decision-maker contacts tracked across these 1,333 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Browse: Companies home · All United States lists · All Customer support outsourcing companies lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.

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