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Company lists · Data verified August 2026

Top 25 Contact center companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,353 companies tracked

There are 1,353 contact center companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 106,384 professional contacts across them, including 11,066 with verified work emails and 18,518 with mobile numbers. Miami is the largest hub.

This list covers contact center 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.

1,353Companies
106,384Contacts tracked
11,066Verified emails
18,518Mobile numbers
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The 25 largest contact center companies based in the United States

Ranked by team size
Top 25 of 1,353 contact center 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
8PerceptaMelbourne, FL1,001-5,0001,591329
9DialamericaMahwah, NJ1,001-5,0001,53750
10RDI CorporationCincinnati, OH1,001-5,0001,51238
11Senture, LLCLondon1,001-5,0001,477198
12Valor GlobalScottsdale, AZ1,001-5,0001,04472
13MCILas Cruces, NM5,001-10,00097452
14Inktel Contact Center SolutionsDoral, FL1,001-5,000905113
15Focus ServicesRoy, UT1,001-5,00079363
16Sequential Technology InternationalBethlehem1,001-5,00076243
17Iqor IndiaSt Petersburg, FL10001+64994
18TelenetworkSan Marcos, TX1,001-5,00056746
19Contactus CommunicationsColumbus, OH1,001-5,00051335
20American Customer CareBristol, CT1,001-5,00051140
21Global ResponseMargate, FL1,001-5,00048933
22OnesupportSan Marcos, TX1,001-5,000478114
23SupportzebraHouston, TX1,001-5,00045299
24CentrisLongview, TX1,001-5,00036525
25The Connection Contact CenterBurnsville, MN1,001-5,0003536

Showing 25 of 1,353 contact center companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 11,066 reachable decision-makers.

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Contact center companies based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
MiamiLargest hub · 36 HQs
18,518Contacts with mobile numbers
11Emails re-verified in last 30 days

Companies by employee count

1-10
302
11-50
397
51-200
340
201-500
153
501-1,000
72
1,001-5,000
63
5,001-10,000
10
10001+
12

Contact center companies by metro

MetroCompanies
Contact center companies in Miami36
Contact center companies in Houston29
Contact center companies in New York28
Contact center companies in Atlanta27
Contact center companies in Austin21
Contact center companies in Phoenix19
Contact center companies in Orlando19

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 “contact center 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; 11 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 contact center companies are there based in the United States?

There are 1,353 contact center 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 contact center companies?

Miami leads with 36 headquartered companies, followed by Houston (29) and New York (28).

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 11,066 verified decision-maker contacts tracked across these 1,353 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 Contact center 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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