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Company lists · Data verified August 2026

Top 25 Customer contact center companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,065 companies tracked

There are 1,065 customer contact center companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 77,430 professional contacts across them, including 7,446 with verified work emails and 15,689 with mobile numbers. Miami is the largest hub.

This list covers customer 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.

1,065Companies
77,430Contacts tracked
7,446Verified emails
15,689Mobile numbers
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The 25 largest customer contact center companies based in the United States

Ranked by team size
Top 25 of 1,065 customer 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
1Startek IndiaDenver, CO10001+4,405347
2TelvistaDallas, TX1,001-5,0003,12539
3Advanced Call Center Technologies, LLCJohnson City, TN5,001-10,0002,779282
4CAT Technologies ArgentinaMiami, FL1,001-5,0002,211323
5Infocision Management CorporationAkron, OH1,001-5,0001,773146
6Faneuil INCHampton, VA1,001-5,0001,713167
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
15CBE CompaniesWaterloo, IA1,001-5,000838117
16Focus ServicesRoy, UT1,001-5,00079363
17Sequential Technology InternationalBethlehem1,001-5,00076243
18Omni InteractionsDallas, TX1,001-5,0007504
19Iqor IndiaSt Petersburg, FL10001+64994
20Contactus CommunicationsColumbus, OH1,001-5,00051335
21American Customer CareBristol, CT1,001-5,00051140
22Global ResponseMargate, FL1,001-5,00048933
23OnesupportSan Marcos, TX1,001-5,000478114
24SupportzebraHouston, TX1,001-5,00045299
25RevanaEnglewood, CO10001+3759

Showing 25 of 1,065 customer 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 7,446 reachable decision-makers.

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Customer contact center companies based in the United States at a glance

As of Aug 28, 2026
51-200Median size (employees)
MiamiLargest hub · 28 HQs
15,689Contacts with mobile numbers
8Emails re-verified in last 30 days

Companies by employee count

1-10
221
11-50
294
51-200
265
201-500
131
501-1,000
71
1,001-5,000
60
5,001-10,000
10
10001+
10

Customer contact center companies by metro

MetroCompanies
Customer contact center companies in Miami28
Customer contact center companies in Atlanta26
Customer contact center companies in New York23
Customer contact center companies in Austin19
Customer contact center companies in Houston18
Customer contact center companies in Dallas15
Customer contact center companies in Los Angeles15

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

There are 1,065 customer contact center companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Startek India, headquartered in Denver, tops this list with the largest team on record.

Which city has the most customer contact center companies?

Miami leads with 28 headquartered companies, followed by Atlanta (26) and New York (23).

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 7,446 verified decision-maker contacts tracked across these 1,065 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 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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