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Company lists · Data verified August 2026

Top 25 Contact center platform providers based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 924 companies tracked

There are 924 contact center platform providers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 78,430 professional contacts across them, including 14,026 with verified work emails and 17,142 with mobile numbers. Atlanta is the largest hub.

This list covers contact center platform providers 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.

924Companies
78,430Contacts tracked
14,026Verified emails
17,142Mobile numbers
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The 25 largest contact center platform providers based in the United States

Ranked by team size
Top 25 of 924 contact center platform providers 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
1IQORFort Lauderdale, FL10001+17,3011,241
2VerintChicago, IL5,001-10,0003,8322,312
3VonageHolmdel, NJ1,001-5,0003,5121,736
4TelvistaDallas, TX1,001-5,0003,12539
5Five9San Ramon, CA1,001-5,0002,5781,583
6CAT Technologies ArgentinaMiami, FL1,001-5,0002,211323
7Infocision Management CorporationAkron, OH1,001-5,0001,773146
8DialamericaMahwah, NJ1,001-5,0001,53750
9Senture, LLCLondon1,001-5,0001,477198
10MCILas Cruces, NM5,001-10,00097452
11AnswernetHorsham, PA501-1,000892148
12Focus ServicesRoy, UT1,001-5,00079363
13Omni InteractionsDallas, TX1,001-5,0007504
14The Call Center DoctorsHouston, TX501-1,0005575
15Global Contact Services GCSYuma, AZ501-1,0005429
16MoneypennyCharleston, SC1,001-5,000538190
17Contactus CommunicationsColumbus, OH1,001-5,00051335
18American Customer CareBristol, CT1,001-5,00051140
19Global ResponseMargate, FL1,001-5,00048933
20Activus ConnectOrlando, FL501-1,00048071
21TLCXCedar Rapids, IA1,001-5,00045761
22Ansafone Contact CentersOcala, FL501-1,00042970
23CentrisLongview, TX1,001-5,00036525
24The Connection Contact CenterBurnsville, MN1,001-5,0003536
25Five Star Call CentersSioux Falls, SD1,001-5,00031261

Showing 25 of 924 contact center platform providers based in the United States

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Contact center platform providers based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
AtlantaLargest hub · 26 HQs
17,142Contacts with mobile numbers
17Emails re-verified in last 30 days

Companies by employee count

1-10
230
11-50
323
51-200
198
201-500
73
501-1,000
45
1,001-5,000
40
5,001-10,000
9
10001+
5

Contact center platform providers by metro

MetroCompanies
Contact center platform providers in Atlanta26
Contact center platform providers in Miami24
Contact center platform providers in Austin20
Contact center platform providers in New York18
Contact center platform providers in Chicago16
Contact center platform providers in Houston14
Contact center platform providers in Phoenix14
Contact center platform providers in Orlando13

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 platform providers”, 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; 17 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 platform providers are there based in the United States?

There are 924 contact center platform providers headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

IQOR, headquartered in Fort Lauderdale, tops this list with the largest team on record.

Which city has the most contact center platform providers?

Atlanta leads with 26 headquartered companies, followed by Miami (24) and Austin (20).

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 14,026 verified decision-maker contacts tracked across these 924 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 platform providers 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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