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Company lists · Data verified August 2026

Top 25 Contact center platforms based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 988 companies tracked

There are 988 contact center platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 82,057 professional contacts across them, including 15,469 with verified work emails and 17,964 with mobile numbers. Miami is the largest hub.

This list covers contact center platforms 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.

988Companies
82,057Contacts tracked
15,469Verified emails
17,964Mobile numbers
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The 25 largest contact center platforms based in the United States

Ranked by team size
Top 25 of 988 contact center platforms 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
10DialpadSan Ramon, CA1,001-5,0001,463840
11MCILas Cruces, NM5,001-10,00097452
12Aspect SoftwareBoulder, CO1,001-5,000877180
13Focus ServicesRoy, UT1,001-5,00079363
14MoneypennyCharleston, SC1,001-5,000538190
15Contactus CommunicationsColumbus, OH1,001-5,00051335
16American Customer CareBristol, CT1,001-5,00051140
17Global ResponseMargate, FL1,001-5,00048933
18TLCXCedar Rapids, IA1,001-5,00045761
19CentrisLongview, TX1,001-5,00036525
20The Connection Contact CenterBurnsville, MN1,001-5,0003536
21Five Star Call CentersSioux Falls, SD1,001-5,00031261
22Genesys Interactive IntelligenceDaly City, CA1,001-5,00027684
23Net2phoneNewark, NJ1,001-5,000260131
24Rocket ConnectionsDetroit, MI1,001-5,00024821
25CallnovoMarkham1,001-5,0001875

Showing 25 of 988 contact center platforms based in the United States

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Contact center platforms based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
MiamiLargest hub · 28 HQs
17,964Contacts with mobile numbers
22Emails re-verified in last 30 days

Companies by employee count

1-10
243
11-50
352
51-200
215
201-500
74
501-1,000
45
1,001-5,000
43
5,001-10,000
9
10001+
6

Contact center platforms by metro

MetroCompanies
Contact center platforms in Miami28
Contact center platforms in New York25
Contact center platforms in Atlanta24
Contact center platforms in Austin20
Contact center platforms in San Francisco19
Contact center platforms in Chicago16
Contact center platforms in San Diego13
Contact center platforms 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 platforms”, 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; 22 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 platforms are there based in the United States?

There are 988 contact center platforms 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 platforms?

Miami leads with 28 headquartered companies, followed by New York (25) and Atlanta (24).

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 15,469 verified decision-maker contacts tracked across these 988 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 platforms 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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