Company lists · Data refreshed October 2026

Top 25 Telecom services providers for call centers based in the United States

RevenueBase identified 2,035 company matches for telecom services providers for call centers associated with the United States as of October 2026 and tracks 57,161 professional contacts across them, including 12,931 with verified work emails. New York is the largest hub.

This list covers company matches for telecom services providers for call centers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 20, 2026 How this list was built
2,035Companies
57,161Contacts tracked
12,931Verified emails
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The 25 largest telecom services providers for call centers based in the United States

Ranked by team size
Top 25 of 2,035 company matches for telecom services providers for call centers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLittle Rock, AR, United StatesHQ recorded Oct 20, 202610001+7,474 contacts →

Exact match

“Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
2Exact matchPhoenix, AZ, United StatesHQ recorded Oct 20, 20261,001-5,0005,785 contacts →

Exact match

“Cable One Business offers scalable, reliable, and efficient solutions so that the businesses we serve can be successful.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
3Exact matchStamford, CT, United StatesHQ recorded Oct 20, 202610001+4,046 contacts →

Exact match

“Our story starts with understanding that connectivity powers everything you do, and we make it stronger.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
4Exact matchBerwyn, PA, United StatesHQ recorded Oct 20, 20265,001-10,0002,997 contacts →

Exact match

“Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
5Exact matchQuincy, MA, United StatesHQ recorded Oct 20, 20261,001-5,0002,346 contacts →

Exact match

“Granite is a dynamic and rapidly growing company serving the exciting and demanding Telecommunications market.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
6Exact matchVancouver, WA, United StatesHQ recorded Oct 20, 2026501-1,0001,201 contacts →

Exact match

“Integra is Allstream.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
7Exact matchHonolulu, HI, United StatesHQ recorded Oct 20, 20261,001-5,0001,157 contacts →

Exact match

“Over the last two decades our mission has evolved dramatically.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
8Exact matchHerndon, VA, United StatesHQ recorded Oct 20, 20261,001-5,0001,086 contacts →

Exact match

“XO Communications is a Verizon company that provides the technology that helps business and wholesale customers compete in a hyper-connected economy.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
9Exact matchHorsham, PA, United StatesHQ recorded Oct 20, 2026501-1,000926 contacts →

Exact match

“If you are interested in growing your business or increasing efficiency, AnswerNet has the expertise, technology, and people to help you take your company to new heights!”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Oct 20, 2026501-1,000624 contacts →

Exact match

“Leading brands, including over hotels, trust Cloud5 to deliver exceptional experiences that both attract and retain customers.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
11Exact matchAtlanta, GA, United StatesHQ recorded Oct 20, 2026501-1,000446 contacts →

Exact match

“We unleash human momentum with collaboration, connectivity, and communications technology.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
12Exact matchConcord, MA, United StatesHQ recorded Oct 20, 202651-200445 contacts →

Exact match

“NHC is THE communications STACK provider™.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
13Exact matchAtlanta, GA, United StatesHQ recorded Oct 20, 2026201-500433 contacts →

Exact match

“Fusion Connect delivers innovative, cloud communications services that transform business infrastructure into a foundation for lasting success.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
14Exact matchJonesboro, AR, United StatesHQ recorded Oct 20, 2026201-500424 contacts →

Exact match

“At Ritter Communications, we have over a century-long tradition of providing quality residential and business communication services all across Arkansas.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
15Exact matchPlano, TX, United StatesHQ recorded Oct 20, 2026201-500421 contacts →

Exact match

“Family owned and proudly based in Plano, Texas, SpectrumVoIP has kept businesses talking and thriving since 2007.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
16Exact matchLake Mary, FL, United StatesHQ recorded Oct 20, 2026n/a368 contacts →

Exact match

“ACS has over three decades of experience and unparalleled expertise in the assessment and implementation of voice and data platforms and can provide solutions for telephone…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Oct 20, 2026501-1,000320 contacts →

Exact match

“Founded in 1992, BCM One is a corporate communications company that powers business connectivity for organizations ranging from SMBs to global enterprises.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
18Exact matchPrinceton, NJ, United StatesHQ recorded Oct 20, 2026501-1,000272 contacts →

Exact match

“ExpertCallers (a division of Flatworld Solutions) is a global consulting and outsourcing company, with a wealth of experience in providing operational and strategic excellence to…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
19Exact matchRochester, NY, United StatesHQ recorded Oct 20, 202651-200259 contacts →

Exact match

“ACC Business was founded on a simple idea: provide small to mid-sized businesses first-rate telecom services with dedicated customer service, all at a competitive price.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
20Exact matchSt. George, UT, United StatesHQ recorded Oct 20, 2026201-500252 contacts →

Exact match

“A leader in the hosted contact center technology industry since TCN, Inc.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
21Exact matchJacksonville, FL, United StatesHQ recorded Oct 20, 2026501-1,000216 contacts →

Exact match

“With nine call centers located in America, El Salvador, Nicaragua, the Dominican Republic and the Philippines, Bernard works with some of America's largest companies to provide…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
22Exact matchChicago, IL, United StatesHQ recorded Oct 20, 202651-200214 contacts →

Exact match

“For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
23Exact matchBethpage, United StatesHQ recorded Oct 20, 2026201-500207 contacts →

Exact match

“Empower your business with fast, secure, and reliable connectivity solutions-all with the flexibility and support you deserve.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
24Exact matchNorthwood, OH, United StatesHQ recorded Oct 20, 2026201-500191 contacts →

Exact match

“For over 30 years, Telesystem has been a trusted technology partner for businesses across the country, delivering Managed Security, Networking, and Communication solutions backed…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
25Exact matchFairlawn, OH, United StatesHQ recorded Oct 20, 202651-200181 contacts →

Exact match

“FirstComm delivers smarter business communications and IT solutions that help organizations connect, collaborate, and scale with confidence.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase

Showing 25 of 2,035 telecom services providers for call centers based in the United States

See the full list, filter by size, metro and specialty, and access 12,931 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom services providers for call centers based in the United States at a glance

As of Oct 20, 2026
22.6%Verified-email coverage
28.1Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · New York
Oct 20, 2026Page data refreshed

Companies by employee count

1-10
867
11-50
837
51-200
247
201-500
42
501-1,000
20
1,001-5,000
13
5,001-10,000
3
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,035 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “telecom services providers for call centers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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
Every displayed company carries at least one verified work email. RevenueBase tracks 12,931 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on October 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “telecom services providers for call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom services providers for call centers are there based in the United States?

RevenueBase identified 2,035 company matches for telecom services providers for call centers associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Windstream tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom services providers for call centers?

New York leads with 61 company records, followed by Houston (34) and Atlanta (31).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,931 professional contacts with verified work emails tracked across these 2,035 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.