Company lists · Data refreshed November 2026

Top 25 Contract call centers based in the United States

RevenueBase identified 1,356 company matches for contract call centers associated with the United States as of November 2026 and tracks 81,484 professional contacts across them, including 7,676 with verified work emails. New York is the largest hub.

This list covers company matches for contract 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 November 5, 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 Nov 5, 2026 How this list was built
1,356Companies
81,484Contacts tracked
7,676Verified emails
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The 25 largest contract call centers based in the United States

Ranked by team size
Top 25 of 1,356 company matches for contract call centers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchDallas, TX, United StatesHQ recorded Nov 5, 20265,001-10,0004,798 contacts →

Exact match

“With a fresh name and decades of contact center expertise, we’re dedicated to collaborative partnerships, understanding your unique needs, and tailoring solutions for an enhanced…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchDallas, TX, United StatesHQ recorded Nov 5, 20261,001-5,0003,517 contacts →

Exact match

“Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchBerwyn, PA, United StatesHQ recorded Nov 5, 20265,001-10,0003,116 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNeenah, CA, United StatesHQ recorded Nov 5, 20261,001-5,0002,341 contacts →

Exact match

“Alta Resources has always worked to be something different.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026n/a2,072 contacts →

Exact match

“Human-Led, Tech-Powered Customer Service Liveops helps enterprise brands deliver flexible customer service that builds trust, strengthens loyalty, and adapts to changing demand.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Nov 5, 20261,001-5,0002,070 contacts →

Exact match

“SupportNinja provides customer experience and back-office support services for tech companies and startups around the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchAkron, OH, United StatesHQ recorded Nov 5, 20261,001-5,0001,947 contacts →

Exact match

“InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMahwah, NJ, United StatesHQ recorded Nov 5, 20261,001-5,0001,628 contacts →

Exact match

“DialAmerica is now Aucera.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchCincinnati, OH, United StatesHQ recorded Nov 5, 20261,001-5,0001,615 contacts →

Exact match

“At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchIowa City, DC, United StatesHQ recorded Nov 5, 20265,001-10,0001,073 contacts →

Exact match

“MCI is a global leader in tech-enabled business services, simplifying contact center outsourcing for brands worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchDoral, FL, United StatesHQ recorded Nov 5, 20261,001-5,000969 contacts →

Exact match

“Our Company Inktel is a leading business process outsourcer that specializes in creating personalized call center solutions which enable our clients to increase market share…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchHorsham, PA, United StatesHQ recorded Nov 5, 2026501-1,000946 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 · Nov 5, 2026 · View company records in RevenueBase
13Exact matchPortland, ME, United StatesHQ recorded Nov 5, 2026201-500932 contacts →

Exact match

“NexRep is a leader in virtual contact center solutions, with more than 100 years of combined contact center leadership.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchCedar Falls, IA, United StatesHQ recorded Nov 5, 20261,001-5,000883 contacts →

Exact match

“CBE Companies is the parent organization of CBE Customer Solutions and CBE Group.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchTampa, FL, United StatesHQ recorded Nov 5, 20261,001-5,000815 contacts →

Exact match

“As a trusted global outsource provider, we know connection is a universal language.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchBethlehem, United StatesHQ recorded Nov 5, 20261,001-5,000811 contacts →

Exact match

“Sequential Tech is the trusted outsource partner of wireline/wireless telecommunication, broadband, cable/MSO, and satellite service providers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchSalisbury, VA, United StatesHQ recorded Nov 5, 2026501-1,000623 contacts →

Exact match

“We are customer service experts.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSan Marcos, TX, United StatesHQ recorded Nov 5, 20261,001-5,000587 contacts →

Exact match

“teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchBristol, CT, United StatesHQ recorded Nov 5, 20261,001-5,000583 contacts →

Exact match

“American Customer Care specializes in providing individualized contact with your customers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchGeneseo, NY, United StatesHQ recorded Nov 5, 2026501-1,000577 contacts →

Exact match

“Coast is a top-performing call center services company that specializes in onshore omni-channel solutions, accounts receivable management, and back-office functions for public and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchColumbus, OH, United StatesHQ recorded Nov 5, 20261,001-5,000549 contacts →

Exact match

“ContactUs Communications is a U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchOrlando, FL, United StatesHQ recorded Nov 5, 2026501-1,000543 contacts →

Exact match

“Activus Connect is a premium provider of Customer Experience Outsourced Solutions, operating across the Continental US & Puerto Rico.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchMargate, FL, United StatesHQ recorded Nov 5, 20261,001-5,000529 contacts →

Exact match

“Global Response is The Brand Contact Center.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Nov 5, 2026501-1,000516 contacts →

Exact match

“We build fully managed call centers: Software build outs Hiring Training Integrations”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchPortland, OR, United StatesHQ recorded Nov 5, 2026501-1,000501 contacts →

Exact match

“Ruby supports more than businesses with live virtual receptionists and 24/7 chat services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 1,356 contract call centers based in the United States

See the full list, filter by size, metro and specialty, and access 7,676 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Contract call centers based in the United States at a glance

As of Nov 5, 2026
9.4%Verified-email coverage
60.1Average contacts per company
11-50Median size (employees)
2.7%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
286
11-50
438
51-200
342
201-500
147
501-1,000
56
1,001-5,000
62
5,001-10,000
11
10001+
8

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 1,356 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 “contract 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 7,676 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 November 5, 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 “contract call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many contract call centers are there based in the United States?

RevenueBase identified 1,356 company matches for contract call centers associated with the United States as of November 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?

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

Which city has the most contract call centers?

New York leads with 37 company records, followed by Houston (33) and Miami (33).

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 7,676 professional contacts with verified work emails tracked across these 1,356 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 November 5, 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.