Company lists · Data refreshed September 2026

Top 25 Billing inquiry call centers based in the United States

RevenueBase identified 161 company matches for billing inquiry call centers associated with the United States as of September 2026 and tracks 13,370 professional contacts across them, including 1,320 with verified work emails. Austin is the largest hub.

This list covers company matches for billing inquiry 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 September 27, 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 Sep 27, 2026 How this list was built
161Companies
13,370Contacts tracked
1,320Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest billing inquiry call centers based in the United States

Ranked by team size
Top 25 of 161 company matches for billing inquiry call centers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchBerwyn, PA, United StatesHQ recorded Sep 27, 20265,001-10,0002,774 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 · Sep 27, 2026 · View company records in RevenueBase
2Exact matchPhoenix, AZ, United StatesHQ recorded Sep 27, 20261,001-5,0001,048 contacts →

Exact match

“Valor Global is a global leader in providing extraordinary customer experiences for clients across the globe.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchDoral, FL, United StatesHQ recorded Sep 27, 20261,001-5,000902 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 · Sep 27, 2026 · View company records in RevenueBase
4Exact matchSaint Charles, MO, United StatesHQ recorded Sep 27, 2026501-1,000629 contacts →

Exact match

“Client Services, Inc.(CSI) was founded in 1987 in the heartland of America.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchGeneseo, NY, United StatesHQ recorded Sep 27, 2026501-1,000514 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 · Sep 27, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Sep 27, 20261,001-5,000454 contacts →

Exact match

“SupportZebra is a business process outsourcing company based in the Philippines, with headquarters in the Houston,TX region, that specializes in: Sales & Marketing Retention |…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchBloomington, MN, United StatesHQ recorded Sep 27, 20261,001-5,000354 contacts →

Exact match

“For over 35 years, The Connection has made a name for ourselves becoming one of the top industry partners to Fortune 500 companies looking to outsource their contact center…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchHorsham, PA, United StatesHQ recorded Sep 27, 202610001+232 contacts →

Exact match

“NCO's Customer Fit Solutions are Custom Fit.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchNorcross, GA, United StatesHQ recorded Sep 27, 20261,001-5,000231 contacts →

Exact match

“TransCentra is one of the largest and most trusted billing and payments providers in the U.S.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchParsipany, NJ, United StatesHQ recorded Sep 27, 2026201-500199 contacts →

Exact match

“Ceequence is an ISO 27001 company that operates a 250-seat call center in Chennai, India, with state-of-the-art technology and experienced customer service professionals for…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchJacksonville, FL, United StatesHQ recorded Sep 27, 2026501-1,000192 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 · Sep 27, 2026 · View company records in RevenueBase
12Exact matchSpringfield, MO, United StatesHQ recorded Sep 27, 2026201-500180 contacts →

Exact match

“Gold Mountain Communications is a US-based live operator inbound/outbound call center and service agency helping leading national corporations outsource their customer service and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchCharleston, SC, United StatesHQ recorded Sep 27, 202651-200154 contacts →

Exact match

“Founded in 1982, Call Experts is a family owned and operated call center focused on providing extensive telecommunications and office-based services to professionals in numerous…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchJacksonville, FL, United StatesHQ recorded Sep 27, 2026501-1,000147 contacts →

Exact match

“Diversified Consultants, Inc.(DCI) is a business comprised of full service call centers specializing in Accounts Receivable Management functions with over 26 years of experience…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchMinneapolis, MN, United StatesHQ recorded Sep 27, 2026501-1,000143 contacts →

Exact match

“Customer Elation provides call center services and telephone answering services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchEden Prairie, MN, United StatesHQ recorded Sep 27, 202651-20084 contacts →

Exact match

“Viking Client Services is a national provider of electronic payment solutions, customer care, billing and collection and recovery services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 27, 2026201-50067 contacts →

Exact match

“APEX was founded to provide businesses of all kinds a full-service center where they can have all their needs met.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchSartell, MN, United StatesHQ recorded Sep 27, 2026501-1,00065 contacts →

Exact match

“Array Services Group and its three innovative business units - CareCall, J.C.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchCherry Hill, NJ, United StatesHQ recorded Sep 27, 202651-20065 contacts →

Exact match

“When it comes to telling our story, no one does it better than our clients.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchColumbus, OH, United StatesHQ recorded Sep 27, 202651-20061 contacts →

Exact match

“Continental Message Solution (CMS) is an award-winning call center outsourcing company based in Columbus, Ohio.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchDanville, KY, United StatesHQ recorded Sep 27, 202611-5059 contacts →

Exact match

“AllCall solutions give our clients flexibility and support to sustain a positive customer experience every time the phone rings.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchLubbock, TX, United StatesHQ recorded Sep 27, 202651-20054 contacts →

Exact match

“TAS United is a US-based multinational telecommunication company that delivers live and automated call processing solutions for our medical and business clients throughout the…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchMarquette, MI, United StatesHQ recorded Sep 27, 202651-20053 contacts →

Exact match

“Superior Contact helps businesses large and small extend their reach and get the most out of every contact with customers and prospects.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchEstados Unidos, TX, United StatesHQ recorded Sep 27, 202651-20048 contacts →

Exact match

“Omnifon is part of the TXM group, a technology and services company focused on delivering solutions centered on telecommunications technologies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchTucson, AZ, United StatesHQ recorded Sep 27, 202651-20044 contacts →

Exact match

“We are a full service call center in Arizona that provides 21st century technology and old fashioned customer service.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 161 billing inquiry call centers based in the United States

See the full list, filter by size, metro and specialty, and access 1,320 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Billing inquiry call centers based in the United States at a glance

As of Sep 27, 2026
9.9%Verified-email coverage
83.0Average contacts per company
51-200Median size (employees)
3.1%Largest-city concentration · Austin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
39
51-200
48
201-500
24
501-1,000
15
1,001-5,000
7
5,001-10,000
2
10001+
2

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 161 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 “billing inquiry 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 1,320 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 September 27, 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 “billing inquiry call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 161 company matches for billing inquiry call centers associated with the United States as of September 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?

Advanced Call Center Technologies, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most billing inquiry call centers?

Austin leads with 5 company records, followed by Houston (4) and Miami (4).

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 1,320 professional contacts with verified work emails tracked across these 161 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 September 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 161 billing inquiry call centers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.