Company lists · Data refreshed September 2026

Top 25 Quality assurance companies for contact centers based in the United States

RevenueBase identified 144 company matches for quality assurance companies for contact centers associated with the United States as of September 2026 and tracks 5,836 professional contacts across them, including 874 with verified work emails. Los Angeles is the largest hub.

This list covers company matches for quality assurance companies for contact 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 29, 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 29, 2026 How this list was built
144Companies
5,836Contacts tracked
874Verified emails
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The 25 largest quality assurance companies for contact centers based in the United States

Ranked by team size
Top 25 of 144 company matches for quality assurance companies for contact centers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchAtlanta, GA, United StatesHQ recorded Sep 29, 20261,001-5,000478 contacts →

Exact match

“Alvaria CX, the global leader in contact center solutions, emerged from the 2021 merger of Noble Systems and Aspect, bringing over 50 years of CX innovation.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchFalls Church, VA, United StatesHQ recorded Sep 29, 202651-200415 contacts →

Exact match

“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchSioux Falls, SD, United StatesHQ recorded Sep 29, 20261,001-5,000329 contacts →

Exact match

“Five Star Call Centers is a onshore and nearshore contact center outsourcer where we deliver outrageously amazing customer experiences for our clients and their customers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchPrinceton, NJ, United StatesHQ recorded Sep 29, 2026501-1,000264 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 · Sep 29, 2026 · View company records in RevenueBase
5Exact matchSanta Clara, CA, United StatesHQ recorded Sep 29, 2026201-500249 contacts →

Exact match

“Quality in An AI Driven World.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchIowa City, IA, United StatesHQ recorded Sep 29, 2026501-1,000235 contacts →

Exact match

“CONTACT CENTER SERVICES INNOVATIVE, HIGH-PERFORMANCE SOLUTIONS THAT WORK Mass Markets executes domestic omni-channel, inbound and outbound contact center services on behalf of…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchMchenry, IL, United StatesHQ recorded Sep 29, 2026501-1,000211 contacts →

Exact match

“Pro QC International provides tailored quality solutions with a human touch in 100 countries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchWinter Park, FL, United StatesHQ recorded Sep 29, 202651-200182 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20261,001-5,000171 contacts →

Exact match

“Zero Variance by Ubiquity is a leader in Contact Center Solutions, specializing in BPOaaS, AI Technology, CX Services, Business Intelligence, Data Analytics, and QA Professional…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchFort Myers, FL, United StatesHQ recorded Sep 29, 2026201-500161 contacts →

Exact match

“J.Lodge first opened its doors in and has become the recognized leader in the science of contact center monitoring and analysis.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLong Island, FL, United StatesHQ recorded Sep 29, 202651-200155 contacts →

Exact match

“BPA Quality is a woman owned business that provides contact centers with the insights to engineer great customer experiences every time through our expertise in quality…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchMarion, IA, United StatesHQ recorded Sep 29, 202651-200140 contacts →

Exact match

“LimoLink doesn’t just provide the best service in the industry; we provide the best service in any industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchMinnetonka, MN, United StatesHQ recorded Sep 29, 2026201-50097 contacts →

Exact match

“CCS provides around-the-clock contact center services for businesses of every size in all industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchNew Providence, NJ, United StatesHQ recorded Sep 29, 202651-20080 contacts →

Exact match

“Tech-Enabled Outsourcing Experts for Your Contact Center Needs Premier NX (formerly Stafford Communications) provides world-class contact center outsourcing services globally…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchCoeur D'alene, ID, United StatesHQ recorded Sep 29, 202651-20078 contacts →

Exact match

“SQM GROUP SQM Group is a software company specializing in automated QA for call center agents.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchEast Islip, NY, United StatesHQ recorded Sep 29, 2026201-50058 contacts →

Exact match

“Mktg, Inc, with 31 years of data collection expertise, has always had a reputation for quality data collection.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchAlpharetta, GA, United StatesHQ recorded Sep 29, 202651-20049 contacts →

Exact match

“Concentra Solutions maximizes contact center performance through Quality Assurance, specializing in Compliance and Customer Experience.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchCincinnati, OH, United StatesHQ recorded Sep 29, 202651-20041 contacts →

Exact match

“We believe in quality without compromise, and resolve quality issues more efficiently, and accurately, by holding ourselves to a documented, higher standard.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchHorsham, PA, United StatesHQ recorded Sep 29, 202651-20027 contacts →

Exact match

“Quality Contact Solutions provides quality call center solutions that achieve sales results.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchCanton, MI, United StatesHQ recorded Sep 29, 2026201-50025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchSuperior, WI, United StatesHQ recorded Sep 29, 202651-20024 contacts →

Exact match

“Company Overview: Founded in 2004, DCC / CCR is a 200-seat call center located in Superior, Wisconsin sitting right across the bay from Duluth, Minnesota on Lake Superior.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchSeahurst, WA, United StatesHQ recorded Sep 29, 202651-20023 contacts →

Exact match

“Customer Research, Inc.(CRI) has provided customer satisfaction measurement, customer loyalty, market research, and contact center solutions since 1967.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchPhoenix, AZ, United StatesHQ recorded Sep 29, 202651-20022 contacts →

Exact match

“HQC provides services for Call Centers, DME's and Pharmacies across the US and Canada.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchCampbell, CA, United StatesHQ recorded Sep 29, 202611-5021 contacts →

Exact match

“MiaRec is an AI-native conversation intelligence platform that helps contact centers turn customer interactions into actionable business insights.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchPayson, UT, United StatesHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“Contact Center Compliance Solved.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 144 quality assurance companies for contact centers based in the United States

See the full list, filter by size, metro and specialty, and access 874 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quality assurance companies for contact centers based in the United States at a glance

As of Sep 29, 2026
15.0%Verified-email coverage
40.5Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Los Angeles
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
53
11-50
33
51-200
28
201-500
15
501-1,000
8
1,001-5,000
6
10001+
1

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 144 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 “quality assurance companies for contact 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 874 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 29, 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 “quality assurance companies for contact centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality assurance companies for contact centers are there based in the United States?

RevenueBase identified 144 company matches for quality assurance companies for contact 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?

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

Which city has the most quality assurance companies for contact centers?

Los Angeles leads with 4 company records, followed by New York (4) and Atlanta (3).

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 874 professional contacts with verified work emails tracked across these 144 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 29, 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.