Company lists · Data refreshed September 2026
Top 25 Quality assurance consulting companies for contact centers worldwide
RevenueBase identified 2,631 company matches for quality assurance consulting companies for contact centers worldwide as of September 2026 and tracks 65,598 professional contacts across them, including 7,899 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for quality assurance consulting companies for contact centers worldwide, 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. Country and city lists for quality assurance consulting companies for contact centers follow the table.
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.
The 25 largest quality assurance consulting companies for contact centers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,167 contacts → | ||||
Exact match “Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 2,552 contacts → | ||||
Exact match “Com 19 anos de experiência em CX e BPO, somos consultivos e entregamos soluções personalizadas que conectam pessoas e tecnologia para impulsionar seus resultados.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 2,101 contacts → | ||||
Exact match “Your customers are human.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 1,915 contacts → | ||||
Exact match “consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 1,536 contacts → | ||||
Exact match “DialAmerica is now Aucera.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 1,473 contacts → | ||||
Exact match “Senture provides comprehensive contact center service support nationally.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 1,306 contacts → | ||||
Exact match “At Unisono, for more than 20 years we have been working side by side with our customers across the globe to meet their demands as well as our own.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 1,225 contacts → | ||||
Exact match “We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 1,076 contacts → | ||||
Exact match “Even the markets know that we’re the good call’!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 686 contacts → | ||||
Exact match “Consultora especializada en servicios de Aseguramiento de la Calidad del Software dirigidos a controlar y mejorar los costes, plazos y calidad del ciclo de vida de los productos…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 649 contacts → | ||||
Exact match “Somos Jazzplat Colombia, un innovador Centro de Atención al Cliente que forma parte de MASORANGE.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 542 contacts → | ||||
Exact match “We are customer service experts.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 515 contacts → | ||||
Exact match “ContactUs Communications is a U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 478 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 | |||||
| 15 | 474 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 451 contacts → | ||||
Exact match “Capita is an award-winning contact centre service company with fully hosted global delivery centres trusted by global leading brands to transform their Customer Experience.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 436 contacts → | ||||
Exact match “Outsourcing de serviços de contact center, com atendimento multicanal.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 430 contacts → | ||||
Exact match “Millennium1 Solutions is now NTT Business Process Outsourcing.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 415 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 | |||||
| 20 | 395 contacts → | ||||
Exact match “Tersea est le premier opérateur de centre de contact qui propose une solution originale et innovante et qui met tout son savoir faire à disposition de ses clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 390 contacts → | ||||
Exact match “Soluciones integrales de Contact Center.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 373 contacts → | ||||
Exact match “Revana is now TTEC.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 367 contacts → | ||||
Exact match “Here’s our ten-second elevator pitch: we provide affordable, onshore and/or nearshore, high-touch customized contact center solutions for brands who care deeply about the quality…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 338 contacts → | ||||
Exact match “29 años de experiencia brindando soluciones integrales de contact center que superen las expectativas de nuestros clientes, a través de un equipo altamente capacitado, tecnología…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 337 contacts → | ||||
Exact match “Somos uma empresa de contact center que tem como foco a satisfação dos clientes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “quality assurance consulting companies for contact centers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,631 quality assurance consulting companies for contact centers worldwide
See the full list, filter by size, metro and specialty, and access 7,899 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Quality assurance consulting companies for contact centers worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for quality assurance consulting companies for contact centers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “quality assurance consulting 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. 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 7,899 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.
Quality assurance consulting companies for contact centers by location
16 lists · largest firstEvery Quality assurance consulting companies for contact centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quality assurance consulting companies for contact centers based in the United States512
- Quality assurance consulting companies for contact centers based in Brazil163
- Quality assurance consulting companies for contact centers based in the United Kingdom140
- Quality assurance consulting companies for contact centers based in India102
- Quality assurance consulting companies for contact centers based in France89
- Quality assurance consulting companies for contact centers based in Germany75
- Quality assurance consulting companies for contact centers based in the Netherlands71
- Quality assurance consulting companies for contact centers based in Canada69
- Quality assurance consulting companies for contact centers based in Mexico61
- Quality assurance consulting companies for contact centers based in Spain58
- Quality assurance consulting companies for contact centers based in Australia54
- Quality assurance consulting companies for contact centers based in South Africa34
- Quality assurance consulting companies for contact centers based in Türkiye31
- Quality assurance consulting companies for contact centers based in Sweden29
Cities
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 consulting companies for contact centers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many quality assurance consulting companies for contact centers are there worldwide?
RevenueBase identified 2,631 company matches for quality assurance consulting companies for contact centers worldwide 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?
Turkcell Global Bilgi tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most quality assurance consulting companies for contact centers?
The United States leads with 512 companies, followed by Brazil (163) and the United Kingdom (140). Every quality assurance consulting companies for contact centers list by country and city is linked on this page.
Which city has the most quality assurance consulting companies for contact centers?
Sao Paulo leads with 60 company records, followed by London (39) and Paris (24).
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 7,899 professional contacts with verified work emails tracked across these 2,631 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.
Ready to reach these companies? Verified emails and direct dials for all 2,631 quality assurance consulting companies for contact centers worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 quality assurance consulting companies for contact centers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,631 matching company records for quality assurance consulting companies for contact centers worldwide, with 65,598 tracked contacts and 7,899 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 quality assurance consulting companies for contact centers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Turkcell Global Bilgiglobalbilgi.com.trHQ: Beyoglu, TürkiyeReported employees: 10001+ | Beyoglu, Türkiye | 10001+ | Exact match | 6,167 contacts → |
“Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TAHTOtahto.com.brHQ: Goiânia, BrazilReported employees: 10001+ | Goiânia, Brazil | 10001+ | Exact match | 2,552 contacts → |
“Com 19 anos de experiência em CX e BPO, somos consultivos e entregamos soluções personalizadas que conectam pessoas e tecnologia para impulsionar seus resultados.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Second To Nonesecond-to-none.comHQ: Ann Arbor, MI, United StatesReported employees: Not recorded | Ann Arbor, MI, United States | Not recorded | Exact match | 2,101 contacts → |
“Your customers are human.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ACEacehardware.com HQ: CanadaReported employees: Not recorded | Canada | Not recorded | Exact match | 1,915 contacts → |
“consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Dialamericaaucera.comHQ: Mahwah, NJ, United StatesReported employees: 1,001-5,000 | Mahwah, NJ, United States | 1,001-5,000 | Exact match | 1,536 contacts → |
“DialAmerica is now Aucera.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Senture, LLCsenture.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,473 contacts → |
“Senture provides comprehensive contact center service support nationally.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Grupo Unísonointelcia.esHQ: Madrid, SpainReported employees: Not recorded | Madrid, Spain | Not recorded | Exact match | 1,306 contacts → |
“At Unisono, for more than 20 years we have been working side by side with our customers across the globe to meet their demands as well as our own.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  American Call Centeracc.com.ecHQ: Guayaquil, EcuadorReported employees: 1,001-5,000 | Guayaquil, Ecuador | 1,001-5,000 | Exact match | 1,225 contacts → |
“We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Hrhnext Services Limitedhrhnext.comHQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,076 contacts → |
“Even the markets know that we’re the good call’!” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  MTP Métodos Y Tecnologíamtp.esHQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 686 contacts → |
“Consultora especializada en servicios de Aseguramiento de la Calidad del Software dirigidos a controlar y mejorar los costes, plazos y calidad del ciclo de vida de los productos…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Jazzplat Colombia S.A.Sjazzplat.coHQ: Bogotá, ColombiaReported employees: 1,001-5,000 | Bogotá, Colombia | 1,001-5,000 | Exact match | 649 contacts → |
“Somos Jazzplat Colombia, un innovador Centro de Atención al Cliente que forma parte de MASORANGE.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Global Contact Services GCSgcsagents.comHQ: Salisbury, NC, United StatesReported employees: 501-1,000 | Salisbury, NC, United States | 501-1,000 | Exact match | 542 contacts → |
“We are customer service experts.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Contactus Communicationscusc.comHQ: Columbus, OH, United StatesReported employees: 1,001-5,000 | Columbus, OH, United States | 1,001-5,000 | Exact match | 515 contacts → |
“ContactUs Communications is a U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Alvaria CXalvaria.comHQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 478 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ECE Consulting Groupececonsultinggroup.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 474 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Capita South Africacapita.comHQ: Cape Town, South AfricaReported employees: 1,001-5,000 | Cape Town, South Africa | 1,001-5,000 | Exact match | 451 contacts → |
“Capita is an award-winning contact centre service company with fully hosted global delivery centres trusted by global leading brands to transform their Customer Experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Qualityquality.co.ao HQ: Maputo, MozambiqueReported employees: 201-500 | Maputo, Mozambique | 201-500 | Exact match | 436 contacts → |
“Outsourcing de serviços de contact center, com atendimento multicanal.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Millennium 1 Solutionsmillennium1solutions.comHQ: Toronto, ON, CanadaReported employees: 1,001-5,000 | Toronto, ON, Canada | 1,001-5,000 | Exact match | 430 contacts → |
“Millennium1 Solutions is now NTT Business Process Outsourcing.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Astegicastegic.comHQ: Falls Church, VA, United StatesReported employees: 51-200 | Falls Church, VA, United States | 51-200 | Exact match | 415 contacts → |
“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Terseatersea.comHQ: Paris, FranceReported employees: 1,001-5,000 | Paris, France | 1,001-5,000 | Exact match | 395 contacts → |
“Tersea est le premier opérateur de centre de contact qui propose une solution originale et innovante et qui met tout son savoir faire à disposition de ses clients.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Callsouth S.Acallsouth.cl HQ: ChileReported employees: 201-500 | Chile | 201-500 | Exact match | 390 contacts → |
“Soluciones integrales de Contact Center.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Revanattec.comHQ: Englewood, CO, United StatesReported employees: 10001+ | Englewood, CO, United States | 10001+ | Exact match | 373 contacts → |
“Revana is now TTEC.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Blue Ocean Contact Centersblueocean.caHQ: Halifax, NS, CanadaReported employees: 501-1,000 | Halifax, NS, Canada | 501-1,000 | Exact match | 367 contacts → |
“Here’s our ten-second elevator pitch: we provide affordable, onshore and/or nearshore, high-touch customized contact center solutions for brands who care deeply about the quality…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Anexa BPOanexabpo.comHQ: Benito Juárez, MexicoReported employees: 1,001-5,000 | Benito Juárez, Mexico | 1,001-5,000 | Exact match | 338 contacts → |
“29 años de experiencia brindando soluciones integrales de contact center que superen las expectativas de nuestros clientes, a través de un equipo altamente capacitado, tecnología…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Toscanateletoscana.com.brHQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 337 contacts → |
“Somos uma empresa de contact center que tem como foco a satisfação dos clientes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,631 company matches
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Quality assurance consulting companies for contact centers: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,628 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,631 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Quality assurance consulting companies for contact centers by location
16 lists · largest firstEvery Quality assurance consulting companies for contact centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quality assurance consulting companies for contact centers based in the United States512
- Quality assurance consulting companies for contact centers based in Brazil163
- Quality assurance consulting companies for contact centers based in the United Kingdom140
- Quality assurance consulting companies for contact centers based in India102
- Quality assurance consulting companies for contact centers based in France89
- Quality assurance consulting companies for contact centers based in Germany75
- Quality assurance consulting companies for contact centers based in the Netherlands71
- Quality assurance consulting companies for contact centers based in Canada69
- Quality assurance consulting companies for contact centers based in Mexico61
- Quality assurance consulting companies for contact centers based in Spain58
- Quality assurance consulting companies for contact centers based in Australia54
- Quality assurance consulting companies for contact centers based in South Africa34
- Quality assurance consulting companies for contact centers based in Türkiye31
- Quality assurance consulting companies for contact centers based in Sweden29
Cities
Questions about this company list
What does Exact match mean for quality assurance consulting companies for contact centers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many quality assurance consulting companies for contact centers did RevenueBase find worldwide?
The saved snapshot records 2,631 matching company records, 65,598 tracked contacts and 7,899 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 quality assurance consulting companies for contact centers worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/quality-assurance-consulting-companies-for-contact-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 quality assurance consulting companies for contact centers worldwide
RevenueBase records 2,631 matching company records for quality assurance consulting companies for contact centers worldwide, with 65,598 tracked contacts and 7,899 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 quality assurance consulting companies for contact centers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Turkcell Global Bilgiglobalbilgi.com.tr HQ: Beyoglu, TürkiyeReported employees: 10001+ | Beyoglu, Türkiye | 10001+ | Exact match | 6,167 contacts → |
“Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TAHTOtahto.com.br HQ: Goiânia, BrazilReported employees: 10001+ | Goiânia, Brazil | 10001+ | Exact match | 2,552 contacts → |
“Com 19 anos de experiência em CX e BPO, somos consultivos e entregamos soluções personalizadas que conectam pessoas e tecnologia para impulsionar seus resultados.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Second To Nonesecond-to-none.com HQ: Ann Arbor, MI, United StatesReported employees: Not recorded | Ann Arbor, MI, United States | Not recorded | Exact match | 2,101 contacts → |
“Your customers are human.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ACEacehardware.com HQ: CanadaReported employees: Not recorded | Canada | Not recorded | Exact match | 1,915 contacts → |
“consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dialamericaaucera.com HQ: Mahwah, NJ, United StatesReported employees: 1,001-5,000 | Mahwah, NJ, United States | 1,001-5,000 | Exact match | 1,536 contacts → |
“DialAmerica is now Aucera.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Senture, LLCsenture.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,473 contacts → |
“Senture provides comprehensive contact center service support nationally.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Grupo Unísonointelcia.es HQ: Madrid, SpainReported employees: Not recorded | Madrid, Spain | Not recorded | Exact match | 1,306 contacts → |
“At Unisono, for more than 20 years we have been working side by side with our customers across the globe to meet their demands as well as our own.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | American Call Centeracc.com.ec HQ: Guayaquil, EcuadorReported employees: 1,001-5,000 | Guayaquil, Ecuador | 1,001-5,000 | Exact match | 1,225 contacts → |
“We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hrhnext Services Limitedhrhnext.com HQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,076 contacts → |
“Even the markets know that we’re the good call’!” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | MTP Métodos Y Tecnologíamtp.es HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 686 contacts → |
“Consultora especializada en servicios de Aseguramiento de la Calidad del Software dirigidos a controlar y mejorar los costes, plazos y calidad del ciclo de vida de los productos…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Jazzplat Colombia S.A.Sjazzplat.co HQ: Bogotá, ColombiaReported employees: 1,001-5,000 | Bogotá, Colombia | 1,001-5,000 | Exact match | 649 contacts → |
“Somos Jazzplat Colombia, un innovador Centro de Atención al Cliente que forma parte de MASORANGE.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Global Contact Services GCSgcsagents.com HQ: Salisbury, NC, United StatesReported employees: 501-1,000 | Salisbury, NC, United States | 501-1,000 | Exact match | 542 contacts → |
“We are customer service experts.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Contactus Communicationscusc.com HQ: Columbus, OH, United StatesReported employees: 1,001-5,000 | Columbus, OH, United States | 1,001-5,000 | Exact match | 515 contacts → |
“ContactUs Communications is a U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Alvaria CXalvaria.com HQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 478 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ECE Consulting Groupececonsultinggroup.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 474 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Capita South Africacapita.com HQ: Cape Town, South AfricaReported employees: 1,001-5,000 | Cape Town, South Africa | 1,001-5,000 | Exact match | 451 contacts → |
“Capita is an award-winning contact centre service company with fully hosted global delivery centres trusted by global leading brands to transform their Customer Experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Qualityquality.co.ao HQ: Maputo, MozambiqueReported employees: 201-500 | Maputo, Mozambique | 201-500 | Exact match | 436 contacts → |
“Outsourcing de serviços de contact center, com atendimento multicanal.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Millennium 1 Solutionsmillennium1solutions.com HQ: Toronto, ON, CanadaReported employees: 1,001-5,000 | Toronto, ON, Canada | 1,001-5,000 | Exact match | 430 contacts → |
“Millennium1 Solutions is now NTT Business Process Outsourcing.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Astegicastegic.com HQ: Falls Church, VA, United StatesReported employees: 51-200 | Falls Church, VA, United States | 51-200 | Exact match | 415 contacts → |
“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Terseatersea.com HQ: Paris, FranceReported employees: 1,001-5,000 | Paris, France | 1,001-5,000 | Exact match | 395 contacts → |
“Tersea est le premier opérateur de centre de contact qui propose une solution originale et innovante et qui met tout son savoir faire à disposition de ses clients.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Callsouth S.Acallsouth.cl HQ: ChileReported employees: 201-500 | Chile | 201-500 | Exact match | 390 contacts → |
“Soluciones integrales de Contact Center.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Revanattec.com HQ: Englewood, CO, United StatesReported employees: 10001+ | Englewood, CO, United States | 10001+ | Exact match | 373 contacts → |
“Revana is now TTEC.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Blue Ocean Contact Centersblueocean.ca HQ: Halifax, NS, CanadaReported employees: 501-1,000 | Halifax, NS, Canada | 501-1,000 | Exact match | 367 contacts → |
“Here’s our ten-second elevator pitch: we provide affordable, onshore and/or nearshore, high-touch customized contact center solutions for brands who care deeply about the quality…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Anexa BPOanexabpo.com HQ: Benito Juárez, MexicoReported employees: 1,001-5,000 | Benito Juárez, Mexico | 1,001-5,000 | Exact match | 338 contacts → |
“29 años de experiencia brindando soluciones integrales de contact center que superen las expectativas de nuestros clientes, a través de un equipo altamente capacitado, tecnología…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Toscanateletoscana.com.br HQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 337 contacts → |
“Somos uma empresa de contact center que tem como foco a satisfação dos clientes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,631 company matches
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Quality assurance consulting companies for contact centers: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,628 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,631 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Quality assurance consulting companies for contact centers by location
16 lists · largest firstEvery Quality assurance consulting companies for contact centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quality assurance consulting companies for contact centers based in the United States512
- Quality assurance consulting companies for contact centers based in Brazil163
- Quality assurance consulting companies for contact centers based in the United Kingdom140
- Quality assurance consulting companies for contact centers based in India102
- Quality assurance consulting companies for contact centers based in France89
- Quality assurance consulting companies for contact centers based in Germany75
- Quality assurance consulting companies for contact centers based in the Netherlands71
- Quality assurance consulting companies for contact centers based in Canada69
- Quality assurance consulting companies for contact centers based in Mexico61
- Quality assurance consulting companies for contact centers based in Spain58
- Quality assurance consulting companies for contact centers based in Australia54
- Quality assurance consulting companies for contact centers based in South Africa34
- Quality assurance consulting companies for contact centers based in Türkiye31
- Quality assurance consulting companies for contact centers based in Sweden29
Cities
Questions about this company list
What does Exact match mean for quality assurance consulting companies for contact centers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many quality assurance consulting companies for contact centers did RevenueBase find worldwide?
The saved snapshot records 2,631 matching company records, 65,598 tracked contacts and 7,899 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 quality assurance consulting companies for contact centers worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/quality-assurance-consulting-companies-for-contact-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗