Company lists · Data refreshed September 2026
Top 25 Call center optimization firms based in the United States
RevenueBase identified 886 company matches for call center optimization firms associated with the United States as of September 2026 and tracks 94,666 professional contacts across them, including 10,080 with verified work emails. Atlanta is the largest hub.
This list covers company matches for call center optimization firms 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.
The 25 largest call center optimization firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 30,990 contacts → | ||||
Exact match “Foundever® is the next-generation service leader reinventing customer experience (CX).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 17,310 contacts → | ||||
Exact match “iQor is a trusted partner in customer experience solutions for global brands and a portfolio company of Mill Point Capital.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 4,785 contacts → | ||||
Exact match “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 3,122 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 2,774 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 | |||||
| 6 | 1,777 contacts → | ||||
Exact match “OP360, part of iQor CXBPO™, is a trusted partner in intelligent customer experience solutions for global brands.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 1,764 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 902 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 | |||||
| 9 | 883 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 878 contacts → | ||||
Exact match “Decades of expertise distilled into innovative workforce tools.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 877 contacts → | ||||
Exact match “CBE Companies is the parent organization of CBE Customer Solutions and CBE Group.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 792 contacts → | ||||
Exact match “Focus was founded in 1995.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 708 contacts → | ||||
Exact match “ClearSource at its core is a customer experience company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 542 contacts → | ||||
Exact match “We are customer service experts.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 515 contacts → | ||||
Exact match “ContactUs Communications is a U.S.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 513 contacts → | ||||
Exact match “American Customer Care specializes in providing individualized contact with your customers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 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 27, 2026 · View company records in RevenueBase | |||||
| 18 | 458 contacts → | ||||
Exact match “TLCx is a next-generation CX transformation partner - tech-powered, human-first, and outcomes-driven.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 431 contacts → | ||||
Exact match “About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 428 contacts → | ||||
Exact match “Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 373 contacts → | ||||
Exact match “Revana is now TTEC.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 354 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 | |||||
| 23 | 329 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 27, 2026 · View company records in RevenueBase | |||||
| 24 | 307 contacts → | ||||
Exact match “TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 289 contacts → | ||||
Exact match “Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…” Recorded in the RevenueBase company graph · Sep 27, 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 “call center optimization firms”. 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 886 call center optimization firms based in the United States
See the full list, filter by size, metro and specialty, and access 10,080 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Call center optimization firms based in the United States at a glance
As of Sep 27, 2026Companies by employee count
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 886 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 “call center optimization firms” 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 10,080 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 “call center optimization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many call center optimization firms are there based in the United States?
RevenueBase identified 886 company matches for call center optimization firms 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?
Foundever tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most call center optimization firms?
Atlanta leads with 20 company records, followed by Phoenix (20) and Miami (19).
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 10,080 professional contacts with verified work emails tracked across these 886 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 886 call center optimization firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Call center optimization firms by geography
- Call center optimization firms based in Argentina
- Call center optimization firms based in Australia
- Call center optimization firms based in Brazil
- Call center optimization firms based in Canada
- Call center optimization firms based in Chile
- Call center optimization firms based in France
- Call center optimization firms based in Germany
- Call center optimization firms based in India
- Call center optimization firms based in Israel
- Call center optimization firms based in Italy
- Call center optimization firms based in Mexico
- Call center optimization firms based in the Netherlands
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Call center optimization firms based in Argentina
- Call center optimization firms based in Australia
- Call center optimization firms based in Brazil
- Call center optimization firms based in Canada
- Call center optimization firms based in Chile
- Call center optimization firms based in France
Company intelligence · public preview
Top 25 call center optimization firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 886 matching company records for call center optimization firms based in the United States, with 94,666 tracked contacts and 10,080 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 27, 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 call center optimization firms based in the United States
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 |  Foundeverfoundever.comHQ: Miami, FL, United StatesReported employees: 10001+ | Miami, FL, United States | 10001+ | Exact match | 30,990 contacts → |
“Foundever® is the next-generation service leader reinventing customer experience (CX).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  IQORiqor.comHQ: Fort Lauderdale, FL, United StatesReported employees: 10001+ | Fort Lauderdale, FL, United States | 10001+ | Exact match | 17,310 contacts → |
“iQor is a trusted partner in customer experience solutions for global brands and a portfolio company of Mill Point Capital.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Fusion CXfusioncx.comHQ: Norcross, GA, United StatesReported employees: 10001+ | Norcross, GA, United States | 10001+ | Exact match | 4,785 contacts → |
“At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Telvistatelvista.comHQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 3,122 contacts → |
“Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Advanced Call Center Technologies, LLCacttoday.comHQ: Berwyn, PA, United StatesReported employees: 5,001-10,000 | Berwyn, PA, United States | 5,001-10,000 | Exact match | 2,774 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Op360 Officepartners360op360.comHQ: Ridgefield, CT, United StatesReported employees: 1,001-5,000 | Ridgefield, CT, United States | 1,001-5,000 | Exact match | 1,777 contacts → |
“OP360, part of iQor CXBPO™, is a trusted partner in intelligent customer experience solutions for global brands.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Infocision Management Corporationinfocision.comHQ: Akron, OH, United StatesReported employees: 1,001-5,000 | Akron, OH, United States | 1,001-5,000 | Exact match | 1,764 contacts → |
“InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Inktel Contact Center Solutionsinktel.comHQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 902 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Answernetanswernet.comHQ: Horsham, PA, United StatesReported employees: 501-1,000 | Horsham, PA, United States | 501-1,000 | Exact match | 883 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Aspect Softwareaspect.comHQ: Boulder, CO, United StatesReported employees: 1,001-5,000 | Boulder, CO, United States | 1,001-5,000 | Exact match | 878 contacts → |
“Decades of expertise distilled into innovative workforce tools.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  CBE Companiescbecompanies.comHQ: Cedar Falls, IA, United StatesReported employees: 1,001-5,000 | Cedar Falls, IA, United States | 1,001-5,000 | Exact match | 877 contacts → |
“CBE Companies is the parent organization of CBE Customer Solutions and CBE Group.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Focus Servicesfocusservices.comHQ: Roy, UT, United StatesReported employees: 1,001-5,000 | Roy, UT, United States | 1,001-5,000 | Exact match | 792 contacts → |
“Focus was founded in 1995.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Clearsource BPOclearsourcebpo.comHQ: Sandy, UT, United StatesReported employees: 1,001-5,000 | Sandy, UT, United States | 1,001-5,000 | Exact match | 708 contacts → |
“ClearSource at its core is a customer experience company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  American Customer Careamericancustomercare.comHQ: Bristol, CT, United StatesReported employees: 1,001-5,000 | Bristol, CT, United States | 1,001-5,000 | Exact match | 513 contacts → |
“American Customer Care specializes in providing individualized contact with your customers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  TLCXtlcx.comHQ: Cedar Rapids, IA, United StatesReported employees: 1,001-5,000 | Cedar Rapids, IA, United States | 1,001-5,000 | Exact match | 458 contacts → |
“TLCx is a next-generation CX transformation partner - tech-powered, human-first, and outcomes-driven.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Ansafone Contact Centersansafone.comHQ: Santa Ana, CA, United StatesReported employees: 501-1,000 | Santa Ana, CA, United States | 501-1,000 | Exact match | 431 contacts → |
“About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Alliance Pdmsalliancedms.comHQ: Hurst, TX, United StatesReported employees: 51-200 | Hurst, TX, United States | 51-200 | Exact match | 428 contacts → |
“Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  The Connection Contact Centertheconnectioncc.comHQ: Bloomington, MN, United StatesReported employees: 1,001-5,000 | Bloomington, MN, United States | 1,001-5,000 | Exact match | 354 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Five Star Call Centersfivestarcallcenters.com HQ: Sioux Falls, SD, United StatesReported employees: 1,001-5,000 | Sioux Falls, SD, United States | 1,001-5,000 | Exact match | 329 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Teledirect Call Centersteledirect.comHQ: Sacramento, CA, United StatesReported employees: 201-500 | Sacramento, CA, United States | 201-500 | Exact match | 307 contacts → |
“TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Calltend INCcalltend.comHQ: Los Angeles, TX, United StatesReported employees: 51-200 | Los Angeles, TX, United States | 51-200 | Exact match | 289 contacts → |
“Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 886 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Call center optimization firms: dataset insights
September 27, 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
885 records in the displayed employee bands.
1 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 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 886 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 27, 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 ↗
Questions about this company list
What does Exact match mean for call center optimization firms?
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 call center optimization firms did RevenueBase find based in the United States?
The saved snapshot records 886 matching company records, 94,666 tracked contacts and 10,080 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 27, 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.
Related lists
Call center optimization firms by geography
- Call center optimization firms based in Argentina
- Call center optimization firms based in Australia
- Call center optimization firms based in Brazil
- Call center optimization firms based in Canada
- Call center optimization firms based in Chile
- Call center optimization firms based in France
- Call center optimization firms based in Germany
- Call center optimization firms based in India
- Call center optimization firms based in Israel
- Call center optimization firms based in Italy
- Call center optimization firms based in Mexico
- Call center optimization firms based in the Netherlands
Cite this list
RevenueBase Data Team. Top 25 call center optimization firms based in the United States. Snapshot: September 27, 2026. https://revenuebase.ai/companies/call-center-optimization-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Call center optimization firms based in Argentina
- Call center optimization firms based in Australia
- Call center optimization firms based in Brazil
- Call center optimization firms based in Canada
- Call center optimization firms based in Chile
- Call center optimization firms based in France
Company intelligence · public preview
Top 25 call center optimization firms based in the United States
RevenueBase records 886 matching company records for call center optimization firms based in the United States, with 94,666 tracked contacts and 10,080 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 27, 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 call center optimization firms based in the United States
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 | Foundeverfoundever.com HQ: Miami, FL, United StatesReported employees: 10001+ | Miami, FL, United States | 10001+ | Exact match | 30,990 contacts → |
“Foundever® is the next-generation service leader reinventing customer experience (CX).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | IQORiqor.com HQ: Fort Lauderdale, FL, United StatesReported employees: 10001+ | Fort Lauderdale, FL, United States | 10001+ | Exact match | 17,310 contacts → |
“iQor is a trusted partner in customer experience solutions for global brands and a portfolio company of Mill Point Capital.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Fusion CXfusioncx.com HQ: Norcross, GA, United StatesReported employees: 10001+ | Norcross, GA, United States | 10001+ | Exact match | 4,785 contacts → |
“At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Telvistatelvista.com HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 3,122 contacts → |
“Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Advanced Call Center Technologies, LLCacttoday.com HQ: Berwyn, PA, United StatesReported employees: 5,001-10,000 | Berwyn, PA, United States | 5,001-10,000 | Exact match | 2,774 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Op360 Officepartners360op360.com HQ: Ridgefield, CT, United StatesReported employees: 1,001-5,000 | Ridgefield, CT, United States | 1,001-5,000 | Exact match | 1,777 contacts → |
“OP360, part of iQor CXBPO™, is a trusted partner in intelligent customer experience solutions for global brands.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Infocision Management Corporationinfocision.com HQ: Akron, OH, United StatesReported employees: 1,001-5,000 | Akron, OH, United States | 1,001-5,000 | Exact match | 1,764 contacts → |
“InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Inktel Contact Center Solutionsinktel.com HQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 902 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Answernetanswernet.com HQ: Horsham, PA, United StatesReported employees: 501-1,000 | Horsham, PA, United States | 501-1,000 | Exact match | 883 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Aspect Softwareaspect.com HQ: Boulder, CO, United StatesReported employees: 1,001-5,000 | Boulder, CO, United States | 1,001-5,000 | Exact match | 878 contacts → |
“Decades of expertise distilled into innovative workforce tools.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | CBE Companiescbecompanies.com HQ: Cedar Falls, IA, United StatesReported employees: 1,001-5,000 | Cedar Falls, IA, United States | 1,001-5,000 | Exact match | 877 contacts → |
“CBE Companies is the parent organization of CBE Customer Solutions and CBE Group.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Focus Servicesfocusservices.com HQ: Roy, UT, United StatesReported employees: 1,001-5,000 | Roy, UT, United States | 1,001-5,000 | Exact match | 792 contacts → |
“Focus was founded in 1995.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Clearsource BPOclearsourcebpo.com HQ: Sandy, UT, United StatesReported employees: 1,001-5,000 | Sandy, UT, United States | 1,001-5,000 | Exact match | 708 contacts → |
“ClearSource at its core is a customer experience company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | American Customer Careamericancustomercare.com HQ: Bristol, CT, United StatesReported employees: 1,001-5,000 | Bristol, CT, United States | 1,001-5,000 | Exact match | 513 contacts → |
“American Customer Care specializes in providing individualized contact with your customers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TLCXtlcx.com HQ: Cedar Rapids, IA, United StatesReported employees: 1,001-5,000 | Cedar Rapids, IA, United States | 1,001-5,000 | Exact match | 458 contacts → |
“TLCx is a next-generation CX transformation partner - tech-powered, human-first, and outcomes-driven.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Ansafone Contact Centersansafone.com HQ: Santa Ana, CA, United StatesReported employees: 501-1,000 | Santa Ana, CA, United States | 501-1,000 | Exact match | 431 contacts → |
“About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Alliance Pdmsalliancedms.com HQ: Hurst, TX, United StatesReported employees: 51-200 | Hurst, TX, United States | 51-200 | Exact match | 428 contacts → |
“Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The Connection Contact Centertheconnectioncc.com HQ: Bloomington, MN, United StatesReported employees: 1,001-5,000 | Bloomington, MN, United States | 1,001-5,000 | Exact match | 354 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Five Star Call Centersfivestarcallcenters.com HQ: Sioux Falls, SD, United StatesReported employees: 1,001-5,000 | Sioux Falls, SD, United States | 1,001-5,000 | Exact match | 329 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Teledirect Call Centersteledirect.com HQ: Sacramento, CA, United StatesReported employees: 201-500 | Sacramento, CA, United States | 201-500 | Exact match | 307 contacts → |
“TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Calltend INCcalltend.com HQ: Los Angeles, TX, United StatesReported employees: 51-200 | Los Angeles, TX, United States | 51-200 | Exact match | 289 contacts → |
“Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 886 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Call center optimization firms: dataset insights
September 27, 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
885 records in the displayed employee bands.
1 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 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 886 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 27, 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 ↗
Questions about this company list
What does Exact match mean for call center optimization firms?
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 call center optimization firms did RevenueBase find based in the United States?
The saved snapshot records 886 matching company records, 94,666 tracked contacts and 10,080 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 27, 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.
Related lists
Call center optimization firms by geography
- Call center optimization firms based in Argentina
- Call center optimization firms based in Australia
- Call center optimization firms based in Brazil
- Call center optimization firms based in Canada
- Call center optimization firms based in Chile
- Call center optimization firms based in France
- Call center optimization firms based in Germany
- Call center optimization firms based in India
- Call center optimization firms based in Israel
- Call center optimization firms based in Italy
- Call center optimization firms based in Mexico
- Call center optimization firms based in the Netherlands
Cite this list
RevenueBase Data Team. Top 25 call center optimization firms based in the United States. Snapshot: September 27, 2026. https://revenuebase.ai/companies/call-center-optimization-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Call center optimization firms based in Argentina
- Call center optimization firms based in Australia
- Call center optimization firms based in Brazil
- Call center optimization firms based in Canada
- Call center optimization firms based in Chile
- Call center optimization firms based in France