Company lists · Data refreshed September 2026
Top 25 Qualified lead call centers worldwide
RevenueBase identified 7,307 company matches for qualified lead call centers worldwide as of September 2026 and tracks 70,430 professional contacts across them, including 6,540 with verified work emails. The United States is the largest market and Pune the largest hub.
This list covers company matches for qualified lead call 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 qualified lead call 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 qualified lead call centers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,198 contacts → | ||||
Exact match “The Office Gurus (TOG) is a global call center and business process outsource provider of customer care, telemarketing, lead generation, appointment setting, order entry, accounts…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 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 29, 2026 · View company records in RevenueBase | |||||
| 3 | 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 29, 2026 · View company records in RevenueBase | |||||
| 4 | 708 contacts → | ||||
Exact match “Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 697 contacts → | ||||
Exact match “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 649 contacts → | ||||
Exact match “We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 553 contacts → | ||||
Exact match “From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 528 contacts → | ||||
Exact match “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 455 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 447 contacts → | ||||
Exact match “Proper Business solutions is offering a comprehensive suite of customer care call center services, outbound and lead generation, back-office and data processing solutions to…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 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 29, 2026 · View company records in RevenueBase | |||||
| 12 | 393 contacts → | ||||
Exact match “Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 387 contacts → | ||||
Exact match “TLM empowers businesses to generate revenue through their qualified leads.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 380 contacts → | ||||
Exact match “Beyond Codes is a global B2B lead generation and appointment-setting agency trusted by some of the world's leading technology companies to build enterprise sales pipeline.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 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 29, 2026 · View company records in RevenueBase | |||||
| 16 | 339 contacts → | ||||
Exact match “Inventive SMi was founded in 2008 with the goal of providing enterprise-grade communications solutions to businesses of all sizes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 291 contacts → | ||||
Exact match “The market knows us as the leader in appointment setting.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 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 29, 2026 · View company records in RevenueBase | |||||
| 19 | 256 contacts → | ||||
Exact match “Boomsourcing (A Fusion CX Company) is a call center established in 2007.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 247 contacts → | ||||
Exact match “Rocket Connections is a sales and support platform specializing in contact center services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 243 contacts → | ||||
Exact match “The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 230 contacts → | ||||
Exact match “GROW is a full-service marketing agency passionate about helping B2B companies achieve their goals.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 223 contacts → | ||||
Exact match “Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 216 contacts → | ||||
Exact match “Schedule your FREE Consultation here: http://bit.ly/2gUckQb Anomaly Squared is a contact center services provider.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 209 contacts → | ||||
Exact match “Belkins is the #1 ranked appointment-setting agency in the USA for 5 years in a row, driving results for businesses in 50+ industries across the globe.” 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 “qualified lead call 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 7,307 qualified lead call centers worldwide
See the full list, filter by size, metro and specialty, and access 6,540 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Qualified lead call 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 qualified lead call centers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “qualified lead call centers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. 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 6,540 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.
Qualified lead call centers by location
34 lists · largest firstEvery Qualified lead call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Qualified lead call centers based in the United States1,708
- Qualified lead call centers based in India662
- Qualified lead call centers based in the United Kingdom576
- Qualified lead call centers based in France200
- Qualified lead call centers based in the Netherlands178
- Qualified lead call centers based in Canada176
- Qualified lead call centers based in Germany157
- Qualified lead call centers based in Australia150
- Qualified lead call centers based in Brazil118
- Qualified lead call centers based in the Philippines107
- Qualified lead call centers based in Spain95
- Qualified lead call centers based in Italy74
- Qualified lead call centers based in South Africa57
- Qualified lead call centers based in the United Arab Emirates56
- Qualified lead call centers based in Denmark44
- Qualified lead call centers based in Poland42
- Qualified lead call centers based in Sweden40
- Qualified lead call centers based in Israel36
- Qualified lead call centers based in Belgium31
- Qualified lead call centers based in Switzerland25
Cities
- Qualified lead call centers based in Pune, India175
- Qualified lead call centers based in London, United Kingdom151
- Qualified lead call centers based in New York, United States69
- Qualified lead call centers based in Paris, France61
- Qualified lead call centers based in Sheridan, United States59
- Qualified lead call centers based in Miami, United States50
- Qualified lead call centers based in Los Angeles, United States49
- Qualified lead call centers based in New Delhi, India39
- Qualified lead call centers based in Toronto, Canada39
- Qualified lead call centers based in Sydney, Australia35
- Qualified lead call centers based in San Francisco, United States34
- Qualified lead call centers based in Las Vegas, United States30
- Qualified lead call centers based in Melbourne, Australia28
- Qualified lead call centers based in San Diego, United States27
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 “qualified lead call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many qualified lead call centers are there worldwide?
RevenueBase identified 7,307 company matches for qualified lead call 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?
The Office Gurus tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most qualified lead call centers?
The United States leads with 1,708 companies, followed by India (662) and the United Kingdom (576). Every qualified lead call centers list by country and city is linked on this page.
Which city has the most qualified lead call centers?
Pune leads with 175 company records, followed by London (154) and Rawalpindi (73).
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 6,540 professional contacts with verified work emails tracked across these 7,307 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 7,307 qualified lead call 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 qualified lead call 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 7,307 matching company records for qualified lead call centers worldwide, with 70,430 tracked contacts and 6,540 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 qualified lead call 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 | HQ: St Petersburg, FL, RussiaReported employees: 1,001-5,000 | St Petersburg, FL, Russia | 1,001-5,000 | Exact match | 1,198 contacts → |
“The Office Gurus (TOG) is a global call center and business process outsource provider of customer care, telemarketing, lead generation, appointment setting, order entry, accounts…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Redwood City, CA, United StatesReported employees: Not recorded | Redwood City, CA, United States | Not recorded | Exact match | 708 contacts → |
“Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Las Vegas, NV, United StatesReported employees: 201-500 | Las Vegas, NV, United States | 201-500 | Exact match | 697 contacts → |
“Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Jaipur, IndiaReported employees: 501-1,000 | Jaipur, India | 501-1,000 | Exact match | 649 contacts → |
“We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Athens, GA, IndiaReported employees: 201-500 | Athens, GA, India | 201-500 | Exact match | 553 contacts → |
“From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Sterling Heights, MI, United StatesReported employees: 51-200 | Sterling Heights, MI, United States | 51-200 | Exact match | 528 contacts → |
“movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 455 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | HQ: Cairo, EgyptReported employees: 1,001-5,000 | Cairo, Egypt | 1,001-5,000 | Exact match | 447 contacts → |
“Proper Business solutions is offering a comprehensive suite of customer care call center services, outbound and lead generation, back-office and data processing solutions to…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Fort Worth, TX, United StatesReported employees: 501-1,000 | Fort Worth, TX, United States | 501-1,000 | Exact match | 393 contacts → |
“Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Nagpur, IndiaReported employees: 51-200 | Nagpur, India | 51-200 | Exact match | 387 contacts → |
“TLM empowers businesses to generate revenue through their qualified leads.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Simi Valley, CA, United StatesReported employees: 201-500 | Simi Valley, CA, United States | 201-500 | Exact match | 380 contacts → |
“Beyond Codes is a global B2B lead generation and appointment-setting agency trusted by some of the world's leading technology companies to build enterprise sales pipeline.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Inventive SMIinventive-smi.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 339 contacts → |
“Inventive SMi was founded in 2008 with the goal of providing enterprise-grade communications solutions to businesses of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Chelmsford, MA, United StatesReported employees: 201-500 | Chelmsford, MA, United States | 201-500 | Exact match | 291 contacts → |
“The market knows us as the leader in appointment setting.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Lehi, UT, United StatesReported employees: 501-1,000 | Lehi, UT, United States | 501-1,000 | Exact match | 256 contacts → |
“Boomsourcing (A Fusion CX Company) is a call center established in 2007.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Rocket Connectionsrocketmortgage.com HQ: Detroit, MI, United StatesReported employees: 1,001-5,000 | Detroit, MI, United States | 1,001-5,000 | Exact match | 247 contacts → |
“Rocket Connections is a sales and support platform specializing in contact center services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Brighton, United KingdomReported employees: 201-500 | Brighton, United Kingdom | 201-500 | Exact match | 243 contacts → |
“The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Jerusalem, IsraelReported employees: Not recorded | Jerusalem, Israel | Not recorded | Exact match | 230 contacts → |
“GROW is a full-service marketing agency passionate about helping B2B companies achieve their goals.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Pensacola, FL, United StatesReported employees: 51-200 | Pensacola, FL, United States | 51-200 | Exact match | 223 contacts → |
“Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Greensboro, NC, United StatesReported employees: 201-500 | Greensboro, NC, United States | 201-500 | Exact match | 216 contacts → |
“Schedule your FREE Consultation here: http://bit.ly/2gUckQb Anomaly Squared is a contact center services provider.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Dover, DE, United StatesReported employees: 201-500 | Dover, DE, United States | 201-500 | Exact match | 209 contacts → |
“Belkins is the #1 ranked appointment-setting agency in the USA for 5 years in a row, driving results for businesses in 50+ industries across the globe.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 7,307 company matches
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Qualified lead call 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
7,297 records in the displayed employee bands.
10 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 7,307 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 ↗
Qualified lead call centers by location
34 lists · largest firstEvery Qualified lead call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Qualified lead call centers based in the United States1,708
- Qualified lead call centers based in India662
- Qualified lead call centers based in the United Kingdom576
- Qualified lead call centers based in France200
- Qualified lead call centers based in the Netherlands178
- Qualified lead call centers based in Canada176
- Qualified lead call centers based in Germany157
- Qualified lead call centers based in Australia150
- Qualified lead call centers based in Brazil118
- Qualified lead call centers based in the Philippines107
- Qualified lead call centers based in Spain95
- Qualified lead call centers based in Italy74
- Qualified lead call centers based in South Africa57
- Qualified lead call centers based in the United Arab Emirates56
- Qualified lead call centers based in Denmark44
- Qualified lead call centers based in Poland42
- Qualified lead call centers based in Sweden40
- Qualified lead call centers based in Israel36
- Qualified lead call centers based in Belgium31
- Qualified lead call centers based in Switzerland25
Cities
- Qualified lead call centers based in Pune, India175
- Qualified lead call centers based in London, United Kingdom151
- Qualified lead call centers based in New York, United States69
- Qualified lead call centers based in Paris, France61
- Qualified lead call centers based in Sheridan, United States59
- Qualified lead call centers based in Miami, United States50
- Qualified lead call centers based in Los Angeles, United States49
- Qualified lead call centers based in New Delhi, India39
- Qualified lead call centers based in Toronto, Canada39
- Qualified lead call centers based in Sydney, Australia35
- Qualified lead call centers based in San Francisco, United States34
- Qualified lead call centers based in Las Vegas, United States30
- Qualified lead call centers based in Melbourne, Australia28
- Qualified lead call centers based in San Diego, United States27
Questions about this company list
What does Exact match mean for qualified lead call 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 qualified lead call centers did RevenueBase find worldwide?
The saved snapshot records 7,307 matching company records, 70,430 tracked contacts and 6,540 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.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 qualified lead call centers worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/qualified-lead-call-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 qualified lead call centers worldwide
RevenueBase records 7,307 matching company records for qualified lead call centers worldwide, with 70,430 tracked contacts and 6,540 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 qualified lead call 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 | HQ: St Petersburg, FL, RussiaReported employees: 1,001-5,000 | St Petersburg, FL, Russia | 1,001-5,000 | Exact match | 1,198 contacts → |
“The Office Gurus (TOG) is a global call center and business process outsource provider of customer care, telemarketing, lead generation, appointment setting, order entry, accounts…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Redwood City, CA, United StatesReported employees: Not recorded | Redwood City, CA, United States | Not recorded | Exact match | 708 contacts → |
“Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Las Vegas, NV, United StatesReported employees: 201-500 | Las Vegas, NV, United States | 201-500 | Exact match | 697 contacts → |
“Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Jaipur, IndiaReported employees: 501-1,000 | Jaipur, India | 501-1,000 | Exact match | 649 contacts → |
“We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Athens, GA, IndiaReported employees: 201-500 | Athens, GA, India | 201-500 | Exact match | 553 contacts → |
“From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Sterling Heights, MI, United StatesReported employees: 51-200 | Sterling Heights, MI, United States | 51-200 | Exact match | 528 contacts → |
“movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 455 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | HQ: Cairo, EgyptReported employees: 1,001-5,000 | Cairo, Egypt | 1,001-5,000 | Exact match | 447 contacts → |
“Proper Business solutions is offering a comprehensive suite of customer care call center services, outbound and lead generation, back-office and data processing solutions to…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Fort Worth, TX, United StatesReported employees: 501-1,000 | Fort Worth, TX, United States | 501-1,000 | Exact match | 393 contacts → |
“Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Nagpur, IndiaReported employees: 51-200 | Nagpur, India | 51-200 | Exact match | 387 contacts → |
“TLM empowers businesses to generate revenue through their qualified leads.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Simi Valley, CA, United StatesReported employees: 201-500 | Simi Valley, CA, United States | 201-500 | Exact match | 380 contacts → |
“Beyond Codes is a global B2B lead generation and appointment-setting agency trusted by some of the world's leading technology companies to build enterprise sales pipeline.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Inventive SMIinventive-smi.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 339 contacts → |
“Inventive SMi was founded in 2008 with the goal of providing enterprise-grade communications solutions to businesses of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Chelmsford, MA, United StatesReported employees: 201-500 | Chelmsford, MA, United States | 201-500 | Exact match | 291 contacts → |
“The market knows us as the leader in appointment setting.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Lehi, UT, United StatesReported employees: 501-1,000 | Lehi, UT, United States | 501-1,000 | Exact match | 256 contacts → |
“Boomsourcing (A Fusion CX Company) is a call center established in 2007.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Rocket Connectionsrocketmortgage.com HQ: Detroit, MI, United StatesReported employees: 1,001-5,000 | Detroit, MI, United States | 1,001-5,000 | Exact match | 247 contacts → |
“Rocket Connections is a sales and support platform specializing in contact center services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Brighton, United KingdomReported employees: 201-500 | Brighton, United Kingdom | 201-500 | Exact match | 243 contacts → |
“The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Jerusalem, IsraelReported employees: Not recorded | Jerusalem, Israel | Not recorded | Exact match | 230 contacts → |
“GROW is a full-service marketing agency passionate about helping B2B companies achieve their goals.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Pensacola, FL, United StatesReported employees: 51-200 | Pensacola, FL, United States | 51-200 | Exact match | 223 contacts → |
“Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Greensboro, NC, United StatesReported employees: 201-500 | Greensboro, NC, United States | 201-500 | Exact match | 216 contacts → |
“Schedule your FREE Consultation here: http://bit.ly/2gUckQb Anomaly Squared is a contact center services provider.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Dover, DE, United StatesReported employees: 201-500 | Dover, DE, United States | 201-500 | Exact match | 209 contacts → |
“Belkins is the #1 ranked appointment-setting agency in the USA for 5 years in a row, driving results for businesses in 50+ industries across the globe.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 7,307 company matches
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Qualified lead call 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
7,297 records in the displayed employee bands.
10 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 7,307 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.
Publisher-reported method study
The published RevenueBase SmartSearch benchmark
86% good or better at Exact
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. It reports 86% of Exact matches judged good or better, and 77% for a 240-pair sample of one- or two-word categories. This evaluates the method across study queries rather than auditing this individual list.
Read the study and full methodology ↗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 ↗
Qualified lead call centers by location
34 lists · largest firstEvery Qualified lead call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Qualified lead call centers based in the United States1,708
- Qualified lead call centers based in India662
- Qualified lead call centers based in the United Kingdom576
- Qualified lead call centers based in France200
- Qualified lead call centers based in the Netherlands178
- Qualified lead call centers based in Canada176
- Qualified lead call centers based in Germany157
- Qualified lead call centers based in Australia150
- Qualified lead call centers based in Brazil118
- Qualified lead call centers based in the Philippines107
- Qualified lead call centers based in Spain95
- Qualified lead call centers based in Italy74
- Qualified lead call centers based in South Africa57
- Qualified lead call centers based in the United Arab Emirates56
- Qualified lead call centers based in Denmark44
- Qualified lead call centers based in Poland42
- Qualified lead call centers based in Sweden40
- Qualified lead call centers based in Israel36
- Qualified lead call centers based in Belgium31
- Qualified lead call centers based in Switzerland25
Cities
- Qualified lead call centers based in Pune, India175
- Qualified lead call centers based in London, United Kingdom151
- Qualified lead call centers based in New York, United States69
- Qualified lead call centers based in Paris, France61
- Qualified lead call centers based in Sheridan, United States59
- Qualified lead call centers based in Miami, United States50
- Qualified lead call centers based in Los Angeles, United States49
- Qualified lead call centers based in New Delhi, India39
- Qualified lead call centers based in Toronto, Canada39
- Qualified lead call centers based in Sydney, Australia35
- Qualified lead call centers based in San Francisco, United States34
- Qualified lead call centers based in Las Vegas, United States30
- Qualified lead call centers based in Melbourne, Australia28
- Qualified lead call centers based in San Diego, United States27
Questions about this company list
What does Exact match mean for qualified lead call 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 qualified lead call centers did RevenueBase find worldwide?
The saved snapshot records 7,307 matching company records, 70,430 tracked contacts and 6,540 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 qualified lead call centers worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/qualified-lead-call-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗