Company lists · Data refreshed September 2026

Top 25 Lead generation call center companies worldwide

Name: Lead generation call center companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 12,310 companies tracked

RevenueBase identified 12,310 company matches for lead generation call center companies worldwide as of September 2026 and tracks 123,214 professional contacts across them, including 12,091 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for lead generation call center companies 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 28, 2026. Country and city lists for lead generation call center companies 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

12,310Companies

123,214Contacts tracked

12,091Verified emails

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The 25 largest lead generation call center companies worldwide

Ranked by team size

Top 25 of 12,310 company matches for lead generation call center companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	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 28, 2026 · View company records in RevenueBase
2	Infocision Management Corporation	Exact match	Akron, OH, United StatesHQ recorded Sep 28, 2026	1,001-5,000	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 28, 2026 · View company records in RevenueBase
3	The Office Gurus	Exact match	St Petersburg, FL, RussiaHQ recorded Sep 28, 2026	1,001-5,000	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 28, 2026 · View company records in RevenueBase
4	Cience	Exact match	Miami, FL, United StatesHQ recorded Sep 28, 2026	201-500	1,068 contacts →
	Exact match “CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Inktel Contact Center Solutions	Exact match	Doral, FL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	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 28, 2026 · View company records in RevenueBase
6	Answernet	Exact match	Horsham, PA, United StatesHQ recorded Sep 28, 2026	501-1,000	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 28, 2026 · View company records in RevenueBase
7	S2w Media	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	806 contacts →
	Exact match “We are innovators, problem solvers, thought leaders, and above all else, a team.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Manlitics B2B Ites	Exact match	New York, United StatesHQ recorded Sep 28, 2026	501-1,000	750 contacts →
	Exact match “In an ERA of new and emerging digital mediums, we align our core expertise of today’s ever-changing technology with a clear understanding of traditional marketing methods without…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Talksure	Exact match	Durban, South AfricaHQ recorded Sep 28, 2026	501-1,000	718 contacts →
	Exact match “Established in 2010, Talksure has developed a reputation for being a respected financial services provider and outsource business services partner.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Salebuild	Exact match	Redwood City, CA, United StatesHQ recorded Sep 28, 2026	n/a	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 28, 2026 · View company records in RevenueBase
11	Vector	Exact match	Fortaleza, BrazilHQ recorded Sep 28, 2026	1,001-5,000	701 contacts →
	Exact match “A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Flexisales INC	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 28, 2026	201-500	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 28, 2026 · View company records in RevenueBase
13	Girnar Care	Exact match	Jaipur, IndiaHQ recorded Sep 28, 2026	501-1,000	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 28, 2026 · View company records in RevenueBase
14	Fastco	Exact match	Providencia, ChileHQ recorded Sep 28, 2026	1,001-5,000	623 contacts →
	Exact match “Impulsamos el éxito de nuestros clientes a través de soluciones personalizadas en Contact Center y experiencia al cliente.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Digitalzone	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	558 contacts →
	Exact match “Digitalzone is a global marketing and demand gen company dedicated to delivering compliant leads, exceptional customer satisfaction, and an end-to-end approach.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Telenet Marketing Solutions	Exact match	Athens, GA, IndiaHQ recorded Sep 28, 2026	201-500	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 28, 2026 · View company records in RevenueBase
17	Movingdneedle Pvt. LTD	Exact match	Sterling Heights, MI, United StatesHQ recorded Sep 28, 2026	51-200	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 28, 2026 · View company records in RevenueBase
18	Callbox INC	Exact match	Encino, CA, United StatesHQ recorded Sep 28, 2026	201-500	499 contacts →
	Exact match “Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Sep 28, 2026	51-200	455 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Proper Business Solutions	Exact match	Cairo, EgyptHQ recorded Sep 28, 2026	1,001-5,000	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 28, 2026 · View company records in RevenueBase
21	UTS Marketing Solutions	Exact match	Bandar Kuala Lumpur, MalaysiaHQ recorded Sep 28, 2026	1,001-5,000	442 contacts →
	Exact match “UTS is one of Malaysia’s leading outsourced contact centre service providers – managing and operating outbound services for several financial institutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Qualifa	Exact match	Brighton, United KingdomHQ recorded Sep 28, 2026	51-200	440 contacts →
	Exact match “We are an award winning multilingual lead generation and market research service provider for B2B publishing, marketing, events and tech companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Alliance Pdms	Exact match	Hurst, TX, United StatesHQ recorded Sep 28, 2026	51-200	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 28, 2026 · View company records in RevenueBase
24	MVF	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	401 contacts →
	Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Touchstone Communications	Exact match	Fort Worth, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	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 28, 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 “lead generation call center companies”. 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 12,310 lead generation call center companies worldwide

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Lead generation call center companies worldwide at a glance

As of Sep 28, 2026

9.8%Verified-email coverage

10.0Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · Pune

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

6,327

11-50

3,926

51-200

1,481

201-500

390

501-1,000

100

1,001-5,000

5,001-10,000

10001+

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 lead generation call center companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “lead generation call center companies” 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 12,091 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 28, 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.

Lead generation call center companies by location

56 lists · largest first

Every Lead generation call center companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “lead generation call center companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many lead generation call center companies are there worldwide?

RevenueBase identified 12,310 company matches for lead generation call center companies 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?

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

Which country has the most lead generation call center companies?

The United States leads with 2,917 companies, followed by India (1,021) and the United Kingdom (892). Every lead generation call center companies list by country and city is linked on this page.

Which city has the most lead generation call center companies?

Pune leads with 266 company records, followed by London (263) and New York (128).

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 12,091 professional contacts with verified work emails tracked across these 12,310 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 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.