Company lists · Data refreshed November 2026

Top 25 Business development call centers worldwide

Name: Business development call centers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 10,128 companies tracked

RevenueBase identified 10,128 company matches for business development call centers worldwide as of November 2026 and tracks 167,276 professional contacts across them, including 12,558 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for business development 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 November 5, 2026. Country and city lists for business development 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

10,128Companies

167,276Contacts tracked

12,558Verified emails

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The 25 largest business development call centers worldwide

Ranked by team size

Top 25 of 10,128 company matches for business development call centers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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	Sercom	Exact match	Taboão Da Serra, BrazilHQ recorded Nov 5, 2026	5,001-10,000	4,283 contacts →
	Exact match “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Nov 5, 2026	5,001-10,000	3,116 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 · Nov 5, 2026 · View company records in RevenueBase
3	CAT Technologies Argentina	Exact match	Buenos Aires, FL, ArgentinaHQ recorded Nov 5, 2026	1,001-5,000	2,460 contacts →
	Exact match “Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Infocision Management Corporation	Exact match	Akron, OH, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,947 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 · Nov 5, 2026 · View company records in RevenueBase
5	Km2 Solutions	Exact match	Boca Raton, United StatesHQ recorded Nov 5, 2026	5,001-10,000	1,921 contacts →
	Exact match “Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	American Call Center	Exact match	Guayaquil, EcuadorHQ recorded Nov 5, 2026	1,001-5,000	1,370 contacts →
	Exact match “We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	The Office Gurus	Exact match	St Petersburg, RussiaHQ recorded Nov 5, 2026	1,001-5,000	1,318 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 · Nov 5, 2026 · View company records in RevenueBase
8	Btcc Call Center	Exact match	Goiânia, BrazilHQ recorded Nov 5, 2026	10001+	1,225 contacts →
	Exact match “Em breve uma nova página da BTCC Conexão Cliente.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	crystel.co	Exact match	Amman, JordanHQ recorded Nov 5, 2026	1,001-5,000	1,223 contacts →
	Exact match “Crystel emerged as a leading Outsourcing Service Provider (OSP) since its establishment in Jordan in early 2007.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Evoltis	Exact match	Córdoba, ArgentinaHQ recorded Nov 5, 2026	1,001-5,000	1,185 contacts →
	Exact match “At Evoltis, we collaborate to improve every interaction with your customers, driving Innovation through our Contact Center & BPO and Technology Development services to achieve a…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Hrhnext Services Limited	Exact match	Hyderabad, IndiaHQ recorded Nov 5, 2026	1,001-5,000	1,132 contacts →
	Exact match “Even the markets know that we’re the good call’!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	B2s Business Support Services	Exact match	Gennevilliers Cedex, FranceHQ recorded Nov 5, 2026	10001+	1,087 contacts →
	Exact match “Expert de la relation client depuis 1996, b2s est le N°1 de l’externalisation de votre relation client en qualité délivrée.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Inktel Contact Center Solutions	Exact match	Doral, FL, United StatesHQ recorded Nov 5, 2026	1,001-5,000	969 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 · Nov 5, 2026 · View company records in RevenueBase
14	Answernet	Exact match	Horsham, PA, United StatesHQ recorded Nov 5, 2026	501-1,000	946 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 · Nov 5, 2026 · View company records in RevenueBase
15	Focus Services	Exact match	Roy, United StatesHQ recorded Nov 5, 2026	1,001-5,000	906 contacts →
	Exact match “Focus was founded in 1995.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Vector	Exact match	Fortaleza, BrazilHQ recorded Nov 5, 2026	1,001-5,000	795 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 · Nov 5, 2026 · View company records in RevenueBase
17	Talksure	Exact match	Durban, South AfricaHQ recorded Nov 5, 2026	501-1,000	740 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 · Nov 5, 2026 · View company records in RevenueBase
18	Salebuild	Exact match	Redwood City, CA, United StatesHQ recorded Nov 5, 2026	n/a	725 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 · Nov 5, 2026 · View company records in RevenueBase
19	Fastco	Exact match	Providencia, ChileHQ recorded Nov 5, 2026	1,001-5,000	720 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 · Nov 5, 2026 · View company records in RevenueBase
20	Girnar Care	Exact match	Jaipur, IndiaHQ recorded Nov 5, 2026	501-1,000	681 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 · Nov 5, 2026 · View company records in RevenueBase
21	Global Contact Services GCS	Exact match	Salisbury, VA, United StatesHQ recorded Nov 5, 2026	501-1,000	623 contacts →
	Exact match “We are customer service experts.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Servicefirst	Exact match	Alabang, PhilippinesHQ recorded Nov 5, 2026	1,001-5,000	622 contacts →
	Exact match “ServiceFirst is a World Class Call Center and BPO with strategic locations around the globe providing an elevated Customer Experience to benefit your business with exceptional…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Transcosmos Malaysia	Exact match	Kuala Lumpur, MalaysiaHQ recorded Nov 5, 2026	1,001-5,000	610 contacts →
	Exact match “Transcosmos Malaysia offer integrated call center services such as Call Center, Social Media Management, Voice Of Customer Analysis, Digital Marketing and eCommerce Solution that…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Sixeleven Global Services And Solutions	Exact match	Davao City, PhilippinesHQ recorded Nov 5, 2026	501-1,000	608 contacts →
	Exact match “In 2005, initially starting as a training center for would-be call center agents for other companies, Six Eleven transformed to the BPO center it is today by believing in the…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Telenet Marketing Solutions	Exact match	Athens, GA, IndiaHQ recorded Nov 5, 2026	201-500	580 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 · Nov 5, 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 “business development 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 10,128 business development call centers worldwide

See the full list, filter by size, metro and specialty, and access 12,558 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business development call centers worldwide at a glance

As of Nov 5, 2026

7.5%Verified-email coverage

16.5Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

4,138

11-50

3,347

51-200

1,728

201-500

530

501-1,000

202

1,001-5,000

116

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 business development call centers are linked below.
What qualifies: Company records worldwide whose business descriptions match “business development 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 12,558 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 November 5, 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.

Business development call centers by location

48 lists · largest first

Every Business development call centers 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 “business development call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business development call centers are there worldwide?

RevenueBase identified 10,128 company matches for business development call centers worldwide as of November 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?

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

Which country has the most business development call centers?

The United States leads with 1,932 companies, followed by India (798) and the United Kingdom (653). Every business development call centers list by country and city is linked on this page.

Which city has the most business development call centers?

London leads with 169 company records, followed by Pune (154) and Lahore (124).

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 12,558 professional contacts with verified work emails tracked across these 10,128 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 November 5, 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.