Company lists · Data refreshed September 2026

Top 25 Customer acquisition outsourcing firms worldwide

Name: Customer acquisition outsourcing firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 15,414 companies tracked

RevenueBase identified 15,414 company matches for customer acquisition outsourcing firms worldwide as of September 2026 and tracks 234,886 professional contacts across them, including 22,532 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for customer acquisition outsourcing firms 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 customer acquisition outsourcing firms 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

15,414Companies

234,886Contacts tracked

22,532Verified emails

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The 25 largest customer acquisition outsourcing firms worldwide

Ranked by team size

Top 25 of 15,414 company matches for customer acquisition outsourcing firms 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	IBEX	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	10001+	15,457 contacts →
	Exact match “ibex delivers innovative business process outsourcing (BPO), smart digital marketing, online acquisition technology, and end-to-end customer engagement solutions to help companies…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Ienergizer	Exact match	Noida, IndiaHQ recorded Sep 28, 2026	10001+	14,745 contacts →
	Exact match “iEnergizer is a leading Business Process Outsourcing provider (“BPO”) of customer management solutions dedicated to delivering performance while actively supporting and advocating…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Ibex. Pakistan	Exact match	Karachi, PakistanHQ recorded Sep 28, 2026	10001+	4,161 contacts →
	Exact match “ibex.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Xdbs Worldwide	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 28, 2026	1,001-5,000	3,498 contacts →
	Exact match “At XDBS, we primarily work with media agencies, publishers and marketing companies looking to leverage marketing automation and digital marketing capacity and capability to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	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
6	Stream Global Services	Exact match	Eagan, MN, United StatesHQ recorded Sep 28, 2026	10001+	2,772 contacts →
	Exact match “Stream Global Services is a premium business process outsource (BPO) service provider specializing in customer relationship management solutions including sales, customer care…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Marketstar	Exact match	Ogden, UT, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,446 contacts →
	Exact match “MarketStar is a global B2B sales outsourcing leader with 38+ years of experience driving predictable revenue growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Alta Resources	Exact match	Neenah, WI, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,046 contacts →
	Exact match “Alta Resources has always worked to be something different.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Transcosmos INC	Exact match	Toshima-ku, JapanHQ recorded Sep 28, 2026	10001+	1,987 contacts →
	Exact match “transcosmos launched its operations in 1966.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Allied Global	Exact match	GuatemalaHQ recorded Sep 28, 2026	5,001-10,000	1,979 contacts →
	Exact match “Regardless of your Company’s size (from Start-ups to Fortune 500), business vertical or service requirements, we act as a seamless extension of your team to help you grow, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Webhelp Enterprise	Exact match	Paris, FranceHQ recorded Sep 28, 2026	10001+	1,795 contacts →
	Exact match “The Concentrix B2B sales practice is here to design, build and run projects for our clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Support Services Group	Exact match	Waco, TX, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,710 contacts →
	Exact match “Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	BRM S.A.S	Exact match	Bogotá, ColombiaHQ recorded Sep 28, 2026	1,001-5,000	1,363 contacts →
	Exact match “Las conexiones más poderosas surgen de interacciones sencillas que marcan la diferencia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Full Potential Solutions	Exact match	Waltham, MA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,238 contacts →
	Exact match “Full Potential Solutions (FPS) is a new kind of performance-based outsourcing firm that puts culture and employees first, because we believe that happy, fulfilled teams accomplish…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	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
16	Credico	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	n/a	1,188 contacts →
	Exact match “Credico is the world's leading face-to-face customer acquisition agency, helping our clients attract and retain loyal customers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Rewardsco	Exact match	Durban, South AfricaHQ recorded Sep 28, 2026	1,001-5,000	917 contacts →
	Exact match “Our People.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	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
19	Infuse	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	796 contacts →
	Exact match “Demand Excellence Delivered We are INFUSE, a global B2B demand and revenue marketing performance company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	ZAZ Vendas	Exact match	Campinas, BrazilHQ recorded Sep 28, 2026	501-1,000	796 contacts →
	Exact match “Em um mercado cada vez mais competitivo, onde a eficiência em vendas massificadas e externas é um desafio constante, a ZAZ Vendas surge como a resposta definitiva.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Salelytics	Exact match	Appleton, WI, United StatesHQ recorded Sep 28, 2026	1,001-5,000	776 contacts →
	Exact match “Salelytics is now MarketSource.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	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
23	Anteriad	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	740 contacts →
	Exact match “Data Driven.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Abstrakt Marketing Group	Exact match	St Louis, MO, United StatesHQ recorded Sep 28, 2026	501-1,000	724 contacts →
	Exact match “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	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

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 “customer acquisition outsourcing 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 15,414 customer acquisition outsourcing firms worldwide

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Customer acquisition outsourcing firms worldwide at a glance

As of Sep 28, 2026

9.6%Verified-email coverage

15.2Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Pune

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

7,610

11-50

5,117

51-200

1,904

201-500

514

501-1,000

134

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 customer acquisition outsourcing firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “customer acquisition outsourcing 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. 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 22,532 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.

Customer acquisition outsourcing firms by location

80 lists · largest first

Every Customer acquisition outsourcing firms 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 “customer acquisition outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer acquisition outsourcing firms are there worldwide?

RevenueBase identified 15,414 company matches for customer acquisition outsourcing firms 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?

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

Which country has the most customer acquisition outsourcing firms?

The United States leads with 3,396 companies, followed by India (1,645) and the United Kingdom (1,082). Every customer acquisition outsourcing firms list by country and city is linked on this page.

Which city has the most customer acquisition outsourcing firms?

Pune leads with 401 company records, followed by London (339) and New York (171).

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 22,532 professional contacts with verified work emails tracked across these 15,414 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.