Company lists · Data refreshed September 2026

Top 25 Outsource back office customer services worldwide

Name: Outsource back office customer services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 9,598 companies tracked

RevenueBase identified 9,598 company matches for outsource back office customer services worldwide as of September 2026 and tracks 425,856 professional contacts across them, including 36,318 with verified work emails. The United States is the largest market and Lahore the largest hub.

This list covers company matches for outsource back office customer services 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 21, 2026. Country and city lists for outsource back office customer services 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 21, 2026 How this list was built

9,598Companies

425,856Contacts tracked

36,318Verified emails

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The 25 largest outsource back office customer services worldwide

Ranked by team size

Top 25 of 9,598 company matches for outsource back office customer services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Capita	Exact match	London, United KingdomHQ recorded Sep 21, 2026	10001+	20,824 contacts →
	Exact match “Capita is an outsourcer, helping clients across the public and private sectors run complex business processes more efficiently, creating better consumer experiences.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Ienergizer	Exact match	Noida, IndiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3	Intelcia	Exact match	Casablanca, MoroccoHQ recorded Sep 21, 2026	10001+	13,214 contacts →
	Exact match “Intelcia is a global player in outsourcing, which has supported its clients for 20 years combining talents, technologies, and processes to offer a tailor-made service and skills…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Comdata Group	Exact match	Corsico, ItalyHQ recorded Sep 21, 2026	10001+	9,614 contacts →
	Exact match “We're KONECTA now!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	CCI Global	Exact match	Durban, South AfricaHQ recorded Sep 21, 2026	10001+	6,349 contacts →
	Exact match “CCI Global is a distinguished leader in the Business Process Outsourcing (BPO) industry in Africa- Headquartered in the UAE, CCI is renowned for exceptional services across a…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	XCEED	Exact match	Cairo, EgyptHQ recorded Sep 21, 2026	10001+	6,302 contacts →
	Exact match “Xceed is the leading multilingual Business Process Outsourcing Service provider in EMEA region with a capacity of more than web enabled multi channels stations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Emtelco S.A	Exact match	Medellín, ColombiaHQ recorded Sep 21, 2026	10001+	4,998 contacts →
	Exact match “Maximizamos el valor de cada contacto de las empresas con sus clientes, gestionando los procesos de relacionamiento a través de canales tefónicos, virtuales y presenciales.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Liderança Serviços	Exact match	São José, BrazilHQ recorded Sep 21, 2026	10001+	4,504 contacts →
	Exact match “Atuamos nos principais setores de terceirização, e somos pioneiros na implantação de contratos à distância.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Mindbridge	Exact match	Lahore, PakistanHQ recorded Sep 21, 2026	5,001-10,000	4,359 contacts →
	Exact match “Founded in 2004, Mindbridge (Private) Limited is Pakistan’s largest BPO company, operating with a capacity.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Arcgate	Exact match	Udaipur, IndiaHQ recorded Sep 21, 2026	1,001-5,000	4,122 contacts →
	Exact match “We are a fast-growing BPO & IT outsourcing firm with a team of 2500+ people passionate about data and technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Brasil Center Comunicações	Exact match	n/a	5,001-10,000	3,979 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	GSS Global Sales Solutions	Exact match	Madrid, SpainHQ recorded Sep 21, 2026	10001+	3,716 contacts →
	Exact match “is a tech company specialized in providing, and for.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Iqor Philippines	Exact match	United StatesHQ recorded Sep 21, 2026	n/a	3,370 contacts →
	Exact match “We are a global BPO” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	EPX Eperformax Contact Centers	Exact match	Pasay City, PhilippinesHQ recorded Sep 21, 2026	5,001-10,000	3,061 contacts →
	Exact match “ePerformax is a high-performing contact center & BPO that provides world-class, omnichannel service and support to a select group of Fortune companies and their customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16	Stream Global Services	Exact match	Eagan, MN, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17	Expert Global Solutions NOW Alorica	Exact match	United StatesHQ recorded Sep 21, 2026	10001+	2,388 contacts →
	Exact match “Expert Global Solutions is now part of Alorica.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Nexa BPO	Exact match	Bogotá D.c, ColombiaHQ recorded Sep 21, 2026	5,001-10,000	2,342 contacts →
	Exact match “Más que un contact center y BPO, somos el partner que asegura que la experiencia de tus clientes sea increíble.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	CAT Technologies Argentina	Exact match	Buenos Aires, ArgentinaHQ recorded Sep 21, 2026	1,001-5,000	2,221 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 · Sep 21, 2026 · View company records in RevenueBase
20	Alta Resources	Exact match	Neenah, WI, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
21	PT Danamas Insan Kreasi Andalan Dika	Exact match	Jakarta Pusat, IndonesiaHQ recorded Sep 21, 2026	1,001-5,000	2,036 contacts →
	Exact match “PT Danamas Insan Kreasi Andalan (DIKA) adalah solusi outsourcing terpercaya untuk membantu bisnis Anda tumbuh lebih cepat dan efisien.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	MODER	Exact match	Fort Lauderdale, United StatesHQ recorded Sep 21, 2026	5,001-10,000	2,008 contacts →
	Exact match “Moder was founded in December 2020, with the mission to positively impact the financial health of companies in need by powering their in-house processes using top talent, workflow…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Transcosmos INC	Exact match	Toshima-ku, JapanHQ recorded Sep 21, 2026	10001+	1,987 contacts →
	Exact match “transcosmos launched its operations in 1966.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Allied Global	Exact match	GuatemalaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
25	Gear INC	Exact match	SingaporeHQ recorded Sep 21, 2026	5,001-10,000	1,974 contacts →
	Exact match “Empowering Global Brands Through Custom BPO Solutions Gear Inc delivers business process outsourcing solutions designed to meet the unique challenges of leading enterprises.” Recorded in the RevenueBase company graph · Sep 21, 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 “outsource back office customer services”. 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 9,598 outsource back office customer services worldwide

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Outsource back office customer services worldwide at a glance

As of Sep 21, 2026

8.5%Verified-email coverage

44.4Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · Lahore

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,259

11-50

3,363

51-200

2,289

201-500

886

501-1,000

352

1,001-5,000

317

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 outsource back office customer services are linked below.
What qualifies: Company records worldwide whose business descriptions match “outsource back office customer services” 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 36,318 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 21, 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.

Outsource back office customer services by location

45 lists · largest first

Every Outsource back office customer services 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 “outsource back office customer services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsource back office customer services are there worldwide?

RevenueBase identified 9,598 company matches for outsource back office customer services 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?

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

Which country has the most outsource back office customer services?

The United States leads with 1,432 companies, followed by India (1,425) and Pakistan (641). Every outsource back office customer services list by country and city is linked on this page.

Which city has the most outsource back office customer services?

Lahore leads with 224 company records, followed by London (121) and Rawalpindi (119).

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 36,318 professional contacts with verified work emails tracked across these 9,598 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 21, 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.