Company lists · Data refreshed September 2026

Top 25 Outsourced back-office services firms worldwide

RevenueBase identified 17,717 company matches for outsourced back-office services firms worldwide as of September 2026 and tracks 473,940 professional contacts across them, including 52,847 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for outsourced back-office services 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 21, 2026. Country and city lists for outsourced back-office services 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 21, 2026 How this list was built
17,717Companies
473,940Contacts tracked
52,847Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest outsourced back-office services firms worldwide

Ranked by team size
Top 25 of 17,717 company matches for outsourced back-office services firms 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 21, 202610001+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
2Exact matchNoida, IndiaHQ recorded Sep 21, 202610001+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
3Exact matchCasablanca, MoroccoHQ recorded Sep 21, 202610001+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
4Exact matchDurban, South AfricaHQ recorded Sep 21, 202610001+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
5Exact matchCairo, EgyptHQ recorded Sep 21, 202610001+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
6Exact matchSão José, BrazilHQ recorded Sep 21, 202610001+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
7Exact matchUdaipur, IndiaHQ recorded Sep 21, 20261,001-5,0004,122 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
8Exact matchSouthport, AustraliaHQ recorded Sep 21, 20261,001-5,0003,912 contacts →

Exact match

“Don’t wait until understaffing eats away at your productivity and client satisfaction.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Sep 21, 20261,001-5,0003,678 contacts →

Exact match

“Integreon is a trusted provider of legal, creative and business outsourced services to corporations and law firms worldwide.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchTaguig, PhilippinesHQ recorded Sep 21, 20265,001-10,0003,508 contacts →

Exact match

“Outsourcing, reimagined - through talent that moves business forward.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBerwyn, PA, United StatesHQ recorded Sep 21, 20265,001-10,0002,774 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
12Exact matchEagan, MN, United StatesHQ recorded Sep 21, 202610001+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
13Exact matchSignal Hill, CA, United StatesHQ recorded Sep 21, 20261,001-5,0002,247 contacts →

Exact match

“Enshored powers the growth of ambitious high growth companies by delivering and managing teams of elite outsourcers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchAustin, TX, United StatesHQ recorded Sep 21, 202610001+2,231 contacts →

Exact match

“OUR PEOPLE, YOUR PRIORITIES Streamline your finance & accounting team at 50% cost savings with a team as small as one.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchJakarta Pusat, IndonesiaHQ recorded Sep 21, 20261,001-5,0002,036 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
16Exact matchFort Lauderdale, United StatesHQ recorded Sep 21, 20265,001-10,0002,008 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
17Exact matchToshima-ku, JapanHQ recorded Sep 21, 202610001+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
18Exact matchGuatemalaHQ recorded Sep 21, 20265,001-10,0001,979 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
19Exact matchSingaporeHQ recorded Sep 21, 20265,001-10,0001,974 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
20Exact matchRio De Janeiro, BrazilHQ recorded Sep 21, 20261,001-5,0001,895 contacts →

Exact match

“A Nova Rio é uma empresa líder em multiplicidade de serviços, porque oferece um mundo de opções em terceirização para a sua empresa.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchMumbai, IndiaHQ recorded Sep 21, 20265,001-10,0001,757 contacts →

Exact match

“Established in 2004, Capita India is part of Capita plc, the UK's No.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchWaco, TX, United StatesHQ recorded Sep 21, 20265,001-10,0001,710 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 21, 2026 · View company records in RevenueBase
23Exact matchParramatta, AustraliaHQ recorded Sep 21, 20261,001-5,0001,626 contacts →

Exact match

“Befree is a global financial services provider headquartered in Sydney with a strong presence across Australia, the UK, the US, and India.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchMadrid, SpainHQ recorded Sep 21, 20265,001-10,0001,447 contacts →

Exact match

“Grupo Marktel es un grupo empresarial que ofrece soluciones globales a sus clientes en el ámbito de la externalziación de servicios con el máximo nivel de especialización en las…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSalvador - São Paulo, BrazilHQ recorded Sep 21, 202610001+1,440 contacts →

Exact match

“Fundado em Dezembro de 2001, o Grupo MAP traz em seu DNA a arte de servir e o compromisso de manter seus clientes sempre satisfeitos.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 17,717 outsourced back-office services firms worldwide

See the full list, filter by size, metro and specialty, and access 52,847 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourced back-office services firms worldwide at a glance

As of Sep 21, 2026
11.2%Verified-email coverage
26.8Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Sao Paulo
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
7,291
11-50
5,621
51-200
2,841
201-500
1,001
501-1,000
427
1,001-5,000
371
5,001-10,000
68
10001+
54

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 outsourced back-office services firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “outsourced back-office services 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 52,847 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.

Outsourced back-office services firms by location

81 lists · largest first

Every Outsourced back-office services 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 “outsourced back-office services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourced back-office services firms are there worldwide?

RevenueBase identified 17,717 company matches for outsourced back-office services 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?

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

Which country has the most outsourced back-office services firms?

The United States leads with 2,827 companies, followed by India (2,588) and Brazil (1,569). Every outsourced back-office services firms list by country and city is linked on this page.

Which city has the most outsourced back-office services firms?

Sao Paulo leads with 341 company records, followed by Ahmedabad (249) and London (245).

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 52,847 professional contacts with verified work emails tracked across these 17,717 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.