Company lists · Data refreshed September 2026

Top 25 Professional outsourcing services worldwide

Name: Professional outsourcing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 21,514 companies tracked

RevenueBase identified 21,514 company matches for professional outsourcing services worldwide as of September 2026 and tracks 447,004 professional contacts across them, including 43,262 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for professional outsourcing 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 professional outsourcing 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

21,514Companies

447,004Contacts tracked

43,262Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest professional outsourcing services worldwide

Ranked by team size

Top 25 of 21,514 company matches for professional outsourcing 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	Eficacia	Exact match	Cali, ColombiaHQ recorded Sep 21, 2026	10001+	4,692 contacts →
	Exact match “Incrementamos la productividad y eficiencia de nuestros clientes- Más de 40 años de experiencia en el mercado- Líderes en Soluciones de Mercadeo, Trade Marketing, Ventas y Gestión…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	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
6	TOA Global	Exact match	Southport, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	3,912 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
7	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
8	Plansul	Exact match	Florianópolis, BrazilHQ recorded Sep 21, 2026	10001+	3,097 contacts →
	Exact match “A Plansul é referência nacional em serviços terceirizados há mais de 40 anos, oferecendo soluções completas em Facilities e Contact Center para empresas públicas e privadas.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	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
10	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
11	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
12	Enshored	Exact match	Signal Hill, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,247 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
13	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
14	Covalen	Exact match	Dublin 4, IrelandHQ recorded Sep 21, 2026	1,001-5,000	2,020 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	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
16	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
17	Nova RIO	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,895 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
18	Capita India	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	5,001-10,000	1,757 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
19	Calibehr Business Support Services Pvt. LTD	Exact match	Navi Mumbai, IndiaHQ recorded Sep 21, 2026	10001+	1,725 contacts →
	Exact match “Calibehr is a strategic business solutions provider company that offers end-to-end solutions to organizations for sustainable growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Support Services Group	Exact match	Waco, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
21	Emagine	Exact match	Copenhagen, DenmarkHQ recorded Sep 21, 2026	1,001-5,000	1,636 contacts →
	Exact match “emagine is a high-end business & IT consulting company challenging the way businesses leverage high-end expertise.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Befree	Exact match	Parramatta, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	1,626 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
23	Sybrid Private Limited	Exact match	Karachi, PakistanHQ recorded Sep 21, 2026	1,001-5,000	1,609 contacts →
	Exact match “Sybrid (Pvt) Ltd is Pakistan's leading technology solutions provider, helping businesses optimize their operations and drive growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	RDI Corporation	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,484 contacts →
	Exact match “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Grupo Mazzini Administracao E Empreitas	Exact match	Vila Mariana, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,455 contacts →
	Exact match “Fundado em 1981, o Grupo Mazzini se destaca pela especialização na prestação e gestão de serviços terceirizados, mão de obra temporária, trade marketing, facilities e unidades de…” 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 “professional outsourcing 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 21,514 professional outsourcing services worldwide

See the full list, filter by size, metro and specialty, and access 43,262 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Professional outsourcing services worldwide at a glance

As of Sep 21, 2026

9.7%Verified-email coverage

20.8Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

10,199

11-50

6,360

51-200

2,865

201-500

1,057

501-1,000

444

1,001-5,000

375

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 professional outsourcing services are linked below.
What qualifies: Company records worldwide whose business descriptions match “professional outsourcing 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 43,262 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.

Professional outsourcing services by location

86 lists · largest first

Every Professional outsourcing 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 “professional outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional outsourcing services are there worldwide?

RevenueBase identified 21,514 company matches for professional outsourcing 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 professional outsourcing services?

The United States leads with 2,255 companies, followed by India (2,198) and Brazil (1,933). Every professional outsourcing services list by country and city is linked on this page.

Which city has the most professional outsourcing services?

Sao Paulo leads with 422 company records, followed by London (235) and Lahore (225).

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 43,262 professional contacts with verified work emails tracked across these 21,514 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.

Ready to reach these companies? Verified emails and direct dials for all 21,514 professional outsourcing services worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.