Company lists · Data refreshed September 2026

Top 25 Administrative outsourcing companies worldwide

Name: Administrative outsourcing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 14,275 companies tracked

RevenueBase identified 14,275 administrative outsourcing companies worldwide as of September 2026 and tracks 253,944 professional contacts across them, including 27,284 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers administrative outsourcing companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026. Country and city lists for administrative outsourcing companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

14,275Companies

253,944Contacts tracked

27,284Verified emails

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The 25 largest administrative outsourcing companies worldwide

Ranked by team size

Top 25 of 14,275 administrative outsourcing companies worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to administrative outsourcing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Capita	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	10001+	20,824 contacts →
	Indirect evidence “Capita is an outsourcer, helping clients across the public and private sectors run complex business processes more efficiently, creating better consumer experiences.” Source: RevenueBase Database · checked Sep 27, 2026
2	Liderança Serviços	Indirect evidence	São José, BrazilHQ checked Sep 27, 2026	10001+	4,504 contacts →
	Indirect evidence “Atuamos nos principais setores de terceirização, e somos pioneiros na implantação de contratos à distância.” Source: RevenueBase Database · checked Sep 27, 2026
3	TOA Global	Indirect evidence	Southport, AustraliaHQ checked Sep 27, 2026	1,001-5,000	3,912 contacts →
	Indirect evidence “Don’t wait until understaffing eats away at your productivity and client satisfaction.” Source: RevenueBase Database · checked Sep 27, 2026
4	Integreon	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	3,678 contacts →
	Indirect evidence “Integreon is a trusted provider of legal, creative and business outsourced services to corporations and law firms worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
5	PT Danamas Insan Kreasi Andalan Dika	Partial evidence	Jakarta Pusat, IndonesiaHQ checked Sep 27, 2026	1,001-5,000	2,036 contacts →
	Partial evidence “PT Danamas Insan Kreasi Andalan (DIKA) adalah solusi outsourcing terpercaya untuk membantu bisnis Anda tumbuh lebih cepat dan efisien.” Source: RevenueBase Database · checked Sep 27, 2026
6	Nova RIO	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 27, 2026	1,001-5,000	1,895 contacts →
	Indirect evidence “A Nova Rio é uma empresa líder em multiplicidade de serviços, porque oferece um mundo de opções em terceirização para a sua empresa.” Source: RevenueBase Database · checked Sep 27, 2026
7	Grupo MAP	Indirect evidence	Salvador - São Paulo, BrazilHQ checked Sep 27, 2026	10001+	1,440 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026
8	Spsp Oficial	Indirect evidence	Marilia, BrazilHQ checked Sep 27, 2026	5,001-10,000	1,395 contacts →
	Indirect evidence “Fundada em 20 de agosto de 1994, atuante no mercado de prestação de serviços, a SPSP é uma das mais conceituadas empresas de terceirização do país.” Source: RevenueBase Database · checked Sep 27, 2026
9	Information Evolution, INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	501-1,000	1,238 contacts →
	Partial evidence “We are a boutique outsourcing firm specializing in keeping our customers' databases up-to-date, accurate, and as robust as possible.” Source: RevenueBase Database · checked Sep 27, 2026
10	SEBPO	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,237 contacts →
	Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 27, 2026
11	Cygnus	Partial evidence	Santiago, ChileHQ checked Sep 27, 2026	5,001-10,000	1,189 contacts →
	Partial evidence “Cygnus comienza sus operaciones en Abril de 1998 con el objetivo de ofrecer servicios de Outsourcing con una propuesta de valor innovadora: entregar soluciones a la medida de los…” Source: RevenueBase Database · checked Sep 27, 2026
12	Soluções Terceirizadas	Indirect evidence	Guarulhos, BrazilHQ checked Sep 27, 2026	10001+	1,082 contacts →
	Indirect evidence “A Soluções Terceirizadas está no mercado desde 2008, com a proposta inovadora na prestação de serviços de alta complexidade, com profissionais altamente capacitados para atender…” Source: RevenueBase Database · checked Sep 27, 2026
13	Invensis	Indirect evidence	Bangalore, IndiaHQ checked Sep 27, 2026	1,001-5,000	995 contacts →
	Indirect evidence “At Invensis, we solve business inefficiencies.” Source: RevenueBase Database · checked Sep 27, 2026
14	NASCO	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	201-500	974 contacts →
	Indirect evidence “NASCO empowers health plans to innovate, grow, and deliver better experiences through a comprehensive suite of healthcare technology solutions and services.” Source: RevenueBase Database · checked Sep 27, 2026
15	Grupo Provac	Indirect evidence	Araraquara, BrazilHQ checked Sep 27, 2026	5,001-10,000	964 contacts →
	Indirect evidence “Há mais de 40 anos no mercado de trabalho terceirizado, o Grupo Provac é uma empresa prestadora de serviços especializados, presente em mais de 130 cidades do Estado, com todo…” Source: RevenueBase Database · checked Sep 27, 2026
16	Digicon Technologies LTD	Partial evidence	Dhaka, BangladeshHQ checked Sep 27, 2026	1,001-5,000	953 contacts →
	Partial evidence “Digicon Technologies PLC is a leading outsourcing organization in Bangladesh, with an industry leading edge in the vertical of BPO and IT/ITES solutions.” Source: RevenueBase Database · checked Sep 27, 2026
17	Criart Servicos DE Terceirizacao DE MAO DE Obra	Indirect evidence	Fortaleza, BrazilHQ checked Sep 27, 2026	1,001-5,000	942 contacts →
	Indirect evidence “Criart Servicos De Terceirizacao De Mao De Obra is a staffing and recruiting company based out of Rua Tibœrcio Cavalcante 2850, Fortaleza, Ceará, Brazil.” Source: RevenueBase Database · checked Sep 27, 2026
18	Atidiv	Indirect evidence	Miami Beach, FL, United StatesHQ checked Sep 27, 2026	501-1,000	887 contacts →
	Indirect evidence “At Atidiv, we help DTC brands and media agencies scale without the overhead of building large in-house teams.” Source: RevenueBase Database · checked Sep 27, 2026
19	Adecco Outsourcing	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	501-1,000	887 contacts →
	Partial evidence “Adecco Outsourcing propose aux entreprises des solutions d’externalisation dédiées à l’Accueil en entreprise, à l’Evènementiel, au Marketing terrain et aux activités de production…” Source: RevenueBase Database · checked Sep 27, 2026
20	Pt. Swakarya Insan Mandiri	Indirect evidence	IndonesiaHQ checked Sep 27, 2026	n/a	887 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
21	Imarque Solutions Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 27, 2026	1,001-5,000	879 contacts →
	Indirect evidence “Started operation on 2004 with 25 employees, Currently iMarque has grown into a powerhouse of over professionals today, consistently achieving an impressive 40% average annual…” Source: RevenueBase Database · checked Sep 27, 2026
22	Servestsa	Indirect evidence	Caracas, VenezuelaHQ checked Sep 27, 2026	n/a	865 contacts →
	Indirect evidence “Statistics first” Source: RevenueBase Database · checked Sep 27, 2026
23	Grupo SSI	Indirect evidence	Santa Maria, BrazilHQ checked Sep 27, 2026	1,001-5,000	862 contacts →
	Indirect evidence “Serviços Terceirizados: Atuamos nas áreas de gerenciamento, limpeza, manutenção e segurança de áreas internas e externas.” Source: RevenueBase Database · checked Sep 27, 2026
24	Connext	Partial evidence	Honolulu, United StatesHQ checked Sep 27, 2026	5,001-10,000	854 contacts →
	Partial evidence “Most outsourcing companies give you a vendor.” Source: RevenueBase Database · checked Sep 27, 2026
25	Sourcefit	Indirect evidence	Quezon City, PhilippinesHQ checked Sep 27, 2026	1,001-5,000	813 contacts →
	Indirect evidence “Sourcefit is focused on providing custom offshore solutions.” Source: RevenueBase Database · checked Sep 27, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: administrative outsourcing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names administrative outsourcing companies.
Partial evidence: Its own public description names part of administrative outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name administrative outsourcing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 14,275 administrative outsourcing companies worldwide

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Administrative outsourcing companies worldwide at a glance

As of Sep 27, 2026

10.7%Verified-email coverage

17.8Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · Sao Paulo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

7,184

11-50

3,853

51-200

1,781

201-500

695

501-1,000

326

1,001-5,000

286

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among administrative outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for administrative outsourcing companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “administrative outsourcing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names administrative outsourcing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among administrative outsourcing companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 27,284 across the full list. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Administrative outsourcing companies by location

55 lists · largest first

Every Administrative outsourcing companies 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names administrative outsourcing companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many administrative outsourcing companies are there worldwide?

RevenueBase identified 14,275 administrative outsourcing companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Capita, headquartered in London, tops this list with the largest team on record.

Which country has the most administrative outsourcing companies?

The United States leads with 1,823 companies, followed by Brazil (1,559) and India (1,310). Every administrative outsourcing companies list by country and city is linked on this page.

Which city has the most administrative outsourcing companies?

Sao Paulo leads with 318 headquartered companies, followed by London (135) and Ahmedabad (130).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 27,284 verified decision-maker contacts tracked across these 14,275 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 Smart Search, 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.