Company lists · Data refreshed November 2026
Top 25 Administrative services organizations worldwide
RevenueBase identified 14,439 company matches for administrative services organizations worldwide as of November 2026 and tracks 205,643 professional contacts across them, including 54,150 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for administrative services organizations 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 November 6, 2026. Country and city lists for administrative services organizations 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.
The 25 largest administrative services organizations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 26,969 contacts → | ||||
Exact match “Informació, serveis i tràmits a gencat.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 11,520 contacts → | ||||
Exact match “We provide employee, financial and legal administration so that firms can invest and operate safely around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 6,280 contacts → | ||||
Exact match “Parallon leverages extensive expertise across a broad portfolio of revenue cycle, contact center, and clinical and administrative shared services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 4,943 contacts → | ||||
Exact match “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 4,083 contacts → | ||||
Exact match “Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 2,771 contacts → | ||||
Exact match “VensureHR is the direct employer services business unit of Vensure Employer Solutions, the largest privately held organization in the HR technology and services sector, delivering…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 1,979 contacts → | ||||
Exact match “Nextcare is the leading “Third Party Administrator” (TPA) for the insurance industry in the GCC & MENA region.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 1,784 contacts → | ||||
Exact match “At Securex, we help you catch a breather.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 1,459 contacts → | ||||
Exact match “Partena Professional is a service provider with a strong focus on entrepreneurship and personnel management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 1,447 contacts → | ||||
Exact match “PACS trains and hires healthcare leaders, and provides a wide array of back-office support services to healthcare facilities, reducing administrative burdens so local leadership…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 1,425 contacts → | ||||
Exact match “Liantis ondersteunt meer dan zelfstandige ondernemers en 67.500 werkgevers in ons land.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 1,182 contacts → | ||||
Exact match “NASCO empowers health plans to innovate, grow, and deliver better experiences through a comprehensive suite of healthcare technology solutions and services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 1,082 contacts → | ||||
Exact match “Incorporated in the year 1995 and licensed by IRDAI in the year 2002, Family Health Plan Insurance TPA Limited (FHPL) has its registered office in Chennai and Corporate office in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 959 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 945 contacts → | ||||
Exact match “Somos excelência em serviços terceirizados.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 915 contacts → | ||||
Exact match “Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 754 contacts → | ||||
Exact match “Associations help industries, fields and professions stay current and connected for the members and communities who depend on them.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 645 contacts → | ||||
Exact match “Medica Health Management provides comprehensive business management services, including: clinical, financial, administrative, human resources and marketing to Home Health and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 618 contacts → | ||||
Exact match “Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 611 contacts → | ||||
Exact match “We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 607 contacts → | ||||
Exact match “Brickwork India, a Women-owned Business Enterprise (WBE) and an ISO 27001: 2022 certified company, is the pioneer and leader in the Global Business Support Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 589 contacts → | ||||
Exact match “AccSource is an ISO27001-certified business process outsourcing company specialising in accounting, operational, administrative and compliance business processes for all small to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 558 contacts → | ||||
Exact match “We are a proud and happy company that serves the outsourcing field with passion and commitment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 549 contacts → | ||||
Exact match “EDI is a top company in association management, providing professional services for national and international medical, certification, and scientific associations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 519 contacts → | ||||
Exact match “CoAdvantage is now CoAd.” Recorded in the RevenueBase company graph · Nov 6, 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 “administrative services organizations”. 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 14,439 administrative services organizations worldwide
See the full list, filter by size, metro and specialty, and access 54,150 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Administrative services organizations worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 administrative services organizations are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “administrative services organizations” 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 54,150 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 November 6, 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.
Administrative services organizations by location
58 lists · largest firstEvery Administrative services organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Administrative services organizations based in the United States3,222
- Administrative services organizations based in France1,201
- Administrative services organizations based in the Netherlands926
- Administrative services organizations based in Brazil887
- Administrative services organizations based in the United Kingdom647
- Administrative services organizations based in Italy537
- Administrative services organizations based in India487
- Administrative services organizations based in Australia282
- Administrative services organizations based in Spain280
- Administrative services organizations based in Canada262
- Administrative services organizations based in South Africa252
- Administrative services organizations based in Belgium240
- Administrative services organizations based in Germany215
- Administrative services organizations based in Switzerland197
- Administrative services organizations based in Poland172
- Administrative services organizations based in Mexico169
- Administrative services organizations based in the Philippines118
- Administrative services organizations based in Colombia112
- Administrative services organizations based in Sweden100
- Administrative services organizations based in Portugal94
- Administrative services organizations based in Argentina79
- Administrative services organizations based in Chile77
- Administrative services organizations based in Denmark75
- Administrative services organizations based in the United Arab Emirates59
- Administrative services organizations based in New Zealand56
- Administrative services organizations based in Egypt41
- Administrative services organizations based in Malaysia34
- Administrative services organizations based in Ireland32
- Administrative services organizations based in Norway27
- Administrative services organizations based in Israel26
- Administrative services organizations based in Finland25
Cities
- Administrative services organizations based in Sao Paulo, Brazil183
- Administrative services organizations based in London, United Kingdom79
- Administrative services organizations based in Paris, France78
- Administrative services organizations based in Rio De Janeiro, Brazil64
- Administrative services organizations based in Houston, United States62
- Administrative services organizations based in Atlanta, United States61
- Administrative services organizations based in New York, United States60
- Administrative services organizations based in Johannesburg, South Africa39
- Administrative services organizations based in Warsaw, Poland36
- Administrative services organizations based in Los Angeles, United States35
- Administrative services organizations based in Austin, United States34
- Administrative services organizations based in Chicago, United States32
- Administrative services organizations based in Mexico City, Mexico32
- Administrative services organizations based in Sydney, Australia32
- Administrative services organizations based in Denver, United States31
- Administrative services organizations based in Phoenix, United States31
- Administrative services organizations based in Chennai, India30
- Administrative services organizations based in Toronto, Canada30
- Administrative services organizations based in Miami, United States29
- Administrative services organizations based in Las Vegas, United States28
- Administrative services organizations based in Pretoria, South Africa28
- Administrative services organizations based in Stockholm, Sweden28
- Administrative services organizations based in Dallas, United States27
- Administrative services organizations based in Melbourne, Australia26
- Administrative services organizations based in San Diego, United States26
- Administrative services organizations based in Tampa, United States26
- Administrative services organizations based in Amsterdam, Netherlands25
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 “administrative services organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many administrative services organizations are there worldwide?
RevenueBase identified 14,439 company matches for administrative services organizations worldwide as of November 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?
Generalitat DE Catalunya tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most administrative services organizations?
The United States leads with 3,222 companies, followed by France (1,201) and the Netherlands (926). Every administrative services organizations list by country and city is linked on this page.
Which city has the most administrative services organizations?
Sao Paulo leads with 183 company records, followed by London (84) and Paris (78).
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 54,150 professional contacts with verified work emails tracked across these 14,439 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 November 6, 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.
More company lists
Company intelligence · public preview
Top 25 administrative services organizations worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 14,439 matching company records for administrative services organizations worldwide, with 205,643 tracked contacts and 54,150 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 administrative services organizations worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Generalitat DE Catalunyagencat.catHQ: Barcelona, SpainReported employees: 10001+ | Barcelona, Spain | 10001+ | Exact match | 26,969 contacts → |
“Informació, serveis i tràmits a gencat.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TMF Grouptmf-group.comHQ: Amsterdam, NetherlandsReported employees: 10001+ | Amsterdam, Netherlands | 10001+ | Exact match | 11,520 contacts → |
“We provide employee, financial and legal administration so that firms can invest and operate safely around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Parallonparallon.comHQ: Nashville, TN, United StatesReported employees: 10001+ | Nashville, TN, United States | 10001+ | Exact match | 6,280 contacts → |
“Parallon leverages extensive expertise across a broad portfolio of revenue cycle, contact center, and clinical and administrative shared services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Insperityinsperity.comHQ: Kingwood, TX, United StatesReported employees: 1,001-5,000 | Kingwood, TX, United States | 1,001-5,000 | Exact match | 4,943 contacts → |
“Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  GUSTOgusto.comHQ: San Francisco, CO, United StatesReported employees: 1,001-5,000 | San Francisco, CO, United States | 1,001-5,000 | Exact match | 4,083 contacts → |
“Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Vensure Employer Solutionsvensure.comHQ: Chandler, FL, United StatesReported employees: 1,001-5,000 | Chandler, FL, United States | 1,001-5,000 | Exact match | 2,771 contacts → |
“VensureHR is the direct employer services business unit of Vensure Employer Solutions, the largest privately held organization in the HR technology and services sector, delivering…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Nextcarenextcarehealth.comHQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,979 contacts → |
“Nextcare is the leading “Third Party Administrator” (TPA) for the insurance industry in the GCC & MENA region.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Securexsecurex.beHQ: Brussel - Bruxelles, BelgiumReported employees: 1,001-5,000 | Brussel - Bruxelles, Belgium | 1,001-5,000 | Exact match | 1,784 contacts → |
“At Securex, we help you catch a breather.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Partena Professionalpartena-professional.beHQ: Brussels, BelgiumReported employees: 1,001-5,000 | Brussels, Belgium | 1,001-5,000 | Exact match | 1,459 contacts → |
“Partena Professional is a service provider with a strong focus on entrepreneurship and personnel management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  PACSpacs.comHQ: Salt Lake City, UT, United StatesReported employees: 501-1,000 | Salt Lake City, UT, United States | 501-1,000 | Exact match | 1,447 contacts → |
“PACS trains and hires healthcare leaders, and provides a wide array of back-office support services to healthcare facilities, reducing administrative burdens so local leadership…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Liantisliantis.beHQ: Brussels, BelgiumReported employees: 1,001-5,000 | Brussels, Belgium | 1,001-5,000 | Exact match | 1,425 contacts → |
“Liantis ondersteunt meer dan zelfstandige ondernemers en 67.500 werkgevers in ons land.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  NASCOnasco.comHQ: Atlanta, PA, United StatesReported employees: 201-500 | Atlanta, PA, United States | 201-500 | Exact match | 1,182 contacts → |
“NASCO empowers health plans to innovate, grow, and deliver better experiences through a comprehensive suite of healthcare technology solutions and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  FHPLfhpl.netHQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,082 contacts → |
“Incorporated in the year 1995 and licensed by IRDAI in the year 2002, Family Health Plan Insurance TPA Limited (FHPL) has its registered office in Chennai and Corporate office in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Imarque Solutions Pvt. LTDimarque.comHQ: Chennai, IndiaReported employees: 1,001-5,000 | Chennai, India | 1,001-5,000 | Exact match | 959 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Osesp Serviçososespservicos.com.brHQ: Sao Paulo, BrazilReported employees: 10001+ | Sao Paulo, Brazil | 10001+ | Exact match | 945 contacts → |
“Somos excelência em serviços terceirizados.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  G&a Partnersgnapartners.comHQ: Houston, CA, United StatesReported employees: 501-1,000 | Houston, CA, United States | 501-1,000 | Exact match | 915 contacts → |
“Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Smithbucklinsmithbucklin.comHQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 754 contacts → |
“Associations help industries, fields and professions stay current and connected for the members and communities who depend on them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Medica Health Managementmedicahealth.comHQ: Southlake, TX, United StatesReported employees: 201-500 | Southlake, TX, United States | 201-500 | Exact match | 645 contacts → |
“Medica Health Management provides comprehensive business management services, including: clinical, financial, administrative, human resources and marketing to Home Health and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Metriqe Solutionsmetriqe.comHQ: Irving, TX, United StatesReported employees: 201-500 | Irving, TX, United States | 201-500 | Exact match | 618 contacts → |
“Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Group Management Services, INCgroupmgmt.comHQ: Richfield, NC, United StatesReported employees: 501-1,000 | Richfield, NC, United States | 501-1,000 | Exact match | 611 contacts → |
“We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Brickwork Indiabrickworkindia.comHQ: Bangalore, IndiaReported employees: 201-500 | Bangalore, India | 201-500 | Exact match | 607 contacts → |
“Brickwork India, a Women-owned Business Enterprise (WBE) and an ISO 27001: 2022 certified company, is the pioneer and leader in the Global Business Support Services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Accsourceaccsource.netHQ: Pymble, AustraliaReported employees: 501-1,000 | Pymble, Australia | 501-1,000 | Exact match | 589 contacts → |
“AccSource is an ISO27001-certified business process outsourcing company specialising in accounting, operational, administrative and compliance business processes for all small to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  IBSibsns.comHQ: New Maadi, EgyptReported employees: 10001+ | New Maadi, Egypt | 10001+ | Exact match | 558 contacts → |
“We are a proud and happy company that serves the outsourcing field with passion and commitment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Executive Director, INCexecinc.comHQ: Milwaukee, WI, United StatesReported employees: 201-500 | Milwaukee, WI, United States | 201-500 | Exact match | 549 contacts → |
“EDI is a top company in association management, providing professional services for national and international medical, certification, and scientific associations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Coadvantagecoad.comHQ: Bradenton, FL, United StatesReported employees: 201-500 | Bradenton, FL, United States | 201-500 | Exact match | 519 contacts → |
“CoAdvantage is now CoAd.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 14,439 company matches
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Administrative services organizations: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
14,321 records in the displayed employee bands.
118 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 14,439 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Administrative services organizations by location
58 lists · largest firstEvery Administrative services organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Administrative services organizations based in the United States3,222
- Administrative services organizations based in France1,201
- Administrative services organizations based in the Netherlands926
- Administrative services organizations based in Brazil887
- Administrative services organizations based in the United Kingdom647
- Administrative services organizations based in Italy537
- Administrative services organizations based in India487
- Administrative services organizations based in Australia282
- Administrative services organizations based in Spain280
- Administrative services organizations based in Canada262
- Administrative services organizations based in South Africa252
- Administrative services organizations based in Belgium240
- Administrative services organizations based in Germany215
- Administrative services organizations based in Switzerland197
- Administrative services organizations based in Poland172
- Administrative services organizations based in Mexico169
- Administrative services organizations based in the Philippines118
- Administrative services organizations based in Colombia112
- Administrative services organizations based in Sweden100
- Administrative services organizations based in Portugal94
- Administrative services organizations based in Argentina79
- Administrative services organizations based in Chile77
- Administrative services organizations based in Denmark75
- Administrative services organizations based in the United Arab Emirates59
- Administrative services organizations based in New Zealand56
- Administrative services organizations based in Egypt41
- Administrative services organizations based in Malaysia34
- Administrative services organizations based in Ireland32
- Administrative services organizations based in Norway27
- Administrative services organizations based in Israel26
- Administrative services organizations based in Finland25
Cities
- Administrative services organizations based in Sao Paulo, Brazil183
- Administrative services organizations based in London, United Kingdom79
- Administrative services organizations based in Paris, France78
- Administrative services organizations based in Rio De Janeiro, Brazil64
- Administrative services organizations based in Houston, United States62
- Administrative services organizations based in Atlanta, United States61
- Administrative services organizations based in New York, United States60
- Administrative services organizations based in Johannesburg, South Africa39
- Administrative services organizations based in Warsaw, Poland36
- Administrative services organizations based in Los Angeles, United States35
- Administrative services organizations based in Austin, United States34
- Administrative services organizations based in Chicago, United States32
- Administrative services organizations based in Mexico City, Mexico32
- Administrative services organizations based in Sydney, Australia32
- Administrative services organizations based in Denver, United States31
- Administrative services organizations based in Phoenix, United States31
- Administrative services organizations based in Chennai, India30
- Administrative services organizations based in Toronto, Canada30
- Administrative services organizations based in Miami, United States29
- Administrative services organizations based in Las Vegas, United States28
- Administrative services organizations based in Pretoria, South Africa28
- Administrative services organizations based in Stockholm, Sweden28
- Administrative services organizations based in Dallas, United States27
- Administrative services organizations based in Melbourne, Australia26
- Administrative services organizations based in San Diego, United States26
- Administrative services organizations based in Tampa, United States26
- Administrative services organizations based in Amsterdam, Netherlands25
Questions about this company list
What does Exact match mean for administrative services organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many administrative services organizations did RevenueBase find worldwide?
The saved snapshot records 14,439 matching company records, 205,643 tracked contacts and 54,150 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 administrative services organizations worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/administrative-services-organizations.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 administrative services organizations worldwide
RevenueBase records 14,439 matching company records for administrative services organizations worldwide, with 205,643 tracked contacts and 54,150 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 administrative services organizations worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Generalitat DE Catalunyagencat.cat HQ: Barcelona, SpainReported employees: 10001+ | Barcelona, Spain | 10001+ | Exact match | 26,969 contacts → |
“Informació, serveis i tràmits a gencat.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TMF Grouptmf-group.com HQ: Amsterdam, NetherlandsReported employees: 10001+ | Amsterdam, Netherlands | 10001+ | Exact match | 11,520 contacts → |
“We provide employee, financial and legal administration so that firms can invest and operate safely around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Parallonparallon.com HQ: Nashville, TN, United StatesReported employees: 10001+ | Nashville, TN, United States | 10001+ | Exact match | 6,280 contacts → |
“Parallon leverages extensive expertise across a broad portfolio of revenue cycle, contact center, and clinical and administrative shared services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Insperityinsperity.com HQ: Kingwood, TX, United StatesReported employees: 1,001-5,000 | Kingwood, TX, United States | 1,001-5,000 | Exact match | 4,943 contacts → |
“Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | GUSTOgusto.com HQ: San Francisco, CO, United StatesReported employees: 1,001-5,000 | San Francisco, CO, United States | 1,001-5,000 | Exact match | 4,083 contacts → |
“Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Vensure Employer Solutionsvensure.com HQ: Chandler, FL, United StatesReported employees: 1,001-5,000 | Chandler, FL, United States | 1,001-5,000 | Exact match | 2,771 contacts → |
“VensureHR is the direct employer services business unit of Vensure Employer Solutions, the largest privately held organization in the HR technology and services sector, delivering…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Nextcarenextcarehealth.com HQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,979 contacts → |
“Nextcare is the leading “Third Party Administrator” (TPA) for the insurance industry in the GCC & MENA region.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Securexsecurex.be HQ: Brussel - Bruxelles, BelgiumReported employees: 1,001-5,000 | Brussel - Bruxelles, Belgium | 1,001-5,000 | Exact match | 1,784 contacts → |
“At Securex, we help you catch a breather.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Partena Professionalpartena-professional.be HQ: Brussels, BelgiumReported employees: 1,001-5,000 | Brussels, Belgium | 1,001-5,000 | Exact match | 1,459 contacts → |
“Partena Professional is a service provider with a strong focus on entrepreneurship and personnel management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | PACSpacs.com HQ: Salt Lake City, UT, United StatesReported employees: 501-1,000 | Salt Lake City, UT, United States | 501-1,000 | Exact match | 1,447 contacts → |
“PACS trains and hires healthcare leaders, and provides a wide array of back-office support services to healthcare facilities, reducing administrative burdens so local leadership…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Liantisliantis.be HQ: Brussels, BelgiumReported employees: 1,001-5,000 | Brussels, Belgium | 1,001-5,000 | Exact match | 1,425 contacts → |
“Liantis ondersteunt meer dan zelfstandige ondernemers en 67.500 werkgevers in ons land.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | NASCOnasco.com HQ: Atlanta, PA, United StatesReported employees: 201-500 | Atlanta, PA, United States | 201-500 | Exact match | 1,182 contacts → |
“NASCO empowers health plans to innovate, grow, and deliver better experiences through a comprehensive suite of healthcare technology solutions and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | FHPLfhpl.net HQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,082 contacts → |
“Incorporated in the year 1995 and licensed by IRDAI in the year 2002, Family Health Plan Insurance TPA Limited (FHPL) has its registered office in Chennai and Corporate office in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Imarque Solutions Pvt. LTDimarque.com HQ: Chennai, IndiaReported employees: 1,001-5,000 | Chennai, India | 1,001-5,000 | Exact match | 959 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Osesp Serviçososespservicos.com.br HQ: Sao Paulo, BrazilReported employees: 10001+ | Sao Paulo, Brazil | 10001+ | Exact match | 945 contacts → |
“Somos excelência em serviços terceirizados.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | G&a Partnersgnapartners.com HQ: Houston, CA, United StatesReported employees: 501-1,000 | Houston, CA, United States | 501-1,000 | Exact match | 915 contacts → |
“Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Smithbucklinsmithbucklin.com HQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 754 contacts → |
“Associations help industries, fields and professions stay current and connected for the members and communities who depend on them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Medica Health Managementmedicahealth.com HQ: Southlake, TX, United StatesReported employees: 201-500 | Southlake, TX, United States | 201-500 | Exact match | 645 contacts → |
“Medica Health Management provides comprehensive business management services, including: clinical, financial, administrative, human resources and marketing to Home Health and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Metriqe Solutionsmetriqe.com HQ: Irving, TX, United StatesReported employees: 201-500 | Irving, TX, United States | 201-500 | Exact match | 618 contacts → |
“Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Group Management Services, INCgroupmgmt.com HQ: Richfield, NC, United StatesReported employees: 501-1,000 | Richfield, NC, United States | 501-1,000 | Exact match | 611 contacts → |
“We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Brickwork Indiabrickworkindia.com HQ: Bangalore, IndiaReported employees: 201-500 | Bangalore, India | 201-500 | Exact match | 607 contacts → |
“Brickwork India, a Women-owned Business Enterprise (WBE) and an ISO 27001: 2022 certified company, is the pioneer and leader in the Global Business Support Services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Accsourceaccsource.net HQ: Pymble, AustraliaReported employees: 501-1,000 | Pymble, Australia | 501-1,000 | Exact match | 589 contacts → |
“AccSource is an ISO27001-certified business process outsourcing company specialising in accounting, operational, administrative and compliance business processes for all small to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | IBSibsns.com HQ: New Maadi, EgyptReported employees: 10001+ | New Maadi, Egypt | 10001+ | Exact match | 558 contacts → |
“We are a proud and happy company that serves the outsourcing field with passion and commitment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Executive Director, INCexecinc.com HQ: Milwaukee, WI, United StatesReported employees: 201-500 | Milwaukee, WI, United States | 201-500 | Exact match | 549 contacts → |
“EDI is a top company in association management, providing professional services for national and international medical, certification, and scientific associations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Coadvantagecoad.com HQ: Bradenton, FL, United StatesReported employees: 201-500 | Bradenton, FL, United States | 201-500 | Exact match | 519 contacts → |
“CoAdvantage is now CoAd.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 14,439 company matches
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Administrative services organizations: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
14,321 records in the displayed employee bands.
118 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 14,439 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Administrative services organizations by location
58 lists · largest firstEvery Administrative services organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Administrative services organizations based in the United States3,222
- Administrative services organizations based in France1,201
- Administrative services organizations based in the Netherlands926
- Administrative services organizations based in Brazil887
- Administrative services organizations based in the United Kingdom647
- Administrative services organizations based in Italy537
- Administrative services organizations based in India487
- Administrative services organizations based in Australia282
- Administrative services organizations based in Spain280
- Administrative services organizations based in Canada262
- Administrative services organizations based in South Africa252
- Administrative services organizations based in Belgium240
- Administrative services organizations based in Germany215
- Administrative services organizations based in Switzerland197
- Administrative services organizations based in Poland172
- Administrative services organizations based in Mexico169
- Administrative services organizations based in the Philippines118
- Administrative services organizations based in Colombia112
- Administrative services organizations based in Sweden100
- Administrative services organizations based in Portugal94
- Administrative services organizations based in Argentina79
- Administrative services organizations based in Chile77
- Administrative services organizations based in Denmark75
- Administrative services organizations based in the United Arab Emirates59
- Administrative services organizations based in New Zealand56
- Administrative services organizations based in Egypt41
- Administrative services organizations based in Malaysia34
- Administrative services organizations based in Ireland32
- Administrative services organizations based in Norway27
- Administrative services organizations based in Israel26
- Administrative services organizations based in Finland25
Cities
- Administrative services organizations based in Sao Paulo, Brazil183
- Administrative services organizations based in London, United Kingdom79
- Administrative services organizations based in Paris, France78
- Administrative services organizations based in Rio De Janeiro, Brazil64
- Administrative services organizations based in Houston, United States62
- Administrative services organizations based in Atlanta, United States61
- Administrative services organizations based in New York, United States60
- Administrative services organizations based in Johannesburg, South Africa39
- Administrative services organizations based in Warsaw, Poland36
- Administrative services organizations based in Los Angeles, United States35
- Administrative services organizations based in Austin, United States34
- Administrative services organizations based in Chicago, United States32
- Administrative services organizations based in Mexico City, Mexico32
- Administrative services organizations based in Sydney, Australia32
- Administrative services organizations based in Denver, United States31
- Administrative services organizations based in Phoenix, United States31
- Administrative services organizations based in Chennai, India30
- Administrative services organizations based in Toronto, Canada30
- Administrative services organizations based in Miami, United States29
- Administrative services organizations based in Las Vegas, United States28
- Administrative services organizations based in Pretoria, South Africa28
- Administrative services organizations based in Stockholm, Sweden28
- Administrative services organizations based in Dallas, United States27
- Administrative services organizations based in Melbourne, Australia26
- Administrative services organizations based in San Diego, United States26
- Administrative services organizations based in Tampa, United States26
- Administrative services organizations based in Amsterdam, Netherlands25
Questions about this company list
What does Exact match mean for administrative services organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many administrative services organizations did RevenueBase find worldwide?
The saved snapshot records 14,439 matching company records, 205,643 tracked contacts and 54,150 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 administrative services organizations worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/administrative-services-organizations.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗