Company lists · Data refreshed September 2026
Top 25 Employer health plan administrators worldwide
RevenueBase identified 4,859 employer health plan administrators worldwide as of September 2026 and tracks 390,835 professional contacts across them, including 92,782 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers employer health plan administrators 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 19, 2026. Country and city lists for employer health plan administrators 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.
The 25 largest employer health plan administrators worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 68,350 contacts → | ||||
Partial evidence “UnitedHealth Group is a health care and well-being company with a mission to help people live healthier lives and help make the health system work better for everyone.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24,784 contacts → | ||||
Partial evidence “We are a health benefits provider that advocates for better health through every stage of life.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 18,559 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 17,458 contacts → | ||||
Partial evidence “Health Care Service Corporation serves nearly 23 million people across the United States through its portfolio of health benefit solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 13,144 contacts → | ||||
Partial evidence “When it comes to your health, everything matters.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 10,841 contacts → | ||||
Partial evidence “Since our founding in 1848, Unum has been a leader in the employee benefits business through innovation, integrity and an unwavering commitment to our customers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 9,421 contacts → | ||||
Partial evidence “At Anthem Blue Cross and Blue Shield we understand our health connects us to each other.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 7,742 contacts → | ||||
Indirect evidence “Colonial Life & Accident Insurance Company, a subsidiary of Unum Group, provides financial protection benefits to America’s workers and their families when the unexpected happens.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5,446 contacts → | ||||
Indirect evidence “For more than six decades, BlueCross BlueShield of South Carolina has been part of the national landscape.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4,732 contacts → | ||||
Partial evidence “Magellan Health is a leader in managing the fastest growing, most complex areas of health.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4,363 contacts → | ||||
Indirect evidence “How can we best serve our members and the community?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3,574 contacts → | ||||
Indirect evidence “En NUEVA EPS estamos donde más se necesita.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3,490 contacts → | ||||
Indirect evidence “CorVel is a nationally recognized claims management and managed care provider with over 30 years of experience in the industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3,478 contacts → | ||||
Partial evidence “OneDigital’s team of fierce advocates helps businesses and individuals achieve their aspirations of health, success and financial security.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3,413 contacts → | ||||
Partial evidence “A national blended health organization, Highmark Health and our leading businesses support millions of customers with products, services and solutions closely aligned to our…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3,007 contacts → | ||||
Strong evidence “We are India’s leading HealthTech and InsurTech company focused on administering health benefits across employers, retail members, and public health schemes.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2,910 contacts → | ||||
Indirect evidence “En Consalud nos preocupamos por resolver de la mejor manera las necesidades de salud de nuestros beneficiarios, mediante servicios de calidad que entreguen soluciones de manera…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2,667 contacts → | ||||
Partial evidence “Founded in 1934, Medical Mutual is the oldest and one of the largest health insurance companies based in Ohio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2,593 contacts → | ||||
Partial evidence “EmblemHealth is one of America’s largest not-for-profit health insurers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2,420 contacts → | ||||
Partial evidence “Blue Cross and Blue Shield of Alabama is the largest provider of healthcare benefits in Alabama, providing coverage to more than 2.9 million people in Alabama and other areas of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,092 contacts → | ||||
Partial evidence “Staying healthy, becoming healthy or living with an illness.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2,077 contacts → | ||||
Indirect evidence “Somos una Compañía de aseguramiento, prestación, administración y promoción de la Salud que ofrece las mejores combinaciones de coberturas, servicios y soluciones, basada en el…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2,043 contacts → | ||||
Indirect evidence “We’re here to help you bring out your best self.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2,039 contacts → | ||||
Indirect evidence “American Fidelity is more than an insurance company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,929 contacts → | ||||
Partial evidence “Nextcare is the leading “Third Party Administrator” (TPA) for the insurance industry in the GCC & MENA region.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: employer health plan administrators. 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 employer health plan administrators.
- Partial evidence
- Its own public description names part of employer health plan administrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name employer health plan administrators. 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 4,859 employer health plan administrators worldwide
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Employer health plan administrators worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 employer health plan administrators, 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 employer health plan administrators are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “employer health plan administrators”. 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 employer health plan administrators), 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 employer health plan administrators, 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, 92,782 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 19, 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.
Employer health plan administrators by location
21 lists · largest firstEvery Employer health plan administrators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Employer health plan administrators based in the United States2,442
- Employer health plan administrators based in Brazil1,082
- Employer health plan administrators based in Canada131
- Employer health plan administrators based in Germany63
- Employer health plan administrators based in India60
- Employer health plan administrators based in France41
- Employer health plan administrators based in the United Kingdom38
Cities
- Employer health plan administrators based in Sao Paulo, Brazil309
- Employer health plan administrators based in Rio De Janeiro, Brazil119
- Employer health plan administrators based in Curitiba, Brazil45
- Employer health plan administrators based in Houston, United States37
- Employer health plan administrators based in Phoenix, United States35
- Employer health plan administrators based in New York, United States32
- Employer health plan administrators based in Tampa, United States30
- Employer health plan administrators based in Atlanta, United States28
- Employer health plan administrators based in Porto Alegre, Brazil27
- Employer health plan administrators based in Chicago, United States26
- Employer health plan administrators based in Dallas, United States26
- Employer health plan administrators based in Las Vegas, United States26
- Employer health plan administrators based in Miami, United States25
- Employer health plan administrators based in San Diego, United States25
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 employer health plan administrators, 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 employer health plan administrators are there worldwide?
RevenueBase identified 4,859 employer health plan administrators 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?
Unitedhealth Group, headquartered in Las Vegas, tops this list with the largest team on record.
Which country has the most employer health plan administrators?
The United States leads with 2,442 companies, followed by Brazil (1,082) and Canada (131). Every employer health plan administrators list by country and city is linked on this page.
Which city has the most employer health plan administrators?
Sao Paulo leads with 309 headquartered companies, followed by Rio De Janeiro (119) and Belo Horizonte (40).
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 92,782 verified decision-maker contacts tracked across these 4,859 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 19, 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.