Company lists · Data refreshed September 2026
Top 25 Marketplace health insurance plans worldwide
RevenueBase identified 1,011 marketplace health insurance plans worldwide as of September 2026 and tracks 102,844 professional contacts across them, including 31,011 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.
This list covers marketplace health insurance plans 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 17, 2026. Country and city lists for marketplace health insurance plans 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 marketplace health insurance plans worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 26,099 contacts → | ||||
Partial evidence “Centene Corporation is a leading healthcare enterprise committed to helping people live healthier lives.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 13,144 contacts → | ||||
Partial evidence “When it comes to your health, everything matters.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,429 contacts → | ||||
Partial evidence “Health Care with Heart.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4,363 contacts → | ||||
Indirect evidence “How can we best serve our members and the community?” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2,935 contacts → | ||||
Partial evidence “Millions of Americans have counted on HealthMarkets to protect their health and financial well-being.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2,667 contacts → | ||||
Strong 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 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2,593 contacts → | ||||
Partial evidence “EmblemHealth is one of America’s largest not-for-profit health insurers.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2,168 contacts → | ||||
Partial evidence “Blue Cross ® Blue Shield ® of Arizona (AZ Blue) is committed to helping Arizonans get healthier faster and stay healthier longer.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2,113 contacts → | ||||
Partial evidence “At GoHealth, advancing health equity starts with the intentional, data-driven application of proprietary technology, beneficiary and Medicare-expert insight, and an unwavering…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,463 contacts → | ||||
Strong evidence “Regence is part of a family of regional health plans that have been a symbol of strength and stability in local communities for more than 100 years.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1,094 contacts → | ||||
Strong evidence “Curative is a leading healthcare services company that created and launched the first-of-its-kind employer-based health insurance plan.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 775 contacts → | ||||
Strong evidence “As a member-owned, not-for-profit health insurance company, we're committed to providing affordable and accessible health care.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 626 contacts → | ||||
Partial evidence “A family of companies providing a better level of innovative health coverage for people just like you.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 617 contacts → | ||||
Strong evidence “Optima Health is now Sentara Health Plans.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 402 contacts → | ||||
Partial evidence “ConnectiCare is a leading health plan in the state of Connecticut.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 399 contacts → | ||||
Partial evidence “Founded in 1995, VIVA HEALTH is now the preferred healthcare provider for close to 300 Alabama companies and more than members and growing.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 320 contacts → | ||||
Strong evidence “Surest, a UnitedHealthcare company, is dedicated to redesigning health insurance, offering a simpler and more transparent way for people to access the health care system.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 236 contacts → | ||||
Strong evidence “Sidecar Health is changing the health industry with modern, common-sense health insurance that finally gives consumers control over costs and choices.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 233 contacts → | ||||
Partial evidence “HealthSherpa's mission is to help every American feel the comfort and security of having health coverage.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 228 contacts → | ||||
Indirect evidence “O Grupo AllCross é referência em consultoria de planos de saúde, odontológicos e seguros no país.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 221 contacts → | ||||
Strong evidence “Connect for Health Colorado offers individuals, families and small employers a new online marketplace for health insurance and exclusive access to new up-front financial…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 201 contacts → | ||||
Partial evidence “Empire has been serving the health care needs of New Yorkers for more than 80 years.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 197 contacts → | ||||
Indirect evidence “A Agecor Saúde é uma das maiores corretoras de planos de saúde do Rio de Janeiro e se destaca pela transparência no atendimento e preço.” Source: RevenueBase Database · checked Sep 17, 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: marketplace health insurance plans. 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 marketplace health insurance plans.
- Partial evidence
- Its own public description names part of marketplace health insurance plans, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name marketplace health insurance plans. 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 1,011 marketplace health insurance plans worldwide
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Marketplace health insurance plans worldwide at a glance
As of Sep 17, 2026Companies by employee count
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 marketplace health insurance plans, 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
- 2 countries, largest first: the United States, Brazil. Country and city lists for marketplace health insurance plans are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “marketplace health insurance plans”. 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 marketplace health insurance plans), 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 marketplace health insurance plans, 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, 31,011 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 17, 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.
Marketplace health insurance plans by location
2 lists · largest firstEvery Marketplace health insurance plans list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 marketplace health insurance plans, 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 marketplace health insurance plans are there worldwide?
RevenueBase identified 1,011 marketplace health insurance plans 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?
Centene Corporation, headquartered in Saint Louis, tops this list with the largest team on record.
Which country has the most marketplace health insurance plans?
The United States leads with 720 companies, followed by Brazil (291). Every marketplace health insurance plans list by country and city is linked on this page.
Which city has the most marketplace health insurance plans?
Sao Paulo leads with 66 headquartered companies, followed by Rio De Janeiro (31) and Tampa (17).
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 31,011 verified decision-maker contacts tracked across these 1,011 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 17, 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.