Company lists · Data refreshed September 2026

Top 25 Health insurance carriers worldwide

RevenueBase identified 1,674 health insurance carriers worldwide as of September 2026 and tracks 211,878 professional contacts across them, including 60,953 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 health insurance carriers 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 16, 2026. Country and city lists for health insurance carriers 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 16, 2026 86% judged on-target in blind review
1,674Companies
211,878Contacts tracked
60,953Verified emails
0Mobile numbers
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The 25 largest health insurance carriers worldwide

Ranked by team size
Top 25 of 1,674 health insurance carriers worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to health insurance carriers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSaint Louis, MO, United StatesHQ checked Sep 16, 202610001+26,099 contacts →

Partial evidence

“Centene Corporation is a leading healthcare enterprise committed to helping people live healthier lives.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 16, 2026n/a18,559 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceChicago, IL, United StatesHQ checked Sep 16, 202610001+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 16, 2026
4Partial evidenceMadison, WI, United StatesHQ checked Sep 16, 202610001+17,111 contacts →

Partial evidence

“For more than 90 years, American Family Insurance has built its reputation on sound principles.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceMinnetonka, MN, United StatesHQ checked Sep 16, 202610001+13,144 contacts →

Partial evidence

“When it comes to your health, everything matters.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 16, 202610001+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 16, 2026
7Indirect evidenceColumbia, SC, United StatesHQ checked Sep 16, 202610001+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 16, 2026
8Partial evidenceWoodland Hills, CA, United StatesHQ checked Sep 16, 20261,001-5,0005,376 contacts →

Partial evidence

“Our mission at Health Net is to transform the health of communities, one person at a time.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceNewark, NJ, United StatesHQ checked Sep 16, 20265,001-10,0004,986 contacts →

Partial evidence

“Horizon Blue Cross Blue Shield of New Jersey- the state’s largest and oldest health insurer - is a subsidiary of Horizon Mutual Holdings, Inc, a not-for-profit mutual holding…”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceDayton, OH, United StatesHQ checked Sep 16, 20261,001-5,0004,429 contacts →

Partial evidence

Health Care with Heart.”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceMumbai, IndiaHQ checked Sep 16, 20261,001-5,0004,417 contacts →

Strong evidence

“Aditya Birla Health Insurance Co.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 16, 20261,001-5,0004,363 contacts →

Indirect evidence

“How can we best serve our members and the community?”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceBoston, MA, United StatesHQ checked Sep 16, 20261,001-5,0003,507 contacts →

Partial evidence

“Blue Cross Blue Shield of Massachusetts is a community-focused, tax-paying, not-for-profit health plan headquartered in Boston.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidencePittsburgh, PA, United StatesHQ checked Sep 16, 202610001+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 16, 2026
15Indirect evidenceMountlake Terrace, WA, United StatesHQ checked Sep 16, 20261,001-5,0003,049 contacts →

Indirect evidence

“The customer is the center of all we do.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceGrapevine, TX, United StatesHQ checked Sep 16, 2026n/a2,876 contacts →

Indirect evidence

“USHEALTH Advisors is a wholly-owned national sales and distribution subsidiary of USHEALTH Group, Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceCleveland, OH, United StatesHQ checked Sep 16, 20261,001-5,0002,667 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 16, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 16, 20261,001-5,0002,593 contacts →

Partial evidence

“EmblemHealth is one of America’s largest not-for-profit health insurers.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceBirmingham, AL, United StatesHQ checked Sep 16, 20261,001-5,0002,420 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 16, 2026
20Partial evidencePhoenix, AZ, United StatesHQ checked Sep 16, 20261,001-5,0002,168 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 16, 2026
21Partial evidenceBuffalo, NY, United StatesHQ checked Sep 16, 20261,001-5,0001,847 contacts →

Partial evidence

“As one of Western New York's first HMOs, Independent Health covers approximately people here and across the country with more than 100 plans, services and products.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceMumbai, IndiaHQ checked Sep 16, 20261,001-5,0001,818 contacts →

Strong evidence

“At Manipal Cigna Health Insurance, we resonate with your commitment to your family’s health and well-being through a range of comprehensive Health Insurance plans.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceHarrisburg, PA, United StatesHQ checked Sep 16, 20261,001-5,0001,770 contacts →

Indirect evidence

“At Capital Blue Cross, we promise to go the extra mile for our team and our community.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 16, 20265,001-10,0001,574 contacts →

Indirect evidence

“Somos a Assim Saúde, uma operadora fundada em 1988 no Rio de Janeiro, que hoje cuida de mais de clientes entre planos de saúde e odontológicos.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidencePortland, OR, United StatesHQ checked Sep 16, 20265,001-10,0001,463 contacts →

Partial 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 16, 2026

Showing 25 of 1,674 health insurance carriers worldwide

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Health insurance carriers worldwide at a glance

As of Sep 16, 2026
28.8%Verified-email coverage
126.6Average contacts per company
1-10Median size (employees)
5.8%Largest-city concentration · Sao Paulo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
919
11-50
424
51-200
165
201-500
58
501-1,000
31
1,001-5,000
42
5,001-10,000
14
10001+
15

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 health insurance carriers, 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
5 countries, largest first: the United States, Brazil, Germany, India, Argentina. Country and city lists for health insurance carriers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “health insurance carriers”. 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 health insurance carriers), 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 health insurance carriers, 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, 60,953 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 16, 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.

Health insurance carriers by location

5 lists · largest first

Every Health insurance carriers 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 health insurance carriers, 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 health insurance carriers are there worldwide?

RevenueBase identified 1,674 health insurance carriers 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 health insurance carriers?

The United States leads with 1,078 companies, followed by Brazil (491) and Germany (40). Every health insurance carriers list by country and city is linked on this page.

Which city has the most health insurance carriers?

Sao Paulo leads with 97 headquartered companies, followed by Rio De Janeiro (48) and Dallas (22).

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 60,953 verified decision-maker contacts tracked across these 1,674 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 16, 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.