Who are the major players in reinsurance?

Who Dominates the Reinsurance Landscape?

When it comes to reinsurance—the business of insuring insurers—size and stability matter. A few key names stand out in this specialized financial sector, shaping how risk is managed on a global scale.

At the top of the list is Berkshire Hathaway Inc., the conglomerate led by Warren Buffett. With reinsurance premiums exceeding $26 billion, it’s not just a major player—it’s the dominant force. Its strength lies in both life and non-life reinsurance, backed by a reputation for long-term contracts and financial resilience.

Right behind is Lloyd’s of London, a historic name with a unique marketplace structure. Though not a single company, Lloyd's syndicates collectively generate around $4.5 billion in reinsurance premiums, making it a key global player. Its centuries-old model continues to adapt, especially in complex and specialty risk areas.

Another heavyweight is SCOR S.E., a French multinational renowned for its expertise in life reinsurance. While its premium volume is smaller than Berkshire’s, SCOR remains a core player in Europe and beyond, particularly focused on longevity and mortality risk.

And then there’s the Reinsurance Group of America (RGA), ranking fourth with $15.5 billion in premiums. RGA specializes in life and health reinsurance, helping insurers manage mortality risk across diverse markets. It’s a go-to partner for carriers looking to expand or stabilize their portfolios.

These companies don’t just lead in numbers—they set the tone for how risk is priced, transferred, and managed worldwide. From Omaha to Paris to London, the reinsurance world is tightly knit, where trust, capital strength, and strategic vision separate the leaders from the rest.