Gross premiums written by leading reinsurers in the U.S. 2018

The leading reinsurer in the United States as of the fourth quarter in 2018, National Indemnity Company, had 27.12 billion U.S. dollars’ worth of gross premiums written.


Reinsurance is a type of insurance that other insurance companies take out to reduce risk. Essentially, it works to restrict the amount of money an insurer can possibly lose and, in turn, protects their own customers from losses. There are two procedures for reinsurance, facultative and treaty. Facultative reinsurance is when an insurance company buys insurance for a specific instance or occurrence. Treaty reinsurance covers a set of predetermined risks over a period of time. Facultative is seen as a one-time deal whereas treaty reinsurance is long term. There are several types of reinsurance which include proportional, non-proportional, risk attaching basis, losses occurring basis, and a claims-made basis. The proportional structure of reinsurance means that the reinsurer will handle a part of the losses, in which it gets a prorated share of the insurer’s premiums. The non-proportional reinsurance structure means the agreement will start when the insurer’s losses surpass a certain amount.

Leading companies

In 2018, National Indemnity Co. was the leading reinsurer in net premiums earned that year, having a significant lead over all other companies. They also had the highest value of policyholder surplus generated that year. However, it was Odyssey Reins. Group that wrote the most direct premiums that year.

Value of gross premiums written by leading reinsurers in the United States as of 4th quarter of 2018

Amount in billion U.S. dollars
National Indemnity Company27.12
Everest Reinsurance Company6.57
Munich Re America, Corp.5.5
XL Reinsurance America5.47
Swiss Reinsurance America Corporation4.33
Transatlantic Reinsurance Company3.95
Odyssey Group3.09
General Re Group2.52
SCOR U.S. Corporation1.82
Partner Reinsurance Company of the U.S.1.57
AXIS Reinsurance Company1.18
American Agricultural Ins. Co.0.99
Endurance Assurance Corporation0.96
Renaissance Reinsurance US Inc.0.77
The Toa Reinsurance Company of America0.48
Sirius America Insurance Company0.29
EMC Reinsurance Company0.16
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Release date

April 2019


United States

Survey time period

Q4 2018

Supplementary notes

Figures have been rounded.

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