Chubb Limited

Chubb Limited is an American company incorporated in Zürich, Switzerland. It is the parent company of Chubb, a global provider of insurance products covering property and casualty, accident and health, reinsurance, and life insurance and is the largest publicly traded property and casualty insurance company in the world. Chubb operates in 55 countries and territories and in the Lloyd's insurance market in London. Clients of Chubb consist of multinational corporations and local businesses, individuals, and insurers seeking reinsurance coverage. Chubb provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance, and life insurance.

In 2018, the group had $174 billion in assets, $30.8 billion of gross written premiums and approximately 31,000 employees. Chubb trades on the New York Stock Exchange and is a component of the S&P 500 index. Its core operating insurance companies are rated "AA" (Very Strong) for financial strength by Standard & Poor's and "A++" (Superior) by A. M. Best with stable outlooks from both agencies. Fitch rates Chubb Limited and its subsidiaries "AA" (Very Strong) for financial strength, "AA−" for issuer default and "A+" for senior debt. Moody's rates the U.S. companies "A1" and the unsecured loan notes "A3".

On 1 July 2015, property & casualty insurer Ace Limited (ACE) announced that it would acquire the original Chubb Corporation for $28.3 billion in cash and stock. ACE stated that Chubb's current headquarters in Warren, New Jersey, will have a substantial portion of the headquarters function for the combined company's North American Division. The combined company adopted the Chubb name in January 2016 after the acquisition was completed.