AmTrust Financial Services, Inc., is a New York City-based multinational property and casualty insurance company. Operating through its subsidiaries, its operations are divided into three segments: Small Commercial Business insurance, Specialty Risk and Extended Warranty insurance, and Specialty Middle-Market Property and Casualty insurance. The company’s main regions of operations are North America, United Kingdom, and mainland Europe. AmTrust is listed on the NASDAQ Global Market under the ticker symbol AFSI and is rated “A” (Excellent) by AM Best Company. Barry Zyskind is the Chief Executive Officer.

AmTrust Financial Services was founded by brothers George Karfunkel and Michael Karfunkel in 1998.

AmTrust began trading on the NASDAQ Global Select Market on November 13, 2006.

In 2016 Barry Zyskind was appointed as Chairman in addition to existing roles as Chief Executive Officer, President and Chairman of Executive Committee.

In December 2014, he was listed by Forbes as the best performing CEO in the Insurance industry.

In 2005 Ronald (Ron) Pipoly was appointed as Chief Financial Officer.

In 2017 Adam Karkowsky was appointed as Chief Financial Officer.

Most of the company’s business is contracted through more than 20 insurance companies and subsidiaries throughout the world. The following are some of their US subsidiaries:

The company's foreign insurance subsidiaries include:

The Small Commercial Business segment of AmTrust provides worker’s compensation to small businesses which operate in low and medium hazard classes. Included in this class are restaurants, retail stores, physicians and other professional offices. They also offer commercial package and other property and casualty insurance products to small businesses.

This segment provides workers’ compensation, general liability, commercial auto liability, excess surplus lines insurance programs and other specialty commercial property and casualty insurance through managing general agents.

This segment is engaged in providing custom designed coverages. Included are accidental damage plans and payment protection plans sold in connection with the sale of consumer and commercial goods in the United States and Europe.

AmTrust Financial Services was ranked number 1,495 on the Forbes list of the 2000 World’s Biggest Public Companies in 2016 with a market capitalization of $4.6 billion.