NYMAGIC, INC., through its subsidiaries, operates as an insurance holding company that specializes in underwriting ocean marine, inland marine/fire, nonmarine liability, and aircraft insurance. Ocean marine insurance covers hull and machinery, cargo, hull and machinery war risk, cargo war risk insurance, protection and indemnity, charters’ legal liability, marine contractor's liability, shoreline marine liability exposures, maritime employers liability, petroleum and bulk liquid cargo, and onshore and offshore oil and gas exploration and production exposures. Inland marine/fire insurance covers contractor’s equipment, motor truck cargo, transit floaters, and commercial property. Nonmarine liability insurance includes coverage for manufacturers and contractors risks, building owners and commercial stores, products liability exposures, employment practices liability, surety, excess workers compensation, miscellaneous errors, and omissions/professional liabilities, and other casualty excess and surplus line risks. Aircraft insurance provides insurance primarily for commercial aircraft, as well as includes hull and engine insurance, liability insurance, and products liability insurance. The company was formed in 1964 and is based in New York City.