Darwin Professional Underwriters provides non-medical E&O, D&O products and medical malpractice insurance for public and private companies, health care risks and a broad range of professional classes. In the non-medical area, Darwin looks for difficult-to-place professional liability clients in the legal field or in the insurance-related classes, as well as programs developed in conjunction with program administrators. Coverage is issued on Platte River Insurance Company, Capitol Specialty Insurance Corporation, Capitol Indemnity Corporation, and Darwin National Assurance Company paper. The company is a subsidiary of Alleghany Insurance Holdings, whose parent company, Alleghany Corporation, is publicly traded on the New York Stock Exchange. DPU is headquartered in Farmington, Conn.