Insurance Companies Code Order Insurance Companies Current Listing: Numerical Order or Alphabetical Order Company Company Name Code 462 Sentry Insurance a Mutual Company 463 Greenwich Insurance Company 465 Harco National Insurance Company 467 Hartford Casualty Insurance Company 468 Hartford Fire Insurance Company 474 Holyoke Mutual Insurance Company in Salem 486 Harleysville Preferred Insurance Company 503 Insurance Company of the State of Pennsylvania 504 XL Specialty Insurance Company 509 Sentry Select Insurance Company 512 Liberty Mutual Fire Insurance Company 513 Liberty Insurance Corporation 514 Liberty Mutual Insurance Company 518 LM Insurance Corporation 529 Continental Insurance Company, The 530 Vermont Mutual Insurance Company 531 Vermont Mutual Insurance Company (Pilgrim) 559 Maryland Casualty Company 561 Markel American Insurance Company 567 Massachusetts Bay Insurance Company 578 Merchants Preferred Insurance Company 582 Merchants Mutual Insurance Company 585 Metropolitan Property and Casualty Insurance Company 595 Mount Vernon Fire Insurance Company Appendix A-0 A:6http://www.commauto.com/aboutcar/codenumbers.aspx?Sort=CoNo http://www.commauto.com/aboutcar/codenumbers.aspx?Sort=CoName