| Company Groups - MA PPA (3/14/2011) |
| Allstate Insurance Company |
| American Automobile Insurance Company (Fireman's Fund) |
| American International Insurance Company (AIG) |
| Amica Mutual Insurance Company |
| Arbella Mutual Insurance Company |
| Bankers Standard Insurance Company (ACE) |
| Citizens Insurance Company of America (Hanover) |
| Commerce Insurance Company |
| Electric Insurance Company |
| Encompass Insurance Company of Massachusetts |
| Farm Family Casualty Insurance Company |
| GEICO |
| Green Mountain Insurance Company |
| Harleysville Insurance Company |
| IDS Property Casualty Insurance Company( Ameriprise) |
| Liberty Mutual Insurance Company |
| Massachusetts Homeland Insurance Company (OneBeacon) |
| Metropolitan Property and Casualty Ins. Company |
| NGM Insurance Company |
| Norfolk & Dedham Mutual Fire Insurance Company |
| Occidental Insurance Company |
| Peerless Insurance |
| Plymouth Rock Assurance Corporation |
| Praetorian Insurance Company |
| Preferred Mutual Insurance Company |
| Premier Insurance Company of Massachusetts |
| Progressive Insurance Company |
| Quincy Mutual Fire Insurance Company |
| Safety Insurance Company |
| State Farm Mutual Automobile Insurance Company |
| United Services Automobile Association (USAA) |
| Vermont Mutual Insurance Company |
