- American Collectors Insurance
- Andover Companies
- Chubb
- CNA
- Encompass
- Farmers of Salem
- Foremost
- Guard
- Hagerty
- Hanover
- Hartford
- LIG Ins.
- MAPFRE
- Mercer Group
- Mercury
- MetLife
- Narragansett Bay
- National General
- NJ Skylands
- Penn Natl.
- Plymouth Rock Assurance
- Preferred Mutual
- Progressive
- Pure
- Selective
- Stillwater Ins. Group
- The Philadelphia Contributionship
- Tower Cos.
- Travelers
- Zurich
- Andover Companies
- Berkshire Hathaway GUARD
- Chubb
- CNA
- Cumberland Mutual
- Encompass
- Farmers of Salem
- Foremost
- Franklin Mutual
- Great Bay Insurance
- Hartford
- Kingstone
- Liberty Mutual
- Mercury
- MetLife
- Narragansett Bay
- National General
- Nationwide
- NJ Skylands
- Norfolk & Dedham
- Progressive
- Pure
- Selective
- Stillwater Ins. Group
- The Philadelphia Contributionship
- Travelers
- Wright Flood