- Ace Insurance Group
- Admiral Ins. Co.
- Allied Insurance
- American National Ins. Co.
- ANPAC
- Argonaut Insurance Company
- Attorneys Liability Protection Society
- AutoOne Insurance Company
- Boats U.S.
- CNA
- Colony Ins. Co.
- Great American Ins. Co.
- Harbor Insurance Group
- Harleysville Ins. Co.
- Minnesota Lawyers Mutual Ins. Co.
- Pat Salmon & Sons Truck Corporation
- Riverport Insurance Group
- Selective Ins. Co.
- Southern Insurance Co.
- Underwriters at Lloyds, London
- Western General Ins. Co.
- Wesport Insurance Corp.
- Westport Insurance Corporation
