• 21st Century Insurance markets and underwrites passenger automobile liability, physical damage, and personal excess liability insurance
• AARP Automobile Insurance Program from The Hartford. Free online insurance quotes for AARP members
• A. Central Insurance Company established in 2001, they are a wholly owned subsidiary of New York Central Mutual. They cover NY autos only
• ACUITY Formerly Heritage Mutual regional carrier in Sheboygan, WI. Offering all types of personal and commercial property and casualty insurance
• Adriatic Insurance Louisiana commercial coverage trucking, cargo, taxicabs and limos, and special automobile risks.
• AIG American International Group's primary auto market for agents and brokers
• A. I. M. Mutual Mass work comp carrier
• AI Pacific American International Pacific Insurance Company - AIG company
• AIS Auto Insurance Specialists now has over 25 locations in California.
• AIU American International Underwriters - One of the AIG insurance companies
• Alfa Insurance Offering church, recreational watercraft, auto, homeowner, personal umbrella, life, health, business and flood insurance. Multi-line life insurer in AL, GA, and MS
• Alliance Insurance Companies Great regional carrier in McPherson, KS
• Alliance Mutual Insurance Company Mutual insurance company in North Carolina
• Allianz English version of their main site
• Allied Insurance Insurance in 22 central states, now part of Nationwide
• Allmerica (P&C) Big, Worcester, Mass-based L&H and P&C conglomerate
• Allstate offers auto insurance coverage options, car insurance quotes, and cost saving assistance
• American Agents Insurance Company Private passenger non-standard insurance in NY
• American Commerce Insurance Company AAA-branded insurance in many states
• American Empire Group Writes through wholesalers
• American Family Insurance Midwest PC and Life/health company
• American Farm Bureau Parent organization for the various state Farm Bureaus
• American Fidelity L H, P C from this company, soon be called American Mercury
• American Financial Group, Inc. Parent to Great American, Republic Indemnity, others
• American Home Insurance Company One of the AIG insurance companies
• American Independent Insurance Company Carrier in Plymouth Meeting, PA
• American Merchants Casualty Company Part of the Motorists Mutual/American Hardware group
• American National Property Casualty ANPAC - Large company in Springfield, MO
• American Reliable Insurance Company Program business through MGAs
• American Service Insurance Company Non-standard auto insurance in Illinois
• American Skyline Insurance Company New personal lines carrier, in Baltimore, MD
• American Southern Insurance Company Part of Atlantic American Group
• American Sterling Insurance Company Personal property lines in several states
• American Underwriters Insurance Company Auto insurance in Arkansas
• Amerisure Operating in the midwest and south, formerly known as Michigan Mutual
• Amex Assurance American Express' property/casualty company
• Amica Auto, home and life insurance from this fine Rhode Island company
• Amstar Insurance Company Auto insurance in Florida
• Aon Collector Car insures collector cars, antique cars, street rods, motorcycles, and exotic cars
• Arbella New England personal commercial lines carrier
• Argonaut Group Parent of Argonaut
• Arch Capital Group Property, Casualty and Specialty insurance for businesses and professional firms nationwide
• Armed Forces Insurance Offers flood, boats, motorcycles, motor homes, antique and classic automobiles, high value homes, jewelry, art and antique coverage.
• Associated Mutual Personal and commercial lines since 1913 Woodbridge, NY
• Atlanta Casualty Company Incorporated in Georgia in 1972, they are now owned by Pennsylvania Company. Offering private passenger auto insurance through over 11,000 agencies in 36 states insuring more than 250,000 drivers Great site from this personal auto writer
• Atlantic Mutual Companies Property, casualty and marine insurance, since 1842
• Austin Mutual Insurance Group Personal lines, some commercial, operates in 11 states
• Auto-Owners Over 3 million policies via 30,000 independent agents in over 5,000 agencies Auto insurance and a lot more, from the 'No-Problem' people
• Avomark OCG's Internet-direct-writing auto subsidiary, writing auto in NY, OR UT
• AXA Group Parent to AXA Insurance, Equitable, others
• Badger Mutual Insurance Company Serving WI, IL, MI, and MN, from Milwaukee
• Barnstable County Mutual Insurance Company Yarmouth Port, MA carrier
• Bay Colony Insurance Company One of GE's Colonial Penn insurance companies
• Bayside Casualty Insurance Company One of GE's Colonial Penn insurance companies
• Beacon Insurance Group TX carrier, also writes in AR
• Blue Ridge Insurance Regional northeastern carrier, part of Winterthur Group
• Bremen Farmers' Mutual Kansas-only carrier
• Brethren Mutual Offering Maryland, Virginia and Pennsylvania drivers a tiered personal auto program
• Briar Creek Mutual Insurance Company Personal small commercial lines, PA only
• Buckeye State Mutual Insurance Company Serving rural mid-America from Piqua, Ohio
• California Casualty Pioneered the concept of group auto
• California Insurance Group Insuring CA NV, from beautiful Monterey, CA
• Cameron Mutual Insuring Missouri - and Arkansas - from Cameron, MO
• Carolina Casualty One of the W. R. Berkley companies
• Casco Indemnity 'New England's Auto Specialists'
• Casualty Reciprocal Exchange One of the Dodson Group carriers
• Celina Insurance Midwest carrier, in Celina, OH
• Central Insurance Companies aka Central Mutual
• Centre Group Subsidiary of Zurich, based in Delaware
• Century-National Insurance Company California carrier
• Charter Insurance Companies Specializing in non-standard auto coverages
• Cincinnati Equitable Insurance Company Oldest carrier west of the Alleghenies
• Cincinnati Insurance Companies Large, agent-owned company
• Citizens Insurance Company Big writer in Michigan, part of Allmerica
• Civil Service Employees CSE - Carrier for public employees others, in the west
• Clarendon Insurance Program business through MGAs
• Coast National Insurance Company Auto insurance for Californians
• Colorado Casualty Regional company, now owned by Liberty Mutual
• Colorado Farm Bureau Mutual Insurance Company Colorado only, for over 50 years
• Colorado Western Insurance Company Writes through wholesalers, in many states
• Columbia Insurance Group Operating from Columbia, MO, since the 1800’s
• Commerce Industry Insurance Company One of the AIG insurance companies
• Commerce Insurance Company Largest writer of auto insurance in Massachusetts
• Commonwealth Risk Reinsurance, alternative risk financing
• Companion Property & Casualty Group Regional writer, subsidiary of BlueCross/BlueShield
• Connecticut Life Casualty Personal lines direct writer, in Connecticut
• Consumers Insurance Agent-owned carrier, big in auto risks
• Continental Western Insurance Company Largest of the W. R. Berkley regional companies
• Co-operative Insurance Companies Serving People from Middlebury, VT
• Coregis Former CF subsidiary, now part of G. E. Capital
• Cornerstone National Insurance Company Personal auto insurance in MO, AR, OK
• Cotton States Insurance Serving 10 southeastern states from their home office in Atlanta, GA
• Country Financial LH and PC, formerly known as Country Companies
• Crum Forster National carrier, part of Fairfax Financial
• Cumberland Group Personal and commercial lines for New Jersey only
• CUNA Mutual Credit Union insurance, and much more
• Dairyland Insurance Company Motorcycle non-standard auto, from this Sentry company
• Deerbrook Insurance Company Non-standard auto subsidiary of Allstate
• DEPARTMENTS OF INSURANCE
• Direct General provides auto insurance direct at neighborhood offices throughout the southeastern United States. Based in Nashville, TN
• Discover Re Sharp, innovative division of St. Paul
• Donegal Insurance Group Writing personal, commercial and farm insurance in PA, MD, DE, OH, VA through 800 agents. A (Excellent) rating from the A. M. Best Company

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