Property and Casualty Carriers Trade Associations

American Association of State Compensation Insurance Funds (AASCIF)

U.S. association of state-chartered workers’ compensation insurers and Canadian provincial workers’ compensation boards; facilitates best‑practice sharing and advocacy for public workers’ comp carriers. 26 U.S. state funds + 8 Canadian boards.

https://www.aascif.org/ Membership: 34

American Property Casualty Insurance Association (APCIA)

U.S. P&C trade association formed from the AIA–PCI merger; advocates on federal and state issues and says its members write nearly 60% of the U.S. P&C market.

https://www.apci.org/ Membership: 1,000

ACORD (Association for Cooperative Operations Research and Development)

Industry‑owned global standards body for insurance data exchange and forms; engages over 36,000 participating organizations worldwide across carriers, brokers, reinsurers and vendors.

https://www.acord.org/ Membership: 36,000

Association of Bermuda Insurers & Reinsurers (ABIR)

Bermuda’s leading association for international P&C (re)insurers; policy advocacy and market research. Record high 34 member carriers as of April 7, 2025.

https://www.abir.bm/ Membership: 34

American Association of Insurance Services (AAIS)

Advisory/standards organization providing policy forms, rating and statistical services to P&C carriers in the U.S.; serves 700+ insurers.

https://www.aais.com/ Membership: 700

Captive Insurance Companies Association (CICA)

Domicile‑neutral global captive insurance association; education, advocacy and networking for captive owners, managers, advisors and service providers. Member portal indicates 679 members.

https://www.cicaworld.com/ Membership: 679

American Institute of Marine Underwriters (AIMU)

National association for marine (ocean) insurers in the U.S.; education, policy and technical leadership for ocean marine underwriters. (Membership count not publicly posted.)

https://www.aimu.org/ Membership: 0

National Association of Mutual Insurance Companies (NAMIC)

U.S.–Canada mutual insurer trade association; advocacy and education for mutual P&C carriers. Nearly 1,500 member companies.

https://www.namic.org/ Membership: 1,500

Inland Marine Underwriters Association (IMUA)

U.S. inland marine carrier association; provides education, research and advocacy for inland marine lines. Represents 50 insurance company members and 35 associate members.

https://www.imua.org/ Membership: 85

International Underwriting Association of London (IUA)

London company‑market association for (re)insurers writing international and wholesale business; technical, regulatory and market advocacy. Represents 79 member companies (March 20, 2025).

https://www.iua.co.uk/ Membership: 79

Lloyd’s Market Association (LMA)

Association for Lloyd’s managing agents and members’ agents; market policy, model wordings and education. All 55 managing agencies are members.

https://www.lmalloyds.com/ Membership: 55

National Risk Retention Association (NRRA)

U.S. national association for risk retention and purchasing groups and their service providers; advocacy on the Liability Risk Retention Act and RRG/RPG issues. Directory data show 105 company members and 44 individual members.

https://www.riskretention.org/ Membership: 149

Reinsurance Association of America (RAA)

U.S. reinsurance trade association representing P&C reinsurers and intermediaries; advocacy, education and market statistics. (Member count not publicly consolidated.)

https://www.reinsurance.org/ Membership: 0

Surety & Fidelity Association of America (SFAA)

U.S. surety and fidelity trade association; regulatory advocacy, data/filings, education, and small‑contractor bonding programs. More than 425 member companies write 98% of U.S. surety/fidelity premium.

https://surety.org/ Membership: 425

Vermont Captive Insurance Association (VCIA)

Largest captive insurance association globally; Vermont‑focused advocacy and education but with international reach. Over 400 member organizations.

https://vcia.com/ Membership: 400

Wholesale & Specialty Insurance Association (WSIA)

U.S. wholesale, specialty and E&S insurance association (formed from AAMGA and NAPSLO merger); advocacy, education and talent for E&S distribution and markets. Approximately 750 member firms.

https://www.wsia.org/ Membership: 750

Insurance Bureau of Canada (IBC)

Canada’s national P&C industry association representing private home, auto and business insurers; advocacy and industry resources. (Industry has 196 private P&C insurers; specific IBC member count not posted.)

https://www.ibc.ca/ Membership: 0

Insurance Council of Australia (ICA)

Representative body for Australia’s general insurers and reinsurers; policy development, data and member engagement. Members represent roughly 85–89% of private‑sector general insurance premium. (Specific member count not posted.)

https://insurancecouncil.com.au/ Membership: 0

General Insurance Association of Japan (GIAJ)

Japan’s national non‑life (general) insurance association; policy, consumer information and market data for P&C carriers in Japan. (Publicly posted member count varies by year; confirm directly for latest.)

https://www.sonpo.or.jp/en/ Membership: 0

National Crop Insurance Services (NCIS)

U.S. trade group for the Federal crop insurance program’s Approved Insurance Providers and allied firms; education, actuarial tools (e.g., IMAP) and training (CAPP) supporting P&C crop insurers. (Specific member count not posted publicly.)

https://www.ag-risk.org/ Membership: 0