Hong Kong:

https://www.hkiac.org/

Italy:

https://www.adrcenterglobal.com

United States – American Arbitration Association

https://www.adr.org/

United States – Cornell Law School – Alternative Dispute Resolution

https://www.law.cornell.edu/wex/alternative_dispute_resolution

United States – Federal Communications Commission (FCC) – ADR Policies and Procedures

https://www.fcc.gov/alternative-dispute-resolution-adr-policies-and-procedures

United States – Interagency Alternative Dispute Resolution working group

https://www.adr.gov/index.html

United States – New York State Unified Court System – Alternative Dispute Resolution

http://ww2.nycourts.gov/ip/adr/index.shtml

United States – US District Court, Northern District of California – Alternative Dispute Resolution

https://www.cand.uscourts.gov/adr

United States – US Equal Employment Opportunity Commission

https://www.eeoc.gov/federal/fed_employees/adr.cfm