| ECHO: Executive Council of Home Owners https://www.echo-ca.org/ Nonprofit membership corporation dedicated to assisting California homeowners associations. Provides help to homeowners associations on many fronts including finances, legal issues, insurance, maintenance, and management. | |
| National Association of Housing Cooperatives https://coophousing.org/ The N.A.H.C. in the U.S. is a federation of housing cooperatives, individuals, and professionals that work with housing cooperatives. | |
