| AtHomeNet Online resource for interaction between residents, boardmembers, committees and property managers of homeowner and condo associations. |
| Community Associations Institute Provides education and resources to America's residential condominium, cooperative, and homeowner associations, and to the professionals and suppliers who serve them. |
| ECHO: Executive Council of Home Owners 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 The N.A.H.C. in the U.S. is a federation of housing cooperatives, individuals, and professionals that work with housing cooperatives. |
| National Board of Certification for Community Association Managers Administers a national certification program, CMCA, that provides a standard of knowledge required for community managers. |
| Neighborhood News Web Provides websites for neighborhood associations and property management companies. |
| Nord Enterprises, Inc. Online system that allows HOAs to build and maintain sites; functions include page creation, event tracking, communication management and document handling. |