English Courtyard Developments Ltd.
- Specializing in the design, construction and management of luxury retirement housing. Includes properties, management, company profile. Based in London with locations throughout England.
- http://www.englishcourtyard.co.uk

Brecht Associates, Inc.
- Consulting firm specializing in market feasibility and strategic planning for all types of senior housing. Includes services, team profile, and calendar. Based in Philadelphia, PA.
- http://www.brechtassociates.com

Active Adult Communities
- Directory of adult retirement communities in Florida, the Carolinas, Georgia, Tennessee, Colorado, Virginia, Utah and Texas.
- http://www.active-adult-communities.us

Front Porch
- Not-for-profit senior living communities. Includes services, news, careers and foundations. Offers affordable adult housing in California, Louisiana, and Florida.
- http://www.frontporch.net

The Senior Living Corporation
- Information on consulting services for retirement housing developers, senior adults and their families.
- http://www.seniorlivinginc.com/

Paradigm Senior Living
- Professional management, marketing, and consulting firm serving the senior housing and assisted living industries.
- http://www.psliving.com

Jean Moreau and Associates
- Retirement housing consultants specializing in market feasibility and financial feasibility.
- http://www.jeanmoreau.com/

Cordia Senior Living
- Manager of senior living residences throughout the US that provides custom care solutions and innovative programming for independent seniors as well as those needing assisted living services.
- http://cordiaseniorliving.com

SeniorOutlook.com
- National database of senior living options, information on choosing a community, financial and estate planning.
- http://www.senioroutlook.com/

SeniorResidences.com
- Online retirement residence guide featuring communities in Canada and the US.
- http://senioresidences.com

Mature Living Choices
- Free online guide to active senior communities covering more than 20 states.
- http://seniorselections.com