| realtor.org | National Association of Realtors |
| crs.com | Council of Residential Specialists |
| communityhousing.org.au | NSW Federation of Housing Associations |
| nahrep.org | National Association of Hispanic Real Estate Professionals |
| wcr.org | Women's Council of Realtors |
| sior.com | Society of Industrial and Office Realtors (SIOR) |
| crb.com | Council of Real Estate Brokerage Managers |
| housingpreservation.org | Institute for Responsible Housing Preservation |
| epra.com | European Real Estate Association |
| apartmentassociation.com | ApartmentAssociation.com |
United States , Pennsylvania , Allentown