| IPF - Property Derivatives Interest Group | IPFG | Intl |
| International Real Estate Institute | IREI | Intl |
| Institute of Real Estate Management | IREM | US |
| International Real Estate Society | IRES | Intl |
| Real Estate Sharing and Analysis Center | ISAC | US |
| International Society of Hospitality Consultants | ISHC | US |
| Joint Center For Housing Studies | JCHS | US |
| Latin American Real Estate Society | LARES | South Am. |
| Mortgage Bankers Association | MBA | US |
| Manitoba Real Estate Association | MREA | Can |
| National Apartment Association | NAA | US |
| National Association of Home Builders | NAHB | US |
| National Association of Housing and Redevelopment Officials | NAHRO | US |
| National Association of Industrial and Office Properties | NAIOP | US |
| National Association of Real Estate Brokers | NAREB | US |
| National Real Estate Investors Association | NAREIA | US |
| National Association of Real Estate Investment Managers | NAREIM | US |
| National Association of Real Estate Investment Trust | NAREIT | US |
| National Association of Residential Property Managers | NARPM | US |
| National Council of Real Estate Investment Fiduciaries | NCREIF | US |
| National Associate of Real Estate Investment Fiduciaries | NCREIF | US |
| Commercial Real Estate Womens Network | NCREW | US |
| National Multi Housing Council | NMHC | US |
| National Trust for Historic Preservation | NTHP | US |
| Ontario Real Estate Association | OREA | Can |
| Property Council of Australia | OZCOM | Austrailian/ NZ |
| Property Institute of New Zealand | PINZA | Austrailian/ NZ |
| Pension Fund Real Estate Association | PREA | US |
| Pacific Rim Real Estate Society | PRRES | Pac Rim |
| Real Property Association of Canada | RealPac | Intl |
| Real Estate Board of New York | REBNY | US |
| Real Estate Educators Association | REEA | US |
| Real Estate Institute of Canada | REIC | Can |
| REITA | REITA | Intl |
| Real Estate Roundtable | RER | US |
| Real Estate Research Institute | RERI | US |
| Royal Institue of Chartered Surveyors | RICS | Intl |
| Real Sustainable | RS | US |
| Society of Industrial And Office Realtors | SIOR | Intl |
| SIOR Canada | SIOR Canada | Can |
| Toronto Commercial Real Estate Women | TCREW | Can |
| Toronto Real Estate Board Commercial Division | TREB | Can |
| Urban Development Institute | UDI Calgary | Can |
| UDI Pacific Region | UDI British Columbia | Can |
| Urban Land Institute | ULI | US |
| Urban Redevelopment Authority | URA | Pac Rim |
