This trade association represents U.S. banks, and the web site has a section on the mortgage industry. There are mortgage specific training and events, publications, surveys, and other resources provided.

The web site includes a directory of AIA architects. The AIA publishes a Consensus Construction Forecast.

The American Real Estate Society is a research and educational trade organization whose members are from academia as well as the real estate industry. The objectives of the ARES include research and education. They have six real estate journals, an extensive newsletter, a special topic monograph series, and an annual meeting.

ASHA represents the interests of more than 500 companies involved in the finance, development and operation of housing for seniors including independent living, assisted living, memory care, and continuing care communities. ASHA provides legislative and regulatory advocacy, research, educational programs, and networking opportunities.

BOMA advocates for sustainability incentives, tax laws, and other legislation in the interest of building owners and managers. The Association provides measurement standards, and contributes to the development of building codes. It provides continuing professional development opportunities. BOMA's publications include BOMA Magazine, the Experience Exchange Report (EER), and the BOMA Method for the Measurement of Buildings. The EER was first published in 1920, and provides information on how to better manage and operate buildings. These annuals are available as bound volumes at the Library of Congress under TX980 .N33

CREFC is a trade association that is dedicated exclusively to the commercial real estate finance industry, and to promoting strong and liquid debt markets. Member firms include private equity firms, servicers and rating agencies, loan and bond investors, and securitized lenders. The Council's members plays a role in financing industrial and warehouse properties, office buildings, hotels, rental facilities, and multifamily housing.

Design build is a method where the project design and construction services are provided by one entity. This site provides general information, best practices, and statistics. It includes standard contracts, books, and manuals of practice.

GWA is the connection-based resource for shared space operators, workplace strategists, real estate investors and service providers to network, and obtain current information on the co-working industry.

IREM is an international organization that advances the profession of real estate management. It is an affiliate of the National Association of REALTORS® that provides credentials, courses and publications

InterNACHI is an association for home inspectors, which provides its members with training, education, certification and licensing and supports business growth.

The Modular Home Builders Association is a national organization that serves home builders and manufacturers, and works to improve construction productivity and efficiency. The site includes resources that allow individuals to find modular builders.

The MBA is a trade association representing all aspects of the real estate finance industry, with a membership base that includes underwriters, originators, services, and mortgage companies. The MBA publishes the National Delinquency Survey (NDS), and it is the most recognized source for residential mortgage delinquency and foreclosure rates. The Association offers education, training, and information resources to mortgage professionals.

The NAA is a trade association for apartment communities, owners, and suppliers. The National Apartment Association Education Institute (NAAEI) provides educational courses and certificate programs for professionals in the apartment industry. Publications include “Units Magazine” and industry economic data which includes vacancy rates, apartment stock data, metropolitan area apartment activity, and new apartment construction. The NAA site includes a page on Fair Housing, providing a Fact Sheet, a White Paper, and information about protected classes.

NAAHL brings together banks, nonprofits, and other private lenders and investors in affordable housing and neighborhood revitalization to share best practices and advocate for supportive public policies.

The NAHB is a trade association representing home builders, remodelers, manufacturing, building material suppliers, and the mortgage finance industry. It does advocacy work in the areas of mortgage finance, sustainability, and codes. It provides information on housing starts. The Association provides educational seminars, courses, datasets, and an annual convention. NAHB produces a Multifamily Production Index, a Multifamily Vacancy Index.and NAHB publishes free and subscription-based housing and market data on HousingEconomics.com.

Housing cooperatives are organizations where residents own the building as a group and each owns a share of the property, rather than their unit. Residents form a shared corporation that handles the management of the building. Limited-equity cooperatives limit the sale and purchase price of the shares to retain affordability. Most limited-equity co-ops only open membership to low and moderate income residents. NAHC has a number of publications, an annual conference, and advocates with government on items like green rewards incentives for multifamily housing.

NAREIM is an association of real estate investment managers interested in operational and strategic issues concerning investment in office, retail, multi-family, industrial and hotels. The Association provides programs, platforms, and tools to assist in benchmarking, networking, and education.

NARIET represents real estate investment trusts (REITs) and publicly traded real estate companies with an interest in capital markets and real estate. The web site provides educational information, data, as well as information on REIT assets and funds.

The National Association of REALTORS® provides members who are residential and commercial real estate brokers, salespersons, appraisers, and others engaged in the real estate industry with educational opportunities and resources to enhance their professional skills. This site provides housing statistics and research reports on market data, commercial, international, home buying and selling. Publications include reports on international activity in U.S. real estate. This site provides links by state to local realtors associations. The NAR provides certifications and governs the Multiple Listing Services (MLS).

The National Association of Residential Property Managers (NARPM®) is a trade organization for the residential property management industry. The Association provides professional designation and certificates, educational programs, and advocacy.

Provides information on workforce development to recruit youth to train for the remodeling industry. Administers company accreditation and individual certification.

This non-profit organization was established in 1931 with the goal of "ensuring safe, decent and affordable housing for all Americans." The Center for Housing Policy, CHC's research affiliate, conducts research into housing affordability, housing demand, and inclusive communities. They provide an online research library of publications, as well as research tools.

This national advocacy organization seeks to educate lawmakers and the public about the need for affordable housing, with a goal of preserving existing federally assisted homes and housing resources, expanding the supply of low income housing, and establishing housing stability as the primary purpose of federal low income housing. The NLIHC focuses its research and policy analysis on the needs of extremely low-income people.

The NMHC is an industry group focused on the apartment industry including ownership, development, management financing, and community development. This website includes links to statistics, market trends and research.

The Real Estate Research Institute (RERI) is a non-profit organization that was incorporated in 1987 to stimulate research on real estate investment performance and market fundamentals in private equity real estate (REITs).

SIOR is a leading international professional commercial and industrial real estate association, and provides commercial real estate education focused on the industrial and office arenas.

The site contains a membership directory of 12,000+ companies, nonprofits, educational institutions, state & local governments, professional organizations, and trade organizations. There is a directory of LEED projects, and a directory of staff members. There is a Resource Library, publications, and educational information.