The New York Building Congress (NYBC) is an association that brings together employers, labor unions and federations, government agencies, engineers, architects, finaniers, suppiers and others engaged in the construction industry in New York City. Founded in 1921, it now has around 400 affiliated organizations, with a combined membership of over 250,000 skilled workers and professionals. The Congress engages in educational and lobbying activities, hosts public programs, and disseminates information of concern to the industry.

Shortly after the First World War, elements of the American building industry attempted to organize a national building congress. Although the planned national organization was never very active, the impulse was continued by city-wide groups. In New York City, the 47-member NYBC was organized in early 1921. Originally, membership was limited to organizations (labor unions, businesses, government agencies, etc.), but it was soon opened to individuals, and its early presidents were noted architects. On this broad basis, the NYBC united labor and employers, as well as members of the multitude of professions involved in all aspects of the building industry. One of the NYBC's key roles in its early years was to mediate between labor and management.

The NYBC issued a code of ethics for the building industry during its inaugural year, and remained actively involved in setting industry standards until the 1960s. The organization concerned itself with specific building practices; it commissioned research, published reports, lobbied, and spoke out on legislation and regulations pertaining to the industry. The NYBC took a leading role in the revision of the New York City Building Code in the 1960s and also lobbied on more general issues, such as the New York City charter revision of the late 1980s, the Westway project, and a variety of other development proposals for the city.

Over the years the organizational structure of the NYBC varied dramatically, as can be seen in the multitude of committees, subcommittees, councils, and boards listed in the inventory below. Nevertheless, some functions have remained consistent. From the beginning, the NYBC has regularly sponsored research, held conferences, presented awards to leaders in the industry, and hosted dinners and luncheons that have been addressed by some of New York's, and the nation's, most distinguished individuals.

Following the long presidencies of John J. Collins and Louis J. Coletti, the NYBC has been led by Richard T. Anderson since 1994. During this time, the Congress has frequently addressed legislative, regulatory, urban development, and political issues crucial to the industry. A recent Congress initiative was the establishment of the New York Building Foundation (NYBF), which undertakes industry research and philanthropic activities.