The Society for Marketing Professional Services  represents more than 4,700 marketing professionals who work in the A/E/C industry.

Sales & Marketing Executives-International, Inc. is the worldwide association of sales and marketing management.  SME members include CEOs, marketing managers, sales managers, and top level executives who contribute to the advancement of sales and marketing management.

Business Marketing Association (BMA) is a network of 3,000 Business Marketing Professionals from across the country and around the world.

The Direct Marketing Association is the oldest and largest trade association for users and suppliers in the direct, database and interactive marketing field.

Government Purchaising and Management Associations

--National Contract Management Association (NCMA) is a source for professional development for acquisition personnel worldwide.

--The National Association of State Purchasing Officials (NASPO) is a professional organization made up of the directors of the central purchasing offices in each of the 50 states, the District of Columbia and the territories of the United States.  Their website provides a wealth of information for anyone interested in learning more about doing business with the 50 State Governments.

--California Association of Public Purchasing Officers (CAPPO) is a professional organization for public purchasing officers in California.

--FAPPO - Florida Association of Public Purchasing Officers, Inc. is a professional organization for public purchasing officers in Florida.

--The National Institute of Governmental Purchasing and it's local chapters provide purchasing officials with education, research, technical assistance and networking opportunities in public purchasing. 

--The Chartered Institute of Purchasing and Supply (CIPS) is an international organization, based in the UK, serving the purchasing and supply profession.

--National Association for State Information System (NASIRE) includes information resource executives and managers from the 50 states, six US territories, and the District of Columbia.

--National Association of Counties NACo, represents county governments; more than 1,800 of the US's 3066 counties are members. This site is full of valuable information on cities towns including census information and statistics.  They also provide links to official county Web Sites.

--The Public Housing Authorities Directors Association (PHADA) is a growing association representing over 1,700 Housing Authority Directors and Administrators throughout the United States.  This site also posts RFP notices for member agencies. 

--The Government Finance Officers Association represents public-sector finance professionals throughout the United States and Canada.  They also have an annual conference where they give businesses the opportunity to make a pitch to their members.

International Federation of Purchasing and Materials Management (IFPMM) is the union of more than 40 National Purchasing Associations world wide.

Higher Education Cooperatives and Purchasing Associations

--Educational & Institutional Cooperative Service, Inc. is a not-for-profit buying cooperative which provides goods and services to its members.  The cooperative is owned by its membership of nearly 2000 tax-exempt colleges, universities, prep schools, hospitals, medical research institutions and hospital purchasing organizations.

--The Society for College and University Planning (SCUP) is focused on the promotion, advancement, and application of effective planning in higher education.  It publishes RFP opportunities for education planners and consultants for various colleges and universities. 

--The National Association of Educational Buyers, Inc provides information to those with purchasing responsibility.  It advocates the development and practice of effective and ethical procurement principles and techniques in higher education. 

K-12 Education

American Association of School Administrators

Industry Associations

The American Road & Transportation Builders Association is the only national organization that exclusively represents the collective interests of all sectors of the U.S. transportation construction industry before the White House, Congress, federal agencies, media and the public.