Formed in 1928, the Water Environment Federation (WEF) is a not-for-profit technical and educational organization of more than 35,000 individual members and 81 affiliated Member Associations representing an additional 50,000 water quality professionals throughout the world. WEF and its Member Associations proudly work to achieve our mission of preserving and enhancing the global water environment.

Founded in 1908, the Water and Wastewater Equipment Manufacturers' Association (WWEMA) represents the interests of companies that manufacture products sold to the potable water and wastewater treatment industries.

Founded in 1881, the American Water Works Association is the authoritative resource on safe water, providing knowledge, information and advocacy to improve the quality and supply of water in North America and beyond. AWWA advances public health, safety and welfare by uniting the efforts of the full spectrum of the water community.

Water for People helps people in developing countries improve their quality of life by supporting the development of locally sustainable drinking water resources, sanitation facilities, and health and hygiene education programs.

The National Rural Water Association is a non-profit federation of State Rural Water Associations. Our mission is to provide support services to our State Associations who have more than 26 water and wastewater systems as members.

Water Online is a source of information for the water and wastewater treatment community used by engineers, operations staff, consultants and all involved in the water industry.