US Environmental Protection Agency (USEPA)

Ecological Society of America

Society for Ecological Restoration (SER)

National Registry of Environmental Professsionals

North American Association for Environmental Education (NAAEE)

Interdisciplinary Environmental Association

National Association of Local Government Environmental Professionals (U.S.) (NALGEP)
Brings together local environmental officials to network and share information on innovative environmental practices, conduct environmental policy projects, promote environmental training and education, and communicate the view of local environmental officials on national environmental issues

Public Employees for Environmental Responsibility (PEER)
Works with and on behalf of public employees to safeguard the nation’s natural resources.

Metropolitan Washington Environmental Professionals
Promotes contacts among interested persons in the Washington, DC metropolitan area. Membership includes scientists, lawyers, activists, regulators, consultants, and others.

Louisiana Environmental Professionals Association – (LEPA)

Florida Association of Envrionmental Professionals
Providing information and networking to Florida’s environmental professionals.

Environmental Professionals Organization
California – Multi-disciplinary educational forum for environmental professionals.

Southern California Chinese American Environmental Protection Association

Northwest Association for Environmental Professionals (Washington & Oregon)

Native American Government Environmental Agencies in the United States

Society of Environmental Toxicology and Chemistry (SETAC)

Society of Wetland Scientists (SWS)

Soil and Water Conservation Society (SWCS)

Women’s Environmental Council (WEC)