Private Sector

Industry & Nonprofit
Agriculture
Energy companies
Land owners and developers
Mining
Nonprofit organizations
Recreation companies (ski, golf, marinas)
Timber corporations
Utility companies
Waste management companies

Native American Tribes

Public Sector

Federal Departments & Agencies
Aviation agencies
Energy agencies
Interagency organizations
Land management agencies
Military agencies
Transportation agencies
Water resource agencies

Planning & Local Government
Air quality districts
City and county planning departments
Parks and recreation departments and districts
Public works departments
Redevelopment agencies
School districts
Special districts

State, Regional, County &City Agencies
Airports
Flood control agencies
Forest management agencies
Hazardous waste facilities
Port authorities
Public transit (bus lines, light rail, ferry systems) agencies
Railroads
Sanitary landfills
Transportation agencies
Utility districts
Water and wastewater agencies