Environmental Internships and Careers
Washington & Lee University

Air

California Air Resources Board

Conservation

American Rivers
Battenkill Conservancy--New York
California Tahoe Conservancy
Catalina Island Conservancy Intranet--Volunteer Program
Conservation International
Earth Island Institute
Ecologic Development Fund
Golden Gate National Recreation Area (GGNRA)
National Wildlife Federation
New York State Department of Environmental Conservation
Palos Verdes Peninsula Land Conservancy
Student Conservation Association
The Land Conservancy of San Luis Obispo
The Nature Conservancy

Green Volunteers
Oceanic Society Expeditions
Association for the Conservation of the Southern Rainforest

Education

National Environmental Education & Training Foundation
Outward Bound

Energy

Aera Energy LLC
Southface Energy Institute

GIS

ESRI--world's leading provider of GIS software

Law and Policy

AGI Geoscience & Public Policy Internships
Earthjustice Legal Defense Fund
National Parks and Conservation Association (Policy)
Natural Resources Defense Council
Political Economy Research Center (PERC)
The Environmental Law Institute

Marine

American Society of Limnology and Oceanography
California Coastal Commission

Marine Evironmental Research Institute
Marine Internships

Marine Resource Management 
Mid-Atlantic Sea Grant Programs
Ocean US

Parks and Recreation

California State Parks
Golden Gate National Recreation Area (GGNRA)
National Park Service Careers
Yosemite Student Intern Program

Public Interest Groups

Center for Public Environmental Oversight

Environmental Working Group

Florida Conservation Foundation

National Coalition Against the Misuse of Pesticides

The Wilderness Society

PIRG

Policy

Institute for Policy Studies
New America Foundation
United Nations

Skiing

Aspen Skiing Company--Environmental Affairs

Sustainability

Rocky Mountain Institute
Sustainable Communities Leadership Program

Think Tanks

Economic Policy Institute

Foreign Policy in Focus

New America Foundation

Policy Economy Research Center

Reason Public Policy Institute 

Water

California Department of Water Resources
The Land Conservancy of San Luis Obispo--Water Quality

Wildlife

National Wildlife Federation
Patuxent Research Refuge
The Wildlife Society
Vince Shute Wildlife Sanctuary

Writing/Journalism

Political Economy Research Center (PERC)

Other Specific Internships

Earth System Science
National Center for Environmental Decision-making Research
Smithsonian Environmental Research Center
Smithsonian Internship Opportunities