| Lake Superior Reserve
|
| Land Data Assimilation System
|
| Landscape Conservation Cooperative Network
|
| Landscope America
|
| Lane County, Oregon | Emergency Management
|
| Lawrence Livermore National Laboratory
|
| LimnoTech
|
| List of Alaska ShoreZone partners
|
| Long Island Sound Study
|
| Louisiana Department of Transportation and Development
|
| Louisiana Geographic Information Center
|
| Louisiana Office of Community Development
|
| Louisiana Sea Grant
|
| Louisiana State University | Earth Scan Laboratory
|
| Low Impact Development Center
|
| Lowcountry Land Trust
|
| Lower Elwha Klallam Tribe
|
| Lower Kuskokwim School District
|
| Lower Mississippi River Forecast Center
|
| Lummi Nation
|
| Maine Sea Grant
|
| Manchester-by-the-Sea | Department of Public Works
|
| Manilaq Association
|
| Manomet Center for Conservation Sciences
|
| Mapbox
|
