The California Land Stewardship Institute (CLSI) is a charitable (501 c3) non-profit organization dedicated to planning and implementing environmental stewardship, restoration and enhancement programs and projects including scientific studies, promotion of beneficial stewardship practices, and resource conservation activities on private and public lands and waterways. CLSI also supports and supplies marketing and promotion on behalf of certified members of the Fish Friendly Farming Environmental Certification program.

CLSI operates the Fish Friendly Farming Certification Program in Sonoma, Mendocino, Napa, Solano, Humboldt, Amador, Placer, El Dorado, and Santa Clara counties. Our staff is made up of environmental scientists.

CLSI works with hundreds of landowners and managers, local districts, other non-profit organizations, grant and regulatory agencies, and a number of private consultants to design and implement environmental projects.