The California League of Conservation Voters Education Fund (CLCV-EF) is a left-of-center environmentalist organization founded in 1996. The Fund works by engaging in political advocacy efforts and voter registration initiatives to support left-of-center causes. 
The CLCV-EF is strongly associated with the California League of Conservation Voters. While CLCV is an advocacy organization that can publicly endorse candidates and CLCV-EF is a charitable organization which cannot do so, the two organizations share office space, board members, and even paid employees. 
CLCV-EF was founded in 1996 to support CLCV’s political advocacy work.  The CLCV-EF’s cornerstone project is its voter outreach program, Green California.  CLCV-EF also spends a significant amount lobbying on behalf of legislation.  Green California and legislative lobbying expenses accounted for over half of CLCV-EF’s expenditures in 2018.  CLCV-EF spent an additional $99,063 on “community outreach” that year. 
Aside from its lobbying and voter engagement efforts, CLCV-EF has conducted extensive polling on environmental and political views in California.  CLCV-EF has been especially active in polling Latino communities in California, arguing that the polls will enable environmentalist legislation to be more targeted. 
Nancy Sutley sits as the president and chair of CLCV-EF.  In 2009, she was appointed by the Obama administration as Chair of the Council on Environmental Quality, a post she held until 2013.  In 2014, Sutley was appointed chief sustainability and economic development officer for the Los Angeles Department of Water and Power. 
Sean Arian is the vice chair of the board at CLCV-EF.  He is concurrently vice president of innovation and emerging technologies for the Los Angeles Area Chamber of Commerce.  Arian previously worked as an advisor on economic development to former Los Angeles Mayor Antonio Villaraigosa (D).  He is married to Los Angeles City Councilman Mike Bonin. 
The CLCV Education Fund is incorporated as a charity and can accept tax-deductible donations, in contract to the CLCV, which is incorporated as an advocacy organization.   The CLCV-EF is thereby more restricted in its political advocacy activity than CLCV itself.  Despite these regulatory differences, CLCV and CLCV-EF retain a close working relationship, sharing offices, board members, and employees between the two organizations. 
Between 2015 and 2018, the CLCV-EF received $215,000 in donations from the Energy Foundation, a “pass-through” organization that receives donations from left-of-center donors and distributes them to left-of-center advocacy organizations.