The Lakeside Foundation is a California-based private foundation. It was founded in 1956.
The organization contributes mostly to educational and health related non-profits. In addition to those charitable contributions, the organization donates to a handful of center-right advocacy causes.
The Lakeside Foundation funds many organizations. The majority of these organizations are related to educational, healthcare, and cultural organizations.
But the foundation also supports some center-right activist organizations and think tanks. Among the groups supported are the American Enterprise Institute, Federalist Society, Hoover Institution, Pacific Legal Foundation, and the National Rifle Association Foundation. 
The foundation is also transferring many of its assets to the Bellevue Foundation. 
According to the 2015 Form 990, the foundation spent $7.3 million. It also pledged to donate $47.8 million to the Bellevue Foundation. It had $98.1 million in assets before its pledge to Bellevue.