The California Marine Sanctuary Foundation is a nonprofit organization dedicated to advancing the understanding and protection of the Monterey Bay and Channel Islands National Marine Sanctuaries, as well as California's statewide network of marine protected areas. With an operating budget of $4.3 million and total revenue of $4.5 million for the 2024 filing year, the foundation relies on a diverse array of funders, none of which contribute 50% or more of its revenue. More information about their initiatives and programs can be found on their website at californiamsf.org.