Updated Nov 1, 2026
Private foundations based in San Marcos, California
9 grantmaking foundations headquartered in San Marcos, California, holding $31M in assets. Ranked by grants paid in their latest 990-PF; 0 on this page say they accept applications. For foundations ranked by where their grants went, see local funders.
| Foundation | Grants paid | Median grant | Accepts applications | Assets |
|---|---|---|---|---|
| Erickson Foundationsince 2016 | $220K9 grants · 2025 | $10K | Preselected only | $4.4M |
| Hedwig S Johannsen Trsince 2020 | $202K8 grants · 2025 | $10K | Preselected only | $2.2M |
| New Hope Charitable Foundationsince 2002 | $101K2 grants · 2024 | $51K | Preselected only | $5.9M |
| Hall Foundationsince 2020 | $101K2 grants · 2024 | $51K | Preselected only | $2.5M |
| The New Jerusalem Foundationsince 2008 | $43K4 grants · 2024 | $10K | Preselected only | $2.4M |
| David T and Dorris E Staples Foundationsince 1998 | — | — | Preselected only | $5.1M |
| Emma Mary Deland Foundationsince 1999 | — | — | Not stated | $3.9M |
| Evans Foundation for Molecularmedicinesince 2009 | — | — | Preselected only | $2.3M |
| Green Oak Ranchsince 1998 | — | — | Preselected only | $2.0M |
Sources: IRS Business Master File (assets), ProPublica Nonprofit Explorer and IRS 990-PF e-file (grants paid, application policy). "Accepts applications" reflects the foundation's own Part XV checkbox.
Open grant programs in California
All 161| Deadline | Grant | Funder | Award ceiling |
|---|---|---|---|
| Nov 22 days | Local Highway Safety Improvement Program (HSIP)CaliforniaDepartment of Transportation | Department of Transportation | Up to $10M |
| Nov 22 days | Emergency Medical Services (EMS) Grant for Program Year 2026-27 (PY 26-27)CaliforniaEmployment Development Department | Employment Development Department | Up to $1.3M |
| Nov 22 days | 2026 CalAgPlate Grant ProgramCaliforniaCA Department of Food and Agriculture | CA Department of Food and Agriculture | Up to $196K |
| Nov 22 days | The Recreational Trails Program (RTP) – R27CaliforniaDepartment of Parks and Recreation | Department of Parks and Recreation | Not listed |
| Nov 33 days | 2026 California Nutrition Incentive ProgramCaliforniaCA Department of Food and Agriculture | CA Department of Food and Agriculture | Up to $13M |
| Nov 44 days | Youth Community Access Grant Program (Round 4)CaliforniaCA Natural Resources Agency | CA Natural Resources Agency | Up to $300K |
Common questions
How many private foundations are based in San Marcos, California?
Our directory lists 9 private grantmaking foundations in San Marcos, California with at least $1 million in assets, holding a combined $31M. The data comes from the IRS Exempt Organizations Business Master File and Form 990-PF.
How do I get a grant from a private foundation?
Start with foundations that already fund organizations like yours nearby. Read the grantee list on each profile, check whether the foundation accepts applications (it says so on its 990-PF), and lead with a short letter of inquiry. Many family foundations fund only organizations they already know; an introduction through a shared grantee or board member works better than a cold proposal.
Can you help us approach foundations?
Yes. Our grant writers research foundation prospects, write letters of inquiry, and build a foundation fundraising plan. Request a free consultation.