From public IRS filings
MARIN OPEN SPACE TRUST
SAN RAFAEL, CA · Environment
Mission
Raise funds to acquire, restore, and protect open space and park lands in Marin County, California, and negotiate acquisitions of lands and conservation easements
Financials (IRS Form 990)
Total revenue
$1.4M
Total expenses
$1.6M
Total assets
$646K
Program expense ratio
96%
Source: IRS Form 990, tax year 2024.
Who funds MARIN OPEN SPACE TRUST
$2.4M in foundation grants on record from 15 funders — matched from IRS 990 grant line items. Some matches may be approximate.
| Funder | Total given | Grants |
|---|---|---|
| Fidelity Investments Charitable Gift Fund | $1M | 3 |
| Trust for Public Land | $345K | 1 |
| Rsf Social Finance | $275K | 2 |
| Marin Community Foundation | $192K | 2 |
| Nature Conservancy | $160K | 2 |
| C A Wall Family Foundation | $120K | 1 |
| Donor Advised Charitable Giving | $83K | 3 |
| Network for Good | $79K | 3 |
| Rockridge Foundation Co Norman B Livermore Iii | $30K | 1 |
| American Online Giving Foundation | $12K | 2 |
Leadership
William Long — Treasurer (Principal officer)
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