The Holocene Foundation
Invitation OnlySeattle, Washington · EIN 82-3905017 · Private foundation
Grants paid (2024)$60.2M
Organizations funded28
Typical grant$100,000
Total assets$0
Half of its grants to organizations were between $25,000 and $250,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
39% of grants went outside Washington.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Chabot Family Daf - Vanguard | Warwick, RI | General operating funds | $56,403,675 |
| Conservation Lands Foundation | Durango, CO | General operating funds | $400,000 |
| Earthjustice | Seattle, WA | General operating funds | $400,000 |
| The Nature Conservancy | Seattle, WA | General operating funds | $350,000 |
| Climate Solutions | Seattle, WA | General operating funds | $300,000 |
| The Conservation Alliance | Bend, OR | General operating funds | $300,000 |
| Conservation Northwest | Seattle, WA | General operating funds | $250,000 |
| The Mountaineers | Seattle, WA | General operating funds | $250,000 |
| Defenders of Wildlife | Washington, DC | General operating funds | $200,000 |
| Trust for Public Land | Seattle, WA | General operating funds | $200,000 |
| Environmental Defense Fund | Washington, DC | General operating funds | $150,000 |
| Nrdc | New York, NY | General operating funds | $150,000 |
| Outdoor Alliance | Washington, DC | General operating funds | $150,000 |
| Friends of Waterfront Seattle | Seattle, WA | General operating funds | $100,000 |
| Salmon-Safe Inc | Portland, OR | General operating funds | $100,000 |
| Daughters for Earth | New York, NY | General operating funds | $100,000 |
| The Mountains to Sound Greenway Trust | Seattle, WA | General operating funds | $50,000 |
| The Wilderness Society | Seattle, WA | General operating funds | $50,000 |
| Washington Environmental Council | Seattle, WA | General operating funds | $50,000 |
| Washington Water Trust | Seattle, WA | General operating funds | $50,000 |
| Earthgen | Seattle, WA | General operating funds | $25,000 |
| Islandwood | Bainbridge Island, WA | General operating funds | $25,000 |
| League of Conservation Voters Education Fund | Washington, DC | General operating funds | $25,000 |
| Rachel's Network Inc | Washington, DC | General operating funds | $25,000 |
| Spark Northwest | Seattle, WA | General operating funds | $25,000 |
| Washington Trails Association | Seattle, WA | General operating funds | $25,000 |
| Washington Wildlife & Recreation Coalition | Seattle, WA | General operating funds | $25,000 |
| Social Venture Partners Seattle | Seattle, WA | General operating funds | $6,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $60,184,675 | 28 |
| 2023 | $3,581,000 | 27 |
Sources
- IRS Form 990-PF, tax year 2024, filed Oct 15, 2025 - IRS e-file batch, object ID 202512889349100026
- IRS Tax Exempt Organization Search for EIN 82-3905017
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.