Riverstyx Foundation
Invitation OnlySanta Rosa, California · EIN 94-3373712 · Private foundation · Website
Half of its grants to organizations were between $5,000 and $30,000.
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
60% of grants went outside California.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Ligare Inc | Savannah, GA | General Support | $80,000 |
| Clusterbusters Inc | Richmond, VA | Seed Funding Coordinating Research, Education, and Outreach exploring psychedelics for physiological illnesses | $52,000 |
| Johns Hopkins University Developmen | Buffalo, NY | Psilocybin and Alzheimer's Study | $50,000 |
| Stichting Transnational Institute | Amsterdam, NL | Coca Leaf Advocacy Work in the World Health Organization (100k pledge) | $50,000 |
| Netherlands-America Foundation | New York, NY | Xyrem for Cluster Headache Research | $50,000 |
| Fireside Project | San Francisco, CA | General Support | $40,000 |
| Healing Advocacy Fund | Portland, OR | Oregon and Colorado Psilocybin Implementation | $30,000 |
| Alma Institute | Portland, OR | Communities of Color Psilocybin Service Center Development in OR | $25,000 |
| UC Berkeley Center for Psychedelics | Berkeley, CA | Riverstyx Foundation BIPOC Diversity Scholarship | $21,500 |
| International Dark Sky Association | Tuscon, AZ | Protecting Dark Night Skies from Light Pollution | $20,000 |
| McKenna Academy OF NATURAL PHILOSOP | San Rafael, CA | 2025 Coca Leaf Conference | $15,000 |
| Occidental Arts and Ecology Center | Occidental, CA | Water Sustainability Design | $15,000 |
| Usona Institute Inc | Madison, WI | Legal Work Challenging Egregious Ayahuasca Patents | $14,000 |
| chaikuni institute | Iquitos, PE | Supporting Indigenous Shipibo people in protection of the Peruvian Amazon | $13,000 |
| San Francisco Zen Center | New York, NY | Zen Firefighter Retreat | $11,000 |
| Horizon Center Pbc | New York, NY | Psychedelic Conference NY | $10,000 |
| LSU Health Sciences Center | New Orleans, LA | General Support | $10,000 |
| Pamaorama Global | Seattle, WA | Psychedelic Health Equity Initiative | $10,000 |
| Women's Visionary Council | Berkeley, CA | Women's Psychedelic Conference | $7,500 |
| Prision University Project | San Rafael, CA | San Quentin Prison Education | $6,000 |
| Pachamama Alliance | San Francisco, CA | Conservation in the Amazon Rainforest | $5,000 |
| Seattle University Map Program | Seattle, WA | MAP Program Existential-Phenomenological Psychology | $5,000 |
| Center for Action and Contemplation | Albuquerque, NM | General Support | $5,000 |
| Chacruna Institute | San Francisco, CA | Conference Support | $2,500 |
| International Society for Research | Atlanta, GA | 2025 Conference Support | $2,000 |
| Love Serve Remember Foundation | Ojai, CA | General Support | $1,500 |
| coalition for compassionate care ca | Sacramento, CA | Conference Event Sponsorship: Psychedelic Assisted Therapies in Palliative Care | $1,000 |
The return also lists 20 grants to individuals ($648,458). We do not publish the names of individual recipients.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $1,200,458 | 47 |
| 2023 | $2,185,105 | 60 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 14, 2025 - IRS e-file batch, object ID 202503189349103830
- IRS Tax Exempt Organization Search for EIN 94-3373712
- Profile updated Nov 6, 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.