Society for the Protection of Underground Networks
Funding Overview
From IRS Form 990 filings · 2024–2025
Total received
$6.0M
Foundation funders
6
Grants recorded
8
Years covered
2024–2025
Who funds Society for the Protection of Underground Networks?
Society for the Protection of Underground Networks is funded by 6 grantmakers, led by Sustainable Markets Foundation ($4.4M), The Jeremy and Hannelore Grantham Environmental Trust ($1.0M), Rivian Foundation ($300K). In total, IRS Form 990 filings record $6.0M in grants to Society for the Protection of Underground Networks between 2024–2025.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| Sustainable Markets Foundation | $4,391,879 | 2 | 2024–2025 |
| The Jeremy and Hannelore Grantham Environmental Trust | $1,000,000 | 1 | 2024 |
| Rivian Foundation | $300,000 | 2 | 2024–2025 |
| Novo Foundation | $150,000 | 1 | 2024 |
| Greater Washington Community Foundation | $100,000 | 1 | 2025 |
| Mighty Arrow Family Foundation | $50,000 | 1 | 2024 |
Funding over time
Grant dollars and counts received per year
From 2024 to 2025, annual grant giving ranged from $1.3M (2025) to $4.7M (2024). In 2025 it made 3 grants totaling $1.3M.
What grants has Society for the Protection of Underground Networks received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | Sustainable Markets Foundation | Environmental Conservation | $1,024,379 |
| 2025 | Rivian Foundation | TO SUPPORT THE STUDY OF FUNGI IN US DESERTS AND ALASKA TO IMPROVE CONSERVATION AND BOOST SOIL HEALTH | $150,000 |
| 2025 | Greater Washington Community Foundation | GENERAL SUPPORT | $100,000 |
| 2024 | Sustainable Markets Foundation | ENVIRONMENTAL CONSERVATION | $3,367,500 |
| 2024 | The Jeremy and Hannelore Grantham Environmental Trust | GRANTS TO PROTECT THE ENVIRONMENT | $1,000,000 |
| 2024 | Rivian Foundation | TO SUPPORT THE STUDY OF FUNGI IN US DESERTS AND ALASKA TO IMPROVE CONSERVATION AND BOOST SOIL HEALTH | $150,000 |
| 2024 | Novo Foundation | GENERAL SUPPORT | $150,000 |
| 2024 | Mighty Arrow Family Foundation | GENERAL SUPPORT | $50,000 |
Frequently Asked Questions
Who funds Society for the Protection of Underground Networks?
Society for the Protection of Underground Networks is funded by 6 grantmakers, led by Sustainable Markets Foundation ($4.4M), The Jeremy and Hannelore Grantham Environmental Trust ($1.0M), Rivian Foundation ($300K). In total, IRS Form 990 filings record $6.0M in grants to Society for the Protection of Underground Networks between 2024–2025.
Who is Society for the Protection of Underground Networks's largest funder?
Sustainable Markets Foundation is the largest recorded funder of Society for the Protection of Underground Networks, with $4.4M across 2 grants (2024–2025).
How much grant funding has Society for the Protection of Underground Networks received?
IRS 990 filings record $6.0M in grants to Society for the Protection of Underground Networks across 8 grants from 6 funders between 2024–2025. Filings are published on a delay, so recent grants may not appear yet.
Looking for funders like Society for the Protection of Underground Networks's?
Grantable's AI matches your organization against 200,000+ grantmakers — including every funder on this page — using their real giving history.
You, clicking into all 6 funders
~42 min
at ~7 min per funder profile
Your agents, the same 6
under a minute
every profile evaluated and scored, with reasoning
Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
Looking for funders like Society for the Protection of Underground Networks's?