Open Earth Foundation
The Open Earth Foundation is dedicated to creating and deploying open source digital systems and solutions to mitigate climate challenges and support a thriving planet.
Open Earth Foundation at a glance
- Total assets
- $2,634,213
- -22.5% vs 2024
- Revenue (2025)
- $989,875
- -18.9% vs 2024
- Net investment income (2025)
- $51,970
- +444.8% vs 2024
- Expenses (2025)
- $1,844,310
- +23.5% vs 2024
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Open Earth Foundation funds
How this funder distributes its grants
Grant Size Distribution
2 grants across all recorded years
The most common grant size was under $50K: 1 grant of 2 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2022, annual grant giving ranged from $20K (2021) to $164K (2022). In 2022 it made 1 grant totaling $164K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| University of North Carolina Chapel Hill Data-Driven Lab Chapel Hill, NC | Funding for development of the independent climate accounting network for reimagining multilateralism and the digitally-enabled independent stocktake of global climate actions. | $164,175 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $2,634,213 | $989,875 | $1,844,310 | — | — | $51,970 |
| 2024 | $3,397,521 | $1,221,138 | $1,493,967 | — | — | $9,539 |
| 2023 | $3,282,146 | $1,076,620 | $1,459,827 | — | — | $-123,095 |
| 2022 | $3,615,693 | $-246,091 | $1,977,920 | $164,175 | 1 | $-576,810 |
| 2021 | $6,524,924 | $7,641,796 | $1,129,036 | $20,000 | 1 | $153,523 |
About Open Earth Foundation
Based on IRS filings
Open Earth Foundation is a public charity focused on Science & Technology, based in Playa Del Rey, CA. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $2.6M in total assets. Net investment income was $52K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Open Earth Foundation is led by Martin Wainstein, Board Chair & Executive Director on every filing since 2021; 3 of 7 officers listed in 2025 are compensated.
Officers on the 2025 filing
Martin Wainstein
Board Chair & Executive Director
On filings since 2021
40 hrs/week
$150K (2021) → $158K (2025)
Melissa Hauser
Director of People & Culture
Secretary → Secretary, Director of People & Culture, 2024
Secretary, Director of People & Culture → Director of People & Culture, 2025
On filings since 2022
40 hrs/week
$89K (2022) → $95K (2025)
Sean Young
Director of Operations
On filings since 2023
40 hrs/week
$104K (2023) → $120K (2025)
Angel Hsu
Board Member
Director → Board Member, 2022
On filings since 2021
0.3 hrs/week
No compensation reported
Bill Melton
Board Member
On filings since 2022
0.3 hrs/week
No compensation reported
Joaquin Van Peborgh
Treasurer
Vice Chair → Treasurer, 2025
On filings since 2022
1 hr/week
No compensation reported
Jehan Chu
Board Member
On filings since 2023
0.3 hrs/week
No compensation reported
Former officers (5)
- Former: Yihana Von Ritter (2021–2023) — Treasurer
- Former: Lucas Gloege (2023) — Climate Data Engineer
- Former: John Clippinger (2021–2022) — Director
- Former: Katherine Foster (2021–2022) — Secretary
- Former: Christian Wiesenthal (2021) — Vice Chair
Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $158K, to Martin Wainstein (Board Chair/Executive Director). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Open Earth Foundation
How large is Open Earth Foundation?
Open Earth Foundation reported $2.6M in total assets on its 2025 IRS Form 990. Its revenue that year was $990K.
What is Open Earth Foundation?
Open Earth Foundation is a public charity focused on Science & Technology, based in Playa Del Rey, CA. It holds $2.6M in total assets as of 2025.
Where does Open Earth Foundation operate?
Open Earth Foundation has awarded grants in North Carolina.
What is Open Earth Foundation's EIN?
Open Earth Foundation's EIN (Employer Identification Number) is 85-3261449. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(4)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2021 (received by the IRS October 13, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS July 21, 2023)
- Added Form 990 for fiscal year 2025 (received by the IRS April 24, 2026)
- IRS filings on file for fiscal years 2021–2024
Explore Open Grants
Browse active grant opportunities in Open Earth Foundation's focus areas in our free grants database
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Figures come from Open Earth Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
Open Earth Foundation down — hundreds of funders to go?