Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Nov 2020.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
83 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
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Who runs it and what they're paid
8 people listed on the 990; $247K paid to officers and key staff.
Martin Wainstein’s $158K as Board Chair/Executive Director is at the 88th percentile of top reported officer pay among 312 $100K–1M science & technology nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 6 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|
| Martin Wainstein | $158,005 | $145,473 | $149,387 | $158,624 | $150,010 |
| Christian Wiesenthal | — | — | — | — | $128,750 |
| Sean Young | $120,328 | $115,843 | $104,106 | — | — |
| Katherine Foster | — | — | — | — | $107,268 |
| Lucas Gloege | — | — | $104,408 | — | — |
| Melissa Hauser | $94,944 | $91,354 | $76,401 | $88,529 | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2Yes
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Builds and shares free online tools to help the planet flourish.
Questions for Open Earth Foundation
Your first name shows with your question. Open Earth Foundation answers here, for everyone.
Know this org? Add your story
Openclimate
Openclimate is an open source and digitally integrated climate accounting system designed to help the world achieve the emission reduction targets set in the paris agreement. Its purpose is to remove friction in climate accounting, by working towards interoperability between different standards, reducing double counting and catalyzing…
Openearth Lab
As a research and deployment climate tech nonprofit, the openearth lab is where innovation across all projects occurs. The lab supports collaboration among existing projects and is where new innovative ideas emerge that will help open earth foundation move the needle in our mission and develop new programs.
Un Climate Change Global Innovation Hub
Openearth collaborates with the unfccc to design and develop the unfccc global innovation hub, or ugih. Launched in glasgow's COP25, the ugih provides a cross-disciplinary community of practice with both a physical and virtual hub to connect stakeholders searching to meet core human needs with best available climate and sustainability…
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2022 990, line by line.
Download 990
| Line | Start FY22 | End FY22 |
|---|---|---|
| Cash and savingsLn 1–2 | $102K | $228K |
| InvestmentsLn 11–13 | $6.0M | $3.0M |
| Land, buildings, equipmentLn 10c | $5K | $12K |
| Total assetsLn 16 | $6.5M | $3.6M |
| LiabilitiesLn 26 | $118K | $280K |
| Net assetsLn 32 | $6.4M | $3.3M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants to domestic organizationsLn 1 | $176K | $176K | ||
| Grants and assistance to foreign recipientsLn 3 | $150K | $150K | ||
| Pay of current officers, directors and key staffLn 5 | $251K | $174K | $44K | $33K |
| Other salaries and wagesLn 7 | $300K | $256K | $34K | $10K |
| Other employee benefitsLn 9 | $8K | $5K | $3K | |
| Payroll taxesLn 10 | $46K | $36K | $7K | $3K |
| Management feesLn 11a | $23K | $23K | ||
| Legal feesLn 11b | $24K | $24K | ||
| Accounting feesLn 11c | $45K | $45K | ||
| Investment management feesLn 11f | $26K | $26K | ||
| Other fees for servicesLn 11g | $28K | $28K | ||
| Advertising and promotionLn 12 | $60K | $56K | $4K | |
| Office expensesLn 13 | $4K | $2K | $2K | $283 |
| Information technologyLn 14 | $53K | $42K | $11K | $23 |
| TravelLn 17 | $68K | $67K | $236 | $558 |
| Conferences, conventions and meetingsLn 19 | $20K | $19K | $264 | $723 |
| Depreciation, depletion and amortizationLn 22 | $2K | $2K | ||
| InsuranceLn 23 | $12K | $12K | ||
| Other expenses (24a–d)Ln 24 | $682K | $662K | $20K | $0 |
| Total functional expensesLn 25 | $2.0M | $1.6M | $253K | $80K |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest | $990K | $1.8M | −$854K | $2.6M | 990 PDF |
| FY2024 | $1.2M | $1.5M | −$273K | $3.4M | 990 PDF |
| FY2023 | $1.1M | $1.5M | −$383K | $3.3M | 990 PDF |
| FY2022 Viewing | −$246K | $2.0M | −$2.2M | $3.3M | 990 PDF |
| FY2021 | $7.6M | $1.1M | $6.5M | $6.4M | 990 PDF |
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Schedules filed Part IV
See the full FY2022 990 (6 parts)
Part I · Summary −$246,091 revenue, 12 lines filed
Part VI · Governance 2 of 4 board members independent, 1 to look at
Part VIII · Statement of revenue −$246,091 across 7 lines filed
Part IX · Statement of functional expenses $1,977,920 across 19 lines filed
Part X · Balance sheet $3,615,693 assets, 12 lines filed
Part XI · Reconciliation of net assets $3,335,392 net assets at year end
Form 990 e-file (XML) FY2022 from the IRS · Classification, formation year and address from the IRS Business Master File
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