Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Feb 1999.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
78 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
10 people listed on the 990; $789K paid to officers and key staff.
Warren Leon’s $192K as Cesa Executive Director is at the 82nd percentile of top reported officer pay among 1851 $1–10M environment 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 · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|
| Lewis Milford Left During Fy22 | — | — | — | $247,154 | — |
| Lewis Milford | — | — | — | — | $230,575 |
| Warren Leon | $192,285 | $193,721 | $194,623 | $190,036 | $185,183 |
| Anthony Vargo | $184,579 | $177,233 | $169,230 | $162,708 | $158,005 |
| Seth Mullendore | $181,252 | $176,783 | $164,423 | $109,433 | $107,491 |
| Robert Sanders | — | — | — | — | $148,031 |
| Todd Olinsky-Paul | $125,458 | $118,028 | $112,879 | $106,863 | $107,718 |
| Maria Blais Costello | $105,599 | $98,711 | $99,119 | $99,237 | — |
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 2No
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Promotes clean energy policies, develops low-carbon technology, and creates financial tools for economic and climate stability.
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Policy
This program includes projects to educate the public and policy experts to move beyond pricing measures such as cap and trade to develop long term, complementary climate stabilization policies that encourage massive technology innovation and deployment to drive the development of new clean energy technologies and markets.
Technology
This programs includes projects to achieve climate stabilization by exploring how to incorporate technology innovation into new strategies, whose aim is to advance clean energy technologies and to stabilize greenhouse emissions.
Finance
This program includes projects that identify new sources of capital, align the interests of the private and public sectors, and develop government and private sector interventions to overcome existing financing gaps to get zero carbon technology investment to scale.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2025 990, line by line.
Download 990
| Line | Start FY25 | End FY25 |
|---|---|---|
| Cash and savingsLn 1–2 | $2.1M | $2.4M |
| Land, buildings, equipmentLn 10c | $22K | $17K |
| Total assetsLn 16 | $2.7M | $2.7M |
| LiabilitiesLn 26 | $775K | $713K |
| Net assetsLn 32 | $2.0M | $2.0M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants to domestic organizationsLn 1 | $140K | $140K | ||
| Grants to domestic individualsLn 2 | $0 | |||
| Grants and assistance to foreign recipientsLn 3 | $0 | |||
| Benefits paid to or for membersLn 4 | $0 | |||
| Pay of current officers, directors and key staffLn 5 | $310K | $185K | $116K | $9K |
| Pay of disqualified personsLn 6 | $0 | |||
| Other salaries and wagesLn 7 | $469K | $339K | $125K | $6K |
| Pension plan contributionsLn 8 | $107K | $72K | $33K | $2K |
| Other employee benefitsLn 9 | $341K | $230K | $105K | $6K |
| Payroll taxesLn 10 | $72K | $49K | $22K | $1K |
| Management feesLn 11a | $0 | |||
| Legal feesLn 11b | $0 | |||
| Accounting feesLn 11c | $0 | |||
| Lobbying feesLn 11d | $0 | |||
| Investment management feesLn 11f | $0 | |||
| Other fees for servicesLn 11g | $661K | $633K | $26K | $2K |
| Advertising and promotionLn 12 | $0 | |||
| Office expensesLn 13 | $37K | $25K | $11K | $1K |
| Information technologyLn 14 | $0 | |||
| RoyaltiesLn 15 | $0 | |||
| OccupancyLn 16 | $18K | $12K | $6K | $266 |
| TravelLn 17 | $17K | $13K | $4K | $77 |
| Travel and entertainment for public officialsLn 18 | $0 | |||
| Conferences, conventions and meetingsLn 19 | $29K | $22K | $6K | $134 |
| InterestLn 20 | $0 | |||
| Payments to affiliatesLn 21 | $0 | |||
| Depreciation, depletion and amortizationLn 22 | $5K | $5K | $625 | $74 |
| InsuranceLn 23 | $7K | $7K | $101 | |
| Other expenses (24a–d)Ln 24 | $12K | $789 | $10K | $869 |
| All other expensesLn 24e | $0 | |||
| Total functional expensesLn 25 | $2.2M | $1.7M | $472K | $29K |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest Viewing | $2.2M | $2.2M | $7K | $2.0M | 990 PDF |
| FY2024 | $1.8M | $1.8M | −$60K | $2.0M | 990 PDF |
| FY2023 | $1.9M | $1.5M | $327K | $2.0M | 990 PDF |
| FY2022 | $1.3M | $1.4M | −$55K | $1.7M | 990 PDF |
| FY2021 | $1.4M | $1.7M | −$310K | $1.8M | 990 PDF |
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Schedules filed Part IV
See the full FY2025 990 (6 parts)
Part I · Summary $2,233,360 revenue, 12 lines filed
Part VI · Governance 5 of 6 board members independent, no flags
Part VIII · Statement of revenue $2,233,360 across 5 lines filed
Part IX · Statement of functional expenses $2,226,536 across 30 lines filed
Part X · Balance sheet $2,685,348 assets, 15 lines filed
Part XI · Reconciliation of net assets $1,972,726 net assets at year end
Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File
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