California · Nonprofit
Climate Action Reserve
Climate Action Reserve (California) receives grants from 18 organizations whose IRS filings report $1,015,781 to it, the largest being THE WILLIAM & FLORA HEWLETT FOUNDATION ($690,000). 6 of them have funded it in more than one year.
- Revenue FY2025
- $5.8M
- Funders on record
- 18
- Grants received
- $1.0M
- Net assets
- $2.7M
What Climate Action Reserve does
Mission
The Climate Action Reserve develops and implements trusted market-based programs to advance climate action for people and planet. A pioneer in carbon accounting, the Reserve promotes and fosters the reduction of greenhouse gas (GHG) emissions through credible market-based policies and solutions. As a high-quality carbon credit registry for voluntary and compliance carbon markets, the Reserve establishes rigorous standards involving multi-sector stakeholder workgroup development and local engagement and issues carbon credits in a transparent and publicly available system. The Reserve also supports compliance carbon markets in California, Washington and internationally.
As stated on its FY2025 Form 990.
Programs
The Reserve's carbon credit programs establish rigorous carbon accounting standards for the issuance of high-quality carbon credits which represent real, additional, verifiable, and permanent greenhouse gas emission reductions. Projects registered with the Reserve also deliver environmental and community co-benefits. The Reserve issues carbon credits to projects that report under one of its approved carbon crediting protocols across a range of sectors. In addition, the Reserve issues Registry Offset Credits for compliance use under California and Washington's Cap-and-Invest programs.
$3,545,962 spent$4,199,513 earned by the program72% of program spendingThe North American Carbon World (NACW) is a leading industry conference for carbon market and climate professionals. NACW provides attendees with valuable insights into voluntary and compliance market trends and policy developments. The conference facilitates engagement among carbon markets professionals to strengthen and scale global carbon markets. NACW offers presentations by keynote speakers, panels, and networking opportunities. Over its history, NACW has featured numerous keynote addresses from distinguished climate and policy leaders.
$848,110 spent$1,079,665 earned by the program17% of program spendingThe Reserve continues to expand its works internationally by developing new carbon crediting protocols in Latin America and by continuing to implement and support its existing international protocols in Latin America, Canada, and China. These efforts include refining and updating protocols, providing technical assistance, and working with account holders to advance high-quality program delivery. Additionally, the Reserve participated in speaking engagements, conferences, and meetings abroad to share technical expertise, engage with international stakeholders, and to support the development of high-integrity carbon markets.
$507,721 spent$459,424 earned by the program10% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $4,901,793.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $31M to $3.1M (−90%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2019 0% · 2020 0% · 2021 9%. Grants only. Government contracts and fees sit inside program revenue.
0% of Climate Action Reserve’s revenue is contributions — more earned-revenue than three-quarters of its peers (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Board chair
Linda Adams
Board Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base held at 2 funders, grant income fell $160k → $1k.
5 of 18 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 4% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of Climate Action Reserve’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
Climate Action Reserve leans on a few funders — its largest provides 68% of grant income and the top three 85%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
31% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund Climate Action Reserve.
Largest funder’s share by year: 2017 88% · 2018 88% · 2019 87% · 2020 39% · 2021 59% · 2022 72% · 2023 90% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
15% of Climate Action Reserve's funders are still giving 3 years after their first grant; 33% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
92% of Climate Action Reserve's grant income comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $46k arriving through sponsors registered in 4 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
Climate Action Reserve's revenue grew 40% between 2017 and 2025.
this organization peer median middle 50% of peers· 1,074 environment nonprofits $1M–$10M, FY2025
Government funding Climate Action Reserve receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $113k on record.
- Department of Agriculture$113k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like Climate Action Reserve
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
79% of spending goes to programs.
Governance
Public support
74%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Climate Action Reserve: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Climate Action Reserve?
- Climate Action Reserve (California) receives grants from 18 organizations whose IRS filings report $1,015,781 to it, the largest being THE WILLIAM & FLORA HEWLETT FOUNDATION ($690,000). 6 of them have funded it in more than one year.
- How many funders does Climate Action Reserve have?
- IRS filings report 18 organizations giving $1,015,781 in grants to Climate Action Reserve, 6 of which have funded it in more than one year.
- Who is the largest funder of Climate Action Reserve?
- THE WILLIAM & FLORA HEWLETT FOUNDATION is the largest funder on record, with $690,000 in grants. The full list of funders is on this page.
- How can an organization like Climate Action Reserve find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Climate Action Reserve →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 18 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing