funder-graph › Recipients
Who funds International Sustainable Energy Foundation
EIN 87-2509491 · Austin, TX · NTEE C99
International Sustainable Energy Foundation of Austin, TX (EIN 87-2509491) was named as a grant recipient by 6 funders in 15 grants paid totaling $42,287,614 in tax years 2022–2024, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$42,287,614
15 grants paid
Funders
6
distinct grantmakers
Tax years
2022–2024
as reported by funders
Funders
| Funder | State | Match | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Climateworks Foundation 26-2303250 | CA | A | 3 | $19,134,614 | 2024 |
| Sequoia Climate Foundation 85-4095972 | CA | B | 6 | $12,730,000 | 2024 |
| Climate Imperative Foundation 84-5024713 | CA | A | 3 | $8,323,000 | 2024 |
| Windward Fund 47-3522162 | DC | A | 1 | $1,100,000 | 2024 |
| Rf Catalytic Capital Inc 85-2150251 | NY | A | 1 | $500,000 | 2024 |
| The David and Lucile Packard Foundation 94-2278431 | CA | B | 1 | $500,000 | 2023 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Grants
The 15 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2024 | Climateworks Foundation | International Sustainable Energy Foundation Austin, TX | A | $6,148,938 | paid | TO SUPPORT THE GLOBAL TRANSITION TO CLEAN TRANSPORTATION | 202512959349301466 |
| 2024 | Sequoia Climate Foundation | International Sustainable Energy Foundation Austin, TX | B | $4,070,000 | paid | TO PROVIDE GENERAL OPERATING SUPPORT | 202542869349100134 |
| 2024 | Climate Imperative Foundation | International Sustainable Energy Foundation (isef) Austin, TX | A | $1,700,000 | paid | ENVIRONMENTAL PROTECTION | 202543179349301634 |
| 2024 | Windward Fund | International Sustainable Energy Foundation Austin, TX | A | $1,100,000 | paid | ENVIRONMENTAL PROGRAMS | 202513159349305886 |
| 2024 | Rf Catalytic Capital Inc | International Sustainable Energy Foundation Asuting, TX | A | $500,000 | paid | TO SUPPORT CAPACITY BUILDING | 202513119349303756 |
| 2024 | Sequoia Climate Foundation | International Sustainable Energy Foundation Austin, TX | B | $500,000 | paid | TO SUPPORT ANALYSIS AND EDUCATION AROUND SUSTAINABLE AGRICULTURE AND LAND USE | 202542869349100134 |
| 2023 | Climateworks Foundation | International Sustainable Energy Foundation Austin, TX | A | $7,204,238 | paid | PROJECT SUPPORT, PROGRAM SUPPORT | 202423029349302122 |
| 2023 | Sequoia Climate Foundation | International Sustainable Energy Foundation Austin, TX | B | $4,000,000 | paid | TO PROVIDE GENERAL OPERATING SUPPORT | 202422899349101117 |
| 2023 | Climate Imperative Foundation | International Sustainable Energy Foundation Austin, TX | A | $3,223,000 | paid | To support research, analysis and education about clean and healthy transportation policies | 202443189349309969 |
| 2023 | Sequoia Climate Foundation | International Sustainable Energy Foundation Austin, TX | B | $500,000 | paid | TO SUPPORT THE SCALING UP OF SUSTAINABLE AGRICULTURE AND LAND USE | 202422899349101117 |
| 2023 | The David and Lucile Packard Foundation | International Sustainable Energy Foundation Austin, TX | B | $500,000 | paid | Environment and Science | 202433199349102603 |
| 2023 | Sequoia Climate Foundation | International Sustainable Energy Foundation Austin, TX | B | $460,000 | paid | TO SUPPORT INTEGRATING ROOFTOP SOLAR IN THE HEALTHCARE SECTOR | 202422899349101117 |
| 2022 | Climateworks Foundation | International Sustainable Energy Foundation Austin, TX | A | $5,781,438 | paid | PROGRAM SUPPORT | 202323039349302107 |
| 2022 | Climate Imperative Foundation | International Sustainable Energy Foundation San Francisco, CA | A | $3,400,000 | paid | TO SUPPORT RESEARCH, EDUCATION, AND OUTREACH ABOUT CLEAN TRANSPORTATION POLICIES | 202313199349309541 |
| 2022 | Sequoia Climate Foundation | International Sustainable Energy Foundation Austin, TX | B | $3,200,000 | paid | TO DEVELOP NET-ZERO ROADMAPS | 202342879349100304 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.