International Sustainable Energy Foundation
Funding Overview
From IRS Form 990 filings · 2022–2024
Total received
$60.4M
Foundation funders
8
Grants recorded
23
Years covered
2022–2024
Who funds International Sustainable Energy Foundation?
International Sustainable Energy Foundation is funded by 8 grantmakers, led by Climateworks Foundation ($19.1M), The William & Flora Hewlett Foundation ($15.0M), Sequoia Climate Foundation ($12.7M). In total, IRS Form 990 filings record $60.4M in grants to International Sustainable Energy Foundation between 2022–2024.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| Climateworks Foundation | $19,134,614 | 3 | 2022–2024 |
| The William & Flora Hewlett Foundation | $15,000,000 | 5 | 2022–2024 |
| Sequoia Climate Foundation | $12,730,000 | 6 | 2022–2024 |
| Climate Imperative Foundation | $8,323,000 | 3 | 2022–2024 |
| The Bloomberg Family Foundation Inc | $2,400,000 | 2 | 2022–2023 |
| The David and Lucile Packard Foundation | $1,250,000 | 2 | 2022–2023 |
| Windward Fund | $1,100,000 | 1 | 2024 |
| RF Catalytic Capital Inc | $500,000 | 1 | 2024 |
Funding over time
Grant dollars and counts received per year
From 2022 to 2024, annual grant giving ranged from $18.0M (2024) to $23.1M (2023). In 2024 it made 7 grants totaling $18.0M.
What grants has International Sustainable Energy Foundation received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2024 | Climateworks Foundation | TO SUPPORT THE GLOBAL TRANSITION TO CLEAN TRANSPORTATION | $6,148,938 |
| 2024 | Sequoia Climate Foundation | TO PROVIDE GENERAL OPERATING SUPPORT | $4,070,000 |
| 2024 | The William & Flora Hewlett Foundation | FOR GENERAL OPERATING SUPPORT | $4,000,000 |
| 2024 | Climate Imperative Foundation | ENVIRONMENTAL PROTECTION | $1,700,000 |
| 2024 | Windward Fund | ENVIRONMENTAL PROGRAMS | $1,100,000 |
| 2024 | RF Catalytic Capital Inc | TO SUPPORT CAPACITY BUILDING | $500,000 |
| 2024 | Sequoia Climate Foundation | TO SUPPORT ANALYSIS AND EDUCATION AROUND SUSTAINABLE AGRICULTURE AND LAND USE | $500,000 |
| 2023 | Climateworks Foundation | PROJECT SUPPORT, PROGRAM SUPPORT | $7,204,238 |
| 2023 | Sequoia Climate Foundation | TO PROVIDE GENERAL OPERATING SUPPORT | $4,000,000 |
| 2023 | Climate Imperative Foundation | To support research, analysis and education about clean and healthy transportation policies | $3,223,000 |
| 2023 | The William & Flora Hewlett Foundation | FOR GENERAL OPERATING SUPPORT | $3,000,000 |
| 2023 | The William & Flora Hewlett Foundation | FOR GENERAL OPERATING SUPPORT | $3,000,000 |
| 2023 | The Bloomberg Family Foundation Inc | ACCELERATE TRANSITION TO CLEAN ENERGY | $1,200,000 |
| 2023 | Sequoia Climate Foundation | TO SUPPORT THE SCALING UP OF SUSTAINABLE AGRICULTURE AND LAND USE | $500,000 |
| 2023 | The David and Lucile Packard Foundation | Environment and Science | $500,000 |
| 2023 | Sequoia Climate Foundation | TO SUPPORT INTEGRATING ROOFTOP SOLAR IN THE HEALTHCARE SECTOR | $460,000 |
| 2022 | Climateworks Foundation | PROGRAM SUPPORT | $5,781,438 |
| 2022 | The William & Flora Hewlett Foundation | FOR GENERAL OPERATING SUPPORT | $4,500,000 |
| 2022 | Climate Imperative Foundation | TO SUPPORT RESEARCH, EDUCATION, AND OUTREACH ABOUT CLEAN TRANSPORTATION POLICIES | $3,400,000 |
| 2022 | Sequoia Climate Foundation | TO DEVELOP NET-ZERO ROADMAPS | $3,200,000 |
| 2022 | The Bloomberg Family Foundation Inc | ACCELERATE TRANSITION TO CLEAN ENERGY | $1,200,000 |
| 2022 | The David and Lucile Packard Foundation | CONSERVATION AND SCIENCE | $750,000 |
| 2022 | The William & Flora Hewlett Foundation | FOR GENERAL OPERATING SUPPORT | $500,000 |
Frequently Asked Questions
Who funds International Sustainable Energy Foundation?
International Sustainable Energy Foundation is funded by 8 grantmakers, led by Climateworks Foundation ($19.1M), The William & Flora Hewlett Foundation ($15.0M), Sequoia Climate Foundation ($12.7M). In total, IRS Form 990 filings record $60.4M in grants to International Sustainable Energy Foundation between 2022–2024.
Who is International Sustainable Energy Foundation's largest funder?
Climateworks Foundation is the largest recorded funder of International Sustainable Energy Foundation, with $19.1M across 3 grants (2022–2024).
How much grant funding has International Sustainable Energy Foundation received?
IRS 990 filings record $60.4M in grants to International Sustainable Energy Foundation across 23 grants from 8 funders between 2022–2024. Filings are published on a delay, so recent grants may not appear yet.
Looking for funders like International Sustainable Energy Foundation's?
Grantable's AI matches your organization against 200,000+ grantmakers — including every funder on this page — using their real giving history.
You, clicking into all 8 funders
~56 min
at ~7 min per funder profile
Your agents, the same 8
under a minute
every profile evaluated and scored, with reasoning
Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
Looking for funders like International Sustainable Energy Foundation's?