Who funds Sierra Club Foundation?

Oakland, California · EIN 94-6069890 · NTEE C300 · 501(c)(3)

347 private foundations paid Sierra Club Foundation 657 grants on IRS Form 990-PF returns for tax year 2022 or later, $31M in all. Its IRS activity code (NTEE C300) places it in environment.

All years on file, including returns before 2022.

Foundations that funded it

The 200 largest by total, of 348 on file.

Largest grants since 2022

Largest first. The purpose is what the foundation wrote on its return, for the tax year shown.

• Skyline Foundation · 2023 - Sierra club 2030 campaign$4,000,000
• John D and Catherine T Macarthur Foundation · 2023 - to support the Beyond Coal campaign$4,000,000
• Skyline Foundation · 2024 - Energy project$2,500,000
• Sequoia Climate Foundation · 2022 - To support clean energy for all$1,500,000
• The Brunckhorst Foundation · 2024 - General Purpose unless otherwise stated$1,160,000
• The Brunckhorst Foundation · 2023 - General Purpose unless otherwise stated$1,160,000
• Freedom Together Foundation · 2024 - Sierra club's healthy communities campaign$1,000,000
• Freedom Together Foundation · 2023 - Sierra club's healthy communities campaign$1,000,000
• Freedom Together Foundation · 2022 - Sierra club's healthy communities campaign$1,000,000
• The Susan and Ford Schumann Foundation · 2025 - General funds$816,987
• Martin Foundation · 2023 - Support for vital work of environmental preservation$550,000
• Sequoia Climate Foundation · 2023 - To support public education on the clean energy transition$500,000
• Gwendolyn J Mccullen Charitable Trust Uw · 2024 - Unrestricted general$359,495
• The Morningstar Philanthropic Foundation D/B/A the Morningstar Foundation · 2024 - General charitable purposes$350,000
• The Morningstar Philanthropic Foundation D/B/A the Morningstar Foundation · 2023 - General charitable purposes$350,000
• Martin Foundation · 2024 - Support for vital work of environmental preservation$325,000
• The McKnight Foundation · 2024 - to decarbonize the power, transportation, and building sectors in Minnesota, Iowa, and Wisconsin, to realize an equitable clean energy…$300,000
• The Ford Foundation · 2024 - For project support for its work to educate the public about state treasurers and comptrollers to clarify administrative roles and their…$300,000
• The McKnight Foundation · 2023 - To decarbonize the power, transportation, and building sectors in Minnesota, Iowa, and Wisconsin, to realize an equitable clean energy…$300,000
• Martin Foundation · 2025 - Provide support to sierra club foundation's military outdoors program$250,000
• Stephen M Silberstein Foundation · 2024 - Protect wild places & responsible resource use$200,000
• The Joyce Foundation · 2024 - Environment$200,000
• Stephen M Silberstein Foundation · 2023 - Protect wild places & responsible resource use$200,000
• Sea Change Foundation · 2023 - Promote energy efficiency$200,000
• The William Penn Foundation · 2024 - 2022 outdoors for all$154,000

Organizations the same foundations fund

Organizations paid by many of the same foundations since 2022, by how much their lists of funders overlap.

• Natural Resources Defense Council IncNew York, NY · 85 shared funders
• EarthjusticeSan Francisco, CA · 60 shared funders
• Environmental Defense Fund IncorporatedNew York, NY · 63 shared funders
• Union of Concerned Scientists IncCambridge, MA · 47 shared funders
• Wilderness SocietyWashington, DC · 38 shared funders
• Southern Poverty Law Center IncMontgomery, AL · 82 shared funders
• Ocean Conservancy IncWashington, DC · 44 shared funders
• World Wildlife Fund IncWashington, DC · 84 shared funders

By tax year of the funder's return

More funders nearby

• Environment grants in California
• All foundation grants in California

How this page is made

Each grant comes from a foundation's IRS Form 990-PF and was linked to this EIN only when this was the single organization in the IRS Business Master File with that name in that state. Grants written under a different spelling, or where several organizations share the name, are not counted here, so the real totals can be higher. Government grants and gifts from individuals do not appear on these returns.

• IRS Tax Exempt Organization Search for EIN 94-6069890
• IRS Business Master File record updated Nov 9, 2026; listed in Publication 78 (eligible for deductible contributions)

Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.