STEM grants for nonprofits in Maine
84 private foundations reported 115 stem grants to organizations in Maine on IRS 990-PF returns for tax year 2022 or later, $16.5M in all. 21 of them are based in Maine.
Foundations that fund stem in Maine
20 of the 84: profiles in our foundation directory first, then by the number of stem grants to Maine organizations on their latest return. Each shows its largest such grants.
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Amazonsmile Foundation
Seattle, WA · latest return: tax year 2023- The Eagle Hill Institute, Steuben - General support$75
- Center for Wildlife Health Research, Topsham - General support$70
- Bigelow Laboratory for Ocean Sciences, East Boothbay - General support$69
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Gave $102.7M in 2024
Harold Alfond Foundation
Portland, ME · latest return: tax year 2024- University of Maine System, Orono - Revitalize graduate & professional center & engineering, computing, & info science$7,000,000
- Bigelow Laboratory for Ocean Sciences, East Boothbay - Bigelow innovation and education wing$3,869,390
- Maine Mathematics and Science Alliance, Augusta - STEM workforce ready maine 2030$1,987,890
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Gave $49.3M in 2024
The Henry Luce Foundation Inc
New York, NY · latest return: tax year 2024- Colby College, Waterville - Support for the Clare Boothe Luce STEM program$458,200
- University of Maine, Orono - Support for a Clare Boothe Luce STEM professorship$150,000
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Gave $625M in 2024
The William & Flora Hewlett Foundation
Menlo Park, CA · latest return: tax year 2024- President and Trustees of Bates College, Lewiston - For support of the institute for a racially just, inclusive, and open STEM education$750,000
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The G Unger Vetlesen Foundation
New York, NY · latest return: tax year 2024- Bigelow Laboratory for Ocean Sciences, East Boothbay - For recruitment and/or research purposes$250,000
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Manton Foundation
New York, NY · latest return: tax year 2024- Bigelow Laboratory for Ocean Sciences, East Boothbay - For the marine educator endowment$100,000
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Gave $350M in 2024
The David and Lucile Packard Foundation
Los Altos, CA · latest return: tax year 2024- Indigenous Peoples Rights Inc, Yarmouth - Environment and Science$50,000
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Gave $14.4M in 2024
Elmina B Sewall Foundation
Freeport, ME · latest return: tax year 2024- Maine Center for Coastal Fisheries, Stonington - General Operating Support$20,000
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Jae S Lim Foundation
Wilmington, DE · latest return: tax year 2024- Bangor High School, Bangor - 2024-25 Bangor Math & Science Prizes PROGRAM$4,000
- Bonny Eagle High School, Standish - 2024-25 Bonny Eagle Math & Science Prizes PROGRAM$4,000
- Lewiston High School, Lewiston - 2024-25 Lewiston Math & Science Prizes program$4,000
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Gave $4.4M in 2024
Onion Foundation
Auburn, ME · latest return: tax year 2024- Gulf of Maine Research Institute, Portland - To support science-based education programs$20,000
- Haystack Mountain School of Crafts, Deer Isle - To support local children and adults using technology in creative learning$20,000
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Gave $1.3M in 2025
Morton-Kelly Charitable Trust
Portland, ME · latest return: tax year 2025- Friends of Casco Bay, South Portland - Tracking, Protecting, and Restoring Eelgrass through Technology and Community Engagement$13,000
- Bigelow Laboratory for Ocean Sciences, East Boothbay - Operating Support$10,000
- Heritage Vivant - Living Heritage dba Acadian Village Maine, Van Buren - Enhancing the Visitor Experience through Technology$7,500
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Gave $546K in 2025
Fisher Charitable Foundation
Portland, ME · latest return: tax year 2025- Mount Desert Island Biological Laboratory, Salisbury Cove - Pfas testing$9,983
- Maine Center for Coastal Fisheries, Stonington - Eastern maine skippers program$2,500
- Challenger Learning Center of Maine, Bangor - Increased access to STEM education$2,000
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Gave $1.1M in 2025
Generac Foundation Inc
Waukesha, WI · latest return: tax year 2025- Portland Education Foundation, Portland - STEM materials for K-8 students$5,000
- Boys & Girls Clubs of Southern Maine, Portland - STEM program support$2,500
- Building Steam, S Portland - South Portland High School Robotics Fund$1,000
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Rochkind Wagner Foundation
Morristown, NJ · latest return: tax year 2025- Messalonskee School District, Oakland - AP Achievement Awards in Math and Science$2,300
- Maracook Community High School, Readfield - AP Awards in Math and Science$704
- Gardiner Area High School, Gardiner - AP Achievement Awards in Math and Science$400
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Jane's Trust Foundation
Boston, MA · latest return: tax year 2024- Bigelow Laboratory for Ocean Sciences, East Boothbay - Climate change-related oceanographic research$200,000
- Gulf of Maine Research Institute, Portland - Connecting gulf of maine communities to the science of coastal hazards$85,000
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Gave $5M in 2024
Maine Health Access Foundation Inc
Augusta, ME · latest return: tax year 2024- Mindbridge, Portland - Healing Racial Trauma Initiative (HRTI)$50,000
- Frannie Peabody Center, Portland - Technology Upgrades for Improved Security and HIPAA compliance$10,000
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Gave $681K in 2024
Marr-Anderson Family Foundation
Falmouth, ME · latest return: tax year 2024- Grahamtastic Connection, Springvale - Technology Support for Children in Need$10,000
- Maine Center for Coastal Fisheries, Stonington - Eastern Maine Skippers Program$10,000
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Gave $92K in 2024
Oak Grove School
East Vassalboro, ME · latest return: tax year 2024- Piscataquis Community High School, Guilford - Science based literacy$957
- Piscataquis Community High School, Guilford - STEM games$947
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Gave $961K in 2024
Scott R Mackenzie Foundation Inc
Jacksonville, FL · latest return: tax year 2024- Mount Desert Island Biological Laboratory, Bar Harbor - This project seeks to continue the project awarded in 2022 to establish a novel treatment strategy for…$450,000
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Palmer Walbridge Foundation Tr
Pennington, NJ · latest return: tax year 2025- Bigelow Laboratory for Ocean Sciences, East Boothbay - Unrestricted general$150,000
Search more stem funders giving in Maine →
Organizations several of these foundations fund
Maine organizations that received stem grants from two or more of the foundations above, on the same returns.
| Organization | Funders | Grants total |
|---|---|---|
| Bigelow Laboratory for Ocean Sciences East Boothbay | 7 | $4,579,459 |
| Maine Center for Coastal Fisheries Stonington | 4 | $32,522 |
| Mount Desert Island Biological Laboratory Salisbury Cove | 2 | $459,983 |
| Gulf of Maine Research Institute Portland | 2 | $105,000 |
| Mindbridge Portland | 2 | $50,021 |
| Portland Education Foundation Portland | 2 | $9,000 |
How to use this list
A foundation is listed because its own latest tax return itemizes grants to organizations in Maine that we classify as stem, by the purpose the foundation wrote or by the recipient's IRS activity code. Their typical grant is the middle of the funders' own typical grants across everything they fund. Start with funders whose typical grant is close to what you need and whose past recipients look like your organization, then open the profile for all of its grants and any application instructions.
Of these 84 foundations, 33 describe how to apply on their latest return; many others give only to organizations they already know. A badge such as Gave $1.2M in 2024 repeats what the latest return reports; it does not mean the foundation is accepting proposals now.
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.