Funding search · EIN 471289795 · Auburn, ME
Onion Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 705
- grants reported
- $10.7M
- total given
- 2022–2024
- filing years
- $12,500
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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0 grants matching “water quality and access”
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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Momentum Conservation2 grants · $1.1M
- Maine Environmental Education Association6 grants · $206,000
- Maine Association of Nonprofits4 grants · $153,000
- Maine Gearshare3 grants · $122,000
- Maine Mathematics and Science Alliance3 grants · $121,000
- New Learning Journey3 grants · $120,000
- Maine Initiatives2 grants · $100,000
- Wabanaki Public Health and Wellness4 grants · $95,000
- Maine Audubon3 grants · $87,500
- Mayo Street Arts2 grants · $77,500
Giving over time
Grant history
The 100 largest of 705 grants.
- $625,000
Momentum Conservation · Portland, ME · 2024
To provide technical and financial support to land trusts
- $470,000
Momentum Conservation · Portland, ME · 2023
To provide technical and financial support for Land Trusts
- $88,000
Maine Association of Nonprofits · Portland, ME · 2024
To support the Cultural Alliance of Maine's arts and for culture advocacy
- $75,000
Maine Environmental Education Association · Brunswick, ME · 2024
To conduct a landscape analysis of Maines Youth Climate Movement
- $75,000
New Learning Journey · Fayston, VT · 2024
To support the First Light program in increasing access to land and water for Wabanaki people
- $75,000
Maine Association of Nonprofits (Fbo Cultural Alliance of Maine (Cam)) · Portland, ME · 2023
For the Cultural Alliance of Maine's arts and culture advocacy
- $71,000
Maine Mathematics and Science Alliance · Augusta, ME · 2024
To support the professional development of educators
- $57,500
Mayo Street Arts · Portland, ME · 2024
To provide general support
- $52,500
Maine Audubon · Falmouth, ME · 2024
To expand science-based environmental education to Lewiston and Bangor schools
- $50,000
Maine Initiatives · Portland, ME · 2024
To support the Maine Outdoor Equity Fund
- $50,000
Maine Association of Nonprofits · Portland, ME · 2022
Cultural Alliance of Maine
- $50,000
Maine Initiatives · Portland, ME · 2022
Outdoor Equity Fund
- $46,000
Maine Environmental Education Association · Brunswick, ME · 2023
To provide outdoor learning mini-grants to Maine public schools
- $42,500
Space Gallery · Portland, ME · 2024
To support a weekend-long gathering for the Maine dance community
- $42,000
Maine Gearshare · Portland, ME · 2023
To provide general support
- $41,000
Maine Lakes · Yarmouth, ME · 2024
To provide general support
- $40,000
Maine Gearshare · Brunswick, ME · 2024
To provide general support
- $40,000
President and Trustees of Bates College · Lewiston, ME · 2024
To support the Bates Dance Festival
- $40,000
Wabanaki Public Health and Wellness · Bangor, ME · 2024
To support the ongoing development and sustainability of its fundraising team
- $40,000
Maine Gearshare · Portland, ME · 2022
Personnel costs connected with its provision of free gear to enable young people to participate safely in outdoor expeditions
- $40,000
Southern Maine Conservation Collaborative · Portland, ME · 2022
Land Trust Intermediary
- $35,000
Out Maine · Rockland, ME · 2024
To support an arts retreat at Haystack for Maine LGBTQ+ high school students
- $35,000
Trekkers · Rockland, ME · 2023
To provide general support
- $35,000
Maine Environmental Education Association · Brunswick, ME · 2022
Outdoor Learning Minigrant Program
- $30,000
Appalachian Mountain Club · Boston, MA · 2024
To support the Maine Woods Community Youth and Environment Program
- $30,000
Climate Change for All Educators · Valley Cottage, NY · 2024
To establish the Maine Climate Education Hub
- $30,000
Maine Coast Heritage Trust · Topsham, ME · 2024
To support Maine Land Trust Network's Land Trust Census
- $30,000
New England Grassroots Environment Fund · Newmarket, NH · 2024
To support grantmaking and convening in Maine
- $30,000
Rippleffect · Portland, ME · 2024
To support the ROLE program
- $30,000
The Climate Initiative · Kennebunkport, ME · 2024
To launch the Maine Collegiate Climate Policy Institute
- $30,000
Wild Seed Project · North Yarmouth, ME · 2024
To implement experiential ecology programs in schools with accompanying teacher training
- $30,000
Brunswick-Topsham Land Trust · Brunswick, ME · 2023
To support nature-based education programs
- $30,000
Climate Change for All Educators · New Canaan, CT · 2023
To establish the Maine Climate Education Hub
- $30,000
East Coast Greenway Alliance · Durham, NC · 2023
To support trail development and connectivity in Maine
- $30,000
Maine Mathematics and Science Alliance · Augusta, ME · 2023
Professional development of educators using the Teach ME Outside curriculum
- $30,000
New England Grassroots Environment Fund · Newmarket, NH · 2023
To support grantmaking and convening in Maine
- $30,000
Quebec-Labrador Foundation (Fbo Community Geographics) · Farmington, ME · 2023
For Maine Trail Finder to increase access to trails for disabled persons
- $30,000
Rippleffect · Portland, ME · 2023
To support the Rippleffect Outdoor Leadership Education program
- $30,000
Quimby Family Foundation · Cape Elizabeth, ME · 2022
Maine GearShare
- $27,500
Maine Academy of Modern Music · Portland, ME · 2023
To support strategic planning
- $27,500
Northeastern University (Fbo Roux Institute) · Boston, MA · 2023
To prepare environment nonprofit organizations to develop an earned income stream
- $27,475
University of Southern Maine · Portland, ME · 2023
Data Innovation Project to help arts organizations collect and analyze data
- $27,000
Lake Stewards of Maine · Auburn, ME · 2024
To support general operations and professional development
- $27,000
Northeastern University · Boston, MA · 2024
For the Roux Institute to help environmental nonprofit organizations develop income
- $26,500
Maine Community Integration · Lewiston, ME · 2023
To support outdoor and nature experiences for New Mainer youth and families
- $25,700
University of Maine Foundation · Orono, ME · 2024
To support training for teachers to bring their classroom outdoors
- $25,000
Chewonki Foundation · Wiscasset, ME · 2024
To enable Maine students to participate in the Outdoor Classroom
- $25,000
Friends of Katahdin Woods and Waters · Portland, ME · 2024
To support the Katahdin Learning Project
- $25,000
Gateway Community Services Maine · Portland, ME · 2024
To support transportation, lodging, and staffing for outdoor experiences
- $25,000
Kennebec Estuary Land Trust · Bath, ME · 2024
To support the Maine Trails Coalition
- $25,000
Lakes Environmental Association · Bridgton, ME · 2024
To provide general support
- $25,000
Maine Community Integration · Lewiston, ME · 2024
To support programs that connect youth and adults to the outdoors with field trips and education
- $25,000
Maine Public · Lewiston, ME · 2024
To enable the Climate Desk to hire a full-time editor
- $25,000
Natural Resources Council of Maine (Nrcm) · Augusta, ME · 2024
To provide general support
- $25,000
Quebec-Labrador Foundation · Farmington, ME · 2024
Trail assessments and training on access for people with disabilities
- $25,000
Schoodic Institute at Acadia National Park · Winter Harbor, ME · 2024
To expand the Schoodic Education Adventure for underserved Maine schools
- $25,000
Sierra Club Foundation · Oakland, CA · 2024
To support education and mobilization activities conducted by Sierra Club Maine
- $25,000
The Ecology School · Saco, ME · 2024
To provide Maine students with immersive ecology education
- $25,000
Tree Street Youth · Lewiston, ME · 2024
To expand three outdoor programs for youth of all ages
- $25,000
Friends of Katahdin Woods & Waters · Portland, ME · 2023
To support the Katahdin Learning Project
- $25,000
Kennebec Estuary Land Trust · Bath, ME · 2023
To support the Maine Trails Collaboration
- $25,000
La Arts · Auburn, ME · 2023
To provide general support
- $25,000
Lake Stewards of Maine · Auburn, ME · 2023
To provide general support
- $25,000
Maine Adaptive Sports & Recreation · Bethel, ME · 2023
To provide general support
- $25,000
Maine Association for the Education of Young Children (Fbo Meeco) · Augusta, ME · 2023
To train child care providers to offer play based nature learning for pre-k children
- $25,000
Maine Lakes · Yarmouth, ME · 2023
To establish the Maine Freshwater Education Network
- $25,000
New Learning Journey · Fayston, VT · 2023
For the First Light program; access to land and water for Wabanaki people
- $25,000
Schoodic Institute at Acadia National Park · Winter Harbor, ME · 2023
To expand seasonal education staff for the Schoodic Education Adventure program
- $25,000
Teens To Trails · Brunswick, ME · 2023
To support planning to make programs more inclusive for disabled youth and youth of color
- $25,000
The Ecology School · Saco, ME · 2023
To provide Maine students with immersive ecology education
- $25,000
Maine Community Foundation · Ellsworth, ME · 2022
Maine Climate Leadership Fund - Rural Capacity Building Initiative
- $23,000
Cobscook Institute · Trescott Township, ME · 2024
To expand the Midden Minders program to engage more students in Washington County
- $22,900
Maine Crafts Association · Gardiner, ME · 2023
To convene Maine craft-serving organizations' leaders
- $22,500
Khmer Maine · Portland, ME · 2024
To host a monthly series of Indigenous learning events and outdoor trips
- $22,000
The Allagash Wilderness Waterway Foundation · Casco, ME · 2024
To develop the canoe and leadership skills of Wabanaki Youth
- $21,500
Pine Tree Society · Bath, ME · 2023
To support people with disabilities attending Pine Tree summer camp
- $20,000
317 Main Community Music Center · Yarmouth, ME · 2024
To provide general support
- $20,000
Abbe Museum · Bar Harbor, ME · 2024
To provide general support
- $20,000
Bay Chamber Concerts & Music School · Camden, ME · 2024
To support music education in midcoast Maine
- $20,000
Bicycle Coalition of Maine · Portland, ME · 2024
To provide general support
- $20,000
Boothbay Sea and Science Center · East Boothbay, ME · 2024
To support seaweed farming and marine education in schools
- $20,000
Brunswick-Topsham Land Trust · Brunswick, ME · 2024
To provide teacher training on a model nature learning curriculum
- $20,000
Camp Beech Cliff · Mt Desert, ME · 2024
To run three new programs to connect underserved teens and adults to nature
- $20,000
Camp Susan Curtis · Portland, ME · 2024
To support underserved campers in Maine
- $20,000
Center for An Ecology Based Economy · Norway, ME · 2024
To provide general support
- $20,000
Chocolate Church Arts Center · Bath, ME · 2024
To provide general support
- $20,000
Classical Uprising · Portland, ME · 2024
To provide general support
- $20,000
Downeast Institute for Applied Marine Research and Education · Beals, ME · 2024
To support K-12 environmental literacy programs
- $20,000
Eastport Arts Center · Eastport, ME · 2024
To provide general support
- $20,000
Gulf of Maine Research Institute · Portland, ME · 2024
To support science-based education programs
- $20,000
Haystack Mountain School of Crafts · Deer Isle, ME · 2024
To support local children and adults using technology in creative learning
- $20,000
Healthy Acadia · Ellsworth, ME · 2024
To coordinate and host Juneteenth Weekend on the Water events and a new swim program
- $20,000
Ifka Community Services · Lewiston, ME · 2024
To connect immigrant youth to nature through hands-on activities
- $20,000
Indigo Arts Alliance · Portland, ME · 2024
To provide general support
- $20,000
Johnson Hall · Gardiner, ME · 2024
To provide general support
- $20,000
Justme for Justus · South Freeport, ME · 2024
For a youth-led project to advance climate justice and civic engagement
- $20,000
Maine Academy of Modern Music · Portland, ME · 2024
To provide general support
- $20,000
Maine Climate Action Now · Bar Harbor, ME · 2024
To provide general support
- $20,000
Maine Crafts Association · Gardiner, ME · 2024
To provide general support
- $20,000
Maine Sea Grant · Orono, ME · 2024
To support Maine Sea Grant as it brings marine science to inland learners
Who else funds this kind of work
Same state
- Maine Community Foundation3,243 grants · $159.7M
- TD Charitable Foundation5,142 grants · $113.7M
- Harold Alfond Foundation154 grants · $253.7M
Similar purposes
- Silicon Valley Community Foundation10,471 grants · $10.10B
- Gs Donor Advised Philanthropy Fund19,135 grants · $6.79B
- Bill & Melinda Gates Foundation13,441 grants · $18.24B
Similar grant size
- The Ayco Charitable Foundation15,303 grants · $2.05B
- Paypal Charitable Giving Fund32,081 grants · $1.40B
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

