Michigan · Nonprofit
Dart Foundation fka Solid Waste Management Foundation
Dart Foundation fka Solid Waste Management Foundation (Michigan) receives grants from 2 organizations whose IRS filings report $32,058,794 to it, the largest being William & Claire Dart Foundation ($30,158,794). 2 of them have funded it in more than one year.
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- Lansing Economic Area Partnershiplocal
- Prime Coalition Incportfolio match
- Elton Family Foundationportfolio match
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Who funds it, year by year
2017 → 2023: the base held at 2 funders, grant income fell $17M → $3.4M.
From the IRS filings of Dart Foundation fka Solid Waste Management Foundation’s funders (the co-funder graph). Association, not causation.
How concentrated its funding is
Dart Foundation fka Solid Waste Management Foundation leans on a few funders — its largest provides 94% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2017 90% · 2018 100% · 2019 100% · 2020 100% · 2021 100% · 2022 100% · 2023 94% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
Where its funders are
100% of Dart Foundation fka Solid Waste Management Foundation's grant income comes from Michigan funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first.
- Lansing Economic Area PartnershiplocalMI · funds 627 organizations near you
- Prime Coalition Incportfolio matchits grantees resemble your mission
- Elton Family Foundationportfolio matchits grantees resemble your mission
- Craig and Connie Thatcher Foundationportfolio matchits grantees resemble your mission
- Bethel Woods Center for the Arts Incportfolio matchits grantees resemble your mission
- Traders4acauseportfolio matchits grantees resemble your mission
- The Everybody Wins Foundationportfolio matchits grantees resemble your mission
- Rajput-Dasgupta Family Charitable Foundationportfolio matchits grantees resemble your mission
- Osullivan Foundation Trust Dtd 122299portfolio matchits grantees resemble your mission
- Kenny Jacob Rudin Foundationportfolio matchits grantees resemble your mission
- OK Foundationportfolio matchits grantees resemble your mission
- Grace Hospice Foundation Incportfolio matchits grantees resemble your mission
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Organizations like Dart Foundation fka Solid Waste Management Foundation
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Michigan
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Screen this organization
A dated, signed PDF of the compliance screen for Dart Foundation fka Solid Waste Management Foundation: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Dart Foundation fka Solid Waste Management Foundation?
- Dart Foundation fka Solid Waste Management Foundation (Michigan) receives grants from 2 organizations whose IRS filings report $32,058,794 to it, the largest being William & Claire Dart Foundation ($30,158,794). 2 of them have funded it in more than one year.
- How many funders does Dart Foundation fka Solid Waste Management Foundation have?
- IRS filings report 2 organizations giving $32,058,794 in grants to Dart Foundation fka Solid Waste Management Foundation, 2 of which have funded it in more than one year.
- Who is the largest funder of Dart Foundation fka Solid Waste Management Foundation?
- William & Claire Dart Foundation is the largest funder on record, with $30,158,794 in grants. The full list of funders is on this page.
- How can an organization like Dart Foundation fka Solid Waste Management Foundation find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Michigan. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 2funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. What this page cannot tell you · view filing