Michigan · Nonprofit
RHO SIGMA FOUNDATION
RHO SIGMA FOUNDATION (Michigan) receives grants from 1 organization whose IRS filings report $479 to it, the largest being AMAZONSMILE FOUNDATION ($479). 1 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
Against its field
RHO SIGMA FOUNDATION runs a healthier operating margin than three-quarters of the 21,052 human services nonprofits its size.
this organization peer median middle 50% of peers· 21,052 human services nonprofits $100k–$1M, FY2023
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.
- Detroit Economic Growth Associationlocalportfolio match
- Community Foundation of Greater Rochesterportfolio match
- Henry Ford Southeast Michigan Community Healthportfolio match
Who funds it, year by year
2020 → 2023: the base held at 1 funder, grant income rose $35 → $129.
1 of 1 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 100% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of RHO SIGMA FOUNDATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
100% of RHO SIGMA FOUNDATION's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Too little is directly attributable to place on a map.
Funder states come from each funder’s own filing. $479 arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
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.
- Detroit Economic Growth Associationlocalportfolio matchMI · funds 961 organizations near you · its grantees resemble your mission
- Community Foundation of Greater Rochesterportfolio matchits grantees resemble your mission
- Henry Ford Southeast Michigan Community Healthportfolio matchits grantees resemble your mission
- Patrick and Christie Scoggin Family Foundationportfolio matchits grantees resemble your mission
- Margaret Jane Stoker Charitable Trustportfolio matchits grantees resemble your mission
- Arrow Caresportfolio matchits grantees resemble your mission
- Milhouse Charitiesportfolio matchits grantees resemble your mission
- Chris and Michelle Peyerk Foundationportfolio matchits grantees resemble your mission
- Alpha Delta Pi Foundationportfolio matchits grantees resemble your mission
- Toni a Wisne Foundationportfolio matchits grantees resemble your mission
- Whelan Family Foundationportfolio matchits grantees resemble your mission
- Bierlein Companies Foundationportfolio 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 RHO SIGMA 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.
Where the money goes
57% of spending goes to programs.
Governance
Public support
95%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for RHO SIGMA 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 RHO SIGMA FOUNDATION?
- RHO SIGMA FOUNDATION (Michigan) receives grants from 1 organization whose IRS filings report $479 to it, the largest being AMAZONSMILE FOUNDATION ($479). 1 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does RHO SIGMA FOUNDATION have?
- IRS filings report 1 organization giving $479 in grants to RHO SIGMA FOUNDATION, 1 of which have funded it in more than one year.
- Who is the largest funder of RHO SIGMA FOUNDATION?
- AMAZONSMILE FOUNDATION is the largest funder on record, with $479 in grants. The full list of funders is on this page.
- How can an organization like RHO SIGMA 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 FY2023 (financials across 2023–2023), and the filings of 1funders 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. Data on this page was exported August 27, 2026. What this page cannot tell you · view filing