Michigan · Nonprofit
THUNDER BAY RIVER CENTER INC
THUNDER BAY RIVER CENTER INC (Michigan) receives grants from 3 organizations whose IRS filings report $17,068 to it, the largest being FIRST FEDERAL OF NORTHERN MICHIGAN LEGACY FOUNDATION ($12,000). 2 of them have funded it in more than one year.
Against its field
THUNDER BAY RIVER CENTER INC runs a healthier operating margin than three-quarters of the 2,054 environment nonprofits its size.
this organization peer median middle 50% of peers· 2,054 environment nonprofits under $100k, FY2025
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.
- Great Lakes Fishery Trust Inclocalportfolio match
- Besser Foundationlocal
- Great Lakes Aquatic Habitat Network and Fund Incportfolio match
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
14% of THUNDER BAY RIVER CENTER INC’s revenue is contributions — more earned-revenue than three-quarters of its peers (92% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 7 reported years ran a deficit.
Who funds it, year by year
2021 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $23 → $10k.
1 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 0% 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 THUNDER BAY RIVER CENTER INC’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.
How concentrated its funding is
THUNDER BAY RIVER CENTER INC leans on a few funders — its largest provides 70% 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: 2021 100% · 2022 71% · 2023 100% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. 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 THUNDER BAY RIVER CENTER INC's grant income comes from Michigan funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $68 arriving through sponsors registered in 1 stateis 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.
- Great Lakes Fishery Trust Inclocalportfolio matchMI · funds 2 organizations near you · its grantees resemble your mission
- Besser FoundationlocalMI · funds 16 organizations near you
- Great Lakes Aquatic Habitat Network and Fund Incportfolio matchits grantees resemble your mission
- Rosso Family Foundationportfolio matchits grantees resemble your mission
- Edward and Elyse Rogers Family Foundationportfolio matchits grantees resemble your mission
- Southwest Minnesota Arts Councilportfolio matchits grantees resemble your mission
- Barton J Ingraham & Gail G Ingraham Foundationportfolio matchits grantees resemble your mission
- Spellissy Foundationportfolio matchits grantees resemble your mission
- Coles Family Foundation co Peter Colesportfolio matchits grantees resemble your mission
- Donald Weesner Charitable Tr Uaportfolio matchits grantees resemble your mission
- C & N Foundationportfolio matchits grantees resemble your mission
- Ray & Peg Hirvonen Charitable 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 THUNDER BAY RIVER CENTER INC
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.
Public support
80%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for THUNDER BAY RIVER CENTER INC: 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 THUNDER BAY RIVER CENTER INC?
- THUNDER BAY RIVER CENTER INC (Michigan) receives grants from 3 organizations whose IRS filings report $17,068 to it, the largest being FIRST FEDERAL OF NORTHERN MICHIGAN LEGACY FOUNDATION ($12,000). 2 of them have funded it in more than one year.
- How many funders does THUNDER BAY RIVER CENTER INC have?
- IRS filings report 3 organizations giving $17,068 in grants to THUNDER BAY RIVER CENTER INC, 2 of which have funded it in more than one year.
- Who is the largest funder of THUNDER BAY RIVER CENTER INC?
- FIRST FEDERAL OF NORTHERN MICHIGAN LEGACY FOUNDATION is the largest funder on record, with $12,000 in grants. The full list of funders is on this page.
- How can an organization like THUNDER BAY RIVER CENTER INC 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 FY2025 (financials across 2019–2025), and the filings of 3funders 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