Florida · Nonprofit
JUPITER ISLAND HISTORICAL SOCIETY INC
JUPITER ISLAND HISTORICAL SOCIETY INC (Florida) receives grants from 33 organizations whose IRS filings report $105,475 to it, the largest being LIVE OAK FOUNDATION CUSTODY ($50,800). 26 of them have funded it in more than one year.
Against its field
JUPITER ISLAND HISTORICAL SOCIETY INC has grown faster than half of the 14,524 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 14,524 arts & culture nonprofits under $100k, FY2024
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.
- Loblolly Community Foundation Inclocal
- The William G Pomeroy Foundationportfolio match
- Jeffris Family Foundation Ltdportfolio 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. 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.
95% of JUPITER ISLAND HISTORICAL SOCIETY INC’s revenue is contributions — more donation-reliant than the typical peer (78% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 8 reported years ran a deficit.
Who funds it, year by year
2017 → 2023: the base broadened from 8 funders to 17 funders, grant income rose $2k → $6k.
From the IRS filings of JUPITER ISLAND HISTORICAL SOCIETY INC’s funders (the co-funder graph). Top 30 of 33 funders by total. 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
JUPITER ISLAND HISTORICAL SOCIETY INC leans on a few funders — its largest provides 48% of grant income and the top three 71%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
Largest funder’s share by year: 2017 44% · 2018 48% · 2019 26% · 2020 23% · 2021 56% · 2022 78% · 2023 18% — diversifying over time.
“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.
How long its funders stay
53% of JUPITER ISLAND HISTORICAL SOCIETY INC's funders are still giving 3 years after their first grant; 79% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
54% of JUPITER ISLAND HISTORICAL SOCIETY INC's grant income comes from Florida funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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. Your 33 funders put you under-funded among the 400 organizations that share them.
- Loblolly Community Foundation InclocalFL · funds 29 organizations near you
- The William G Pomeroy Foundationportfolio matchits grantees resemble your mission
- Jeffris Family Foundation Ltdportfolio matchits grantees resemble your mission
- Charles and Helen Reichert Family Foundation Incportfolio matchits grantees resemble your mission
- Florida Humanities Council Incportfolio matchits grantees resemble your mission
- Charitable Trust Under Article VII of Theportfolio matchits grantees resemble your mission
- Heritage Harbor Foundationportfolio matchits grantees resemble your mission
- Indiana Historical Societyportfolio matchits grantees resemble your mission
- Bertha Russ Lytel Foundationportfolio matchits grantees resemble your mission
- Robert David Lion Gardiner Foundation Incportfolio matchits grantees resemble your mission
- Greater Hudson Heritage Networkportfolio matchits grantees resemble your mission
- Historic House Trust of New York City 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 JUPITER ISLAND HISTORICAL SOCIETY 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 Florida
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
100%
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 JUPITER ISLAND HISTORICAL SOCIETY 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 JUPITER ISLAND HISTORICAL SOCIETY INC?
- JUPITER ISLAND HISTORICAL SOCIETY INC (Florida) receives grants from 33 organizations whose IRS filings report $105,475 to it, the largest being LIVE OAK FOUNDATION CUSTODY ($50,800). 26 of them have funded it in more than one year.
- How many funders does JUPITER ISLAND HISTORICAL SOCIETY INC have?
- IRS filings report 33 organizations giving $105,475 in grants to JUPITER ISLAND HISTORICAL SOCIETY INC, 26 of which have funded it in more than one year.
- Who is the largest funder of JUPITER ISLAND HISTORICAL SOCIETY INC?
- LIVE OAK FOUNDATION CUSTODY is the largest funder on record, with $50,800 in grants. The full list of funders is on this page.
- How can an organization like JUPITER ISLAND HISTORICAL SOCIETY INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. 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 33funders 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