Colorado · Nonprofit
SAND CREEK MASSACRE FOUNDATION
SAND CREEK MASSACRE FOUNDATION (Colorado) receives grants from 3 organizations whose IRS filings report $96,425 to it, the largest being National Park Foundation ($81,425). 1 of them have funded it in more than one year.
Against its field
SAND CREEK MASSACRE FOUNDATION runs a healthier operating margin than three-quarters of the 10,664 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 10,664 arts & culture nonprofits $100k–$1M, 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.
- The Art and Ann Boeken Trust Frontier Banklocal
- Colorado Humanitiesportfolio match
- Montana History Foundationportfolio match
The organization over time
Each line starts at 100 in 2020, so what you read is the shape rather than the size: 150 means half as much again as 2020, 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.
Government-grant reliance: 2025 43%. Grants only. Government contracts and fees sit inside program revenue.
99% of SAND CREEK MASSACRE FOUNDATION’s revenue is contributions — more reliant on donations than three-quarters of its peers (64% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 4 reported years ran a deficit.
reserve
Who funds it, year by year
2022 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $3k → $82k.
From the IRS filings of SAND CREEK MASSACRE 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.
How concentrated its funding is
SAND CREEK MASSACRE FOUNDATION leans on a few funders — its largest provides 84% 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
97% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund SAND CREEK MASSACRE FOUNDATION.
Largest funder’s share by year: 2022 100% · 2023 99% — 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
SAND CREEK MASSACRE FOUNDATION draws 97% of its grant income from funders outside Colorado, across 3 states in all.
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.
- The Art and Ann Boeken Trust Frontier BanklocalCO · funds 2 organizations near you
- Colorado Humanitiesportfolio matchits grantees resemble your mission
- Montana History Foundationportfolio matchits grantees resemble your mission
- Texas Historical Foundationportfolio matchits grantees resemble your mission
- Alex L Brewer Family Foundationportfolio matchits grantees resemble your mission
- Humanities Montanaportfolio matchits grantees resemble your mission
- The Bob and Doris Johnston Foundationportfolio matchits grantees resemble your mission
- Colorado Grand Incportfolio matchits grantees resemble your mission
- Lewis and Clark Trail Heritage Fdtnportfolio matchits grantees resemble your mission
- Eugene V and Clare E Thaw Charitable Trustportfolio matchits grantees resemble your mission
- Ballantine Family Fundportfolio matchits grantees resemble your mission
- Indian Land Tenure 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.
Government funding SAND CREEK MASSACRE FOUNDATION receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $200k on record.
- National Archives and Records Administration$200k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like SAND CREEK MASSACRE 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 Colorado
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
74% of spending goes to programs.
Governance
Public support
99%
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 SAND CREEK MASSACRE 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 SAND CREEK MASSACRE FOUNDATION?
- SAND CREEK MASSACRE FOUNDATION (Colorado) receives grants from 3 organizations whose IRS filings report $96,425 to it, the largest being National Park Foundation ($81,425). 1 of them have funded it in more than one year.
- How many funders does SAND CREEK MASSACRE FOUNDATION have?
- IRS filings report 3 organizations giving $96,425 in grants to SAND CREEK MASSACRE FOUNDATION, 1 of which have funded it in more than one year.
- Who is the largest funder of SAND CREEK MASSACRE FOUNDATION?
- National Park Foundation is the largest funder on record, with $81,425 in grants. The full list of funders is on this page.
- How can an organization like SAND CREEK MASSACRE FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Colorado. 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 2020–2025), 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