Colorado · Nonprofit
SERIMUS OPERATING FOUNDATION
SERIMUS OPERATING FOUNDATION (Colorado) receives grants from 1 organization whose IRS filings report $485,547 to it, the largest being COMMUNITY FOUNDATION OF NORTHERN COLORADO ($485,547). 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.
- Revenue FY2024
- $264k
- Funders on record
- 1
- Grants received
- $486k
- Net assets
- $19k
What Serimus Operating Foundation does
Programs
Amadeus: provides economically disadvantaged children and youth the opportunity to study music through professionally taught individual and small group lessons, as well as access to instruments. This program reached 290 children and youth in 2024.
$60,880 spentEarly music: music therapist led music and movement class instruction for pre-school students designed to advance children's speech and language and pre-literacy development, cognitive skills, listening skills, social skills, impulse control and fine and gross motor skills. Approximately 827 children participated in 2024.
$49,611 spentBoundless: supports program advisor to provide lessons of any kind to children whose families cannot afford the expense. Approximately 58 children were served in 2024.
$734 spent
The 3 programs described on its FY2024 Form 990-PF.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2018 to 2019, from $64k to $40k (−38%).
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2017 → 2023: the base held at 1 funder, grant income fell $57k → $0.
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.
Left out of every figure on this page: $845k from one payer (the payer shares this organization's board, largest Serimus Foundation). These are real filings, and they are not money SERIMUS OPERATING FOUNDATION raised.
From the IRS filings of SERIMUS OPERATING 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 SERIMUS OPERATING 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. $486k 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.
Against its field
SERIMUS OPERATING FOUNDATION's revenue fell 29% between 2017 and 2024.
this organization peer median middle 50% of peers· 22,812 education nonprofits $100k–$1M, FY2024
Organizations like SERIMUS OPERATING FOUNDATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the 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.
Screen this organization
A dated, signed PDF of the compliance screen for SERIMUS OPERATING 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. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds SERIMUS OPERATING FOUNDATION?
- SERIMUS OPERATING FOUNDATION (Colorado) receives grants from 1 organization whose IRS filings report $485,547 to it, the largest being COMMUNITY FOUNDATION OF NORTHERN COLORADO ($485,547). 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 SERIMUS OPERATING FOUNDATION have?
- IRS filings report 1 organization giving $485,547 in grants to SERIMUS OPERATING FOUNDATION, 1 of which have funded it in more than one year.
- Who is the largest funder of SERIMUS OPERATING FOUNDATION?
- COMMUNITY FOUNDATION OF NORTHERN COLORADO is the largest funder on record, with $485,547 in grants. The full list of funders is on this page.
- How can an organization like SERIMUS OPERATING 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.
Play a game about who funds Serimus Operating →
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 1 funders 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 October 14, 2026. What this page cannot tell you · view filing