California · Nonprofit
MARIN OPEN STUDIOS
MARIN OPEN STUDIOS (California) receives grants from 6 organizations whose IRS filings report $282,616 to it, the largest being MARIN COMMUNITY FOUNDATION ($250,000). 2 of them have funded it in more than one year, and 94% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2024
- $213k
- Funders on record
- 6
- Grants received
- $283k
- Net assets
- $139k
What Marin Open Studios does
Mission
Marin Open Studios is a non-profit visual arts organization dedicated to engaging and supporting marin county artists and their audiences through events, programs and services. Marin Open Studios champions a diverse and inclusive community art experience providing established and emerging artists with direct connections to bay area audiences and art patrons.
As stated on its FY2024 Form 990.
Programs
An artist guide for the open studios event is printed to list the location of each open studio, to show an example of the artist's work, and offer maps to find the studios. The printing of the guide is partially funded by selling advertisement space in the guide. This year Marin Open Studios was included in marin magazine's local getaways app, featuring all participating artists.
$74,109 spent$29,966 earned by the program51% of program spendingMarin Open Studios offers the public self-guided tours of the studios of marin county's artists during the first two weekends of may, with a large gallery open for one month. The event includes an exhibition of over 250 participating artists at the sausalito center for the arts. An online year around website featuring all artists with their individual searchable bio page, images, and link to their website is offered at marinopenstudios.org.a preview gala reception at the gallery is attended by over 800 art lovers, giving the public the opportunity to meet artists and sample their artwork. Each year approximately 30,000 residents are directly exposed to Marin Open Studios artists. A 40 page artists' tour guide with enclosed maps is distributed to 35,000 residents within marin magazine and to countywide venues, along with comprehensive print, social, and digital media coverage.Marin Open Studios offers a shared exhibition space program for artists without studios, and this year they partnered with ten countywide venues to broaden the support for a variety of artmaking.
$63,492 spent$72,700 earned by the program43% of program spendingThe shared studios program was expanded to ten community partnerships, offering more artists without studios the ability to join Marin Open Studios and gain exposure for their artwork and careers. Marin Open Studios provided organizational support, volunteers, and social media coverage for these sites.
$8,620 spent$15,087 earned by the program6% of program spendingDiversity programMarin Open Studios continues a commitment begun in 2019 to include diversity by partnering with canal alliance and marin city artists. Marin Open Studios gives scholarships and art supplies to the marin city arts and culture gallery and its members led by director oshalla diana marcus. The canal alliance artists also receive scholarships in addition to exhibit spaces and an opening reception.
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $146,221.
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 2019 to 2020, from $113k to $151k (+34%).
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.
41% of MARIN OPEN STUDIOS’s revenue is contributions — about as donation-reliant as the typical peer (64% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 8 reported years ran a deficit.
reserve
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 broadened from 1 funder to 3 funders, grant income fell $33k → $32k.
4 of 6 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 94% 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 MARIN OPEN STUDIOS’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
MARIN OPEN STUDIOS leans on a few funders — its largest provides 88% of grant income and the top three 96%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
94% 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 MARIN OPEN STUDIOS.
Largest funder’s share by year: 2017 100% · 2018 100% · 2020 92% · 2021 92% · 2022 94% · 2023 94% — 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.
Where its funders are
94% of MARIN OPEN STUDIOS'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. Of the $18k that is directly attributable, 66% of it comes from funders outside California, across 2 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $265k arriving through sponsors registered in 3 states 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
MARIN OPEN STUDIOS is better cushioned than half of the 17,936 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 17,936 arts & culture nonprofits $100k–$1M, FY2024
Organizations like MARIN OPEN STUDIOS
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
70% 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 MARIN OPEN STUDIOS: 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 MARIN OPEN STUDIOS?
- MARIN OPEN STUDIOS (California) receives grants from 6 organizations whose IRS filings report $282,616 to it, the largest being MARIN COMMUNITY FOUNDATION ($250,000). 2 of them have funded it in more than one year, and 94% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does MARIN OPEN STUDIOS have?
- IRS filings report 6 organizations giving $282,616 in grants to MARIN OPEN STUDIOS, 2 of which have funded it in more than one year.
- Who is the largest funder of MARIN OPEN STUDIOS?
- MARIN COMMUNITY FOUNDATION is the largest funder on record, with $250,000 in grants. The full list of funders is on this page.
- How can an organization like MARIN OPEN STUDIOS find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 Marin Open Studios →
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 6 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