Arizona · Nonprofit
The Rincon Institute
The Rincon Institute (Arizona) receives grants from 1 organization whose IRS filings report $71,713 to it, the largest being ARIZONA SONORA WESTERN HERITAGE FOUNDATION ($71,713). 0 of them have funded it in more than one year.
- Revenue FY2026
- $14k
- Funders on record
- 1
- Grants received
- $72k
- Net assets
- $36k
What The Rincon Institute does
Mission
The Rincon Institute works to protect the natural resources of the Rincon Mountain District of the Saguaro National Park, the Rincon Valley and the Cienega Corridor. We carry out research, ecological monitoring, outreach and cooperation with landowners, community education, and wildlife habitat restoration to accomplish this goal.
As stated on its FY2026 Form 990-EZ.
Programs
Community Engagement
$4,255 spent26% of program spendingNatural Area Protection
$12,135 spent74% of program spending
The 2 programs described on its FY2026 Form 990-EZ. Program spending in total: $16,390.
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 2020 to 2021, from $649k to $13k (−98%).
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.
56% of The Rincon Institute’s revenue is contributions — about as donation-reliant as the typical peer (92% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 8 of the last 10 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.
Board chair
Robert Tucker
Director/Chairman
As listed on its FY2026 Form 990-EZ.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of The Rincon Institute’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 The Rincon Institute's grant income comes from Arizona funders.
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.
Against its field
The Rincon Institute's revenue fell 74% between 2017 and 2026.
this organization peer median middle 50% of peers· 120 environment nonprofits under $100k, FY2026
Organizations like The Rincon Institute
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 Arizona
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 The Rincon Institute: 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 The Rincon Institute?
- The Rincon Institute (Arizona) receives grants from 1 organization whose IRS filings report $71,713 to it, the largest being ARIZONA SONORA WESTERN HERITAGE FOUNDATION ($71,713). 0 of them have funded it in more than one year.
- How many funders does The Rincon Institute have?
- IRS filings report 1 organization giving $71,713 in grants to The Rincon Institute.
- Who is the largest funder of The Rincon Institute?
- ARIZONA SONORA WESTERN HERITAGE FOUNDATION is the largest funder on record, with $71,713 in grants. The full list of funders is on this page.
- How can an organization like The Rincon Institute find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Arizona. 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 Rincon Institute →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2026 (financials across 2017–2026), 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 22, 2026. What this page cannot tell you · view filing