Arizona · Nonprofit
TETRA STRING QUARTET
TETRA STRING QUARTET (Arizona) receives grants from 5 organizations whose IRS filings report $48,592 to it, the largest being KAY HARDESTY LOGAN FOUNDATION ($30,000). 3 of them have funded it in more than one year.
- Revenue FY2025
- $222k
- Funders on record
- 5
- Grants received
- $49k
- Net assets
- $87k
What Tetra String Quartet does
Mission
Tetras strong local presence engages audiences from every corner of the community and reflects their belief that access to the arts is an essential human right. Tetras tcimi trains young musicians to perform in small ensembles with excellence and channel their creative strengths to effect positive change in themselves and the community.
As stated on its FY2025 Form 990.
Program
During the 2024-25 season, tetra performed 5 azure family concerts, reaching 350 live audience members and 7,500 people virtually. The Tetra String Quartets free azure family concerts are fun and engaging performances tailored to individuals with autism spectrum disorder or other sensory processing disorders. Since many with autism cannot attend traditional music performances due to uncontrollable vocalizations or physical movements, azure concerts are designed to create an inclusive environment where all behaviors are accepted and embraced. Azure family concerts have been serving families in the valley since 2015. During this time, tetra has produced 46 azure family concerts, making live music safe and accessible for neurodivergent people in arizona.
$165,812 spent$86,502 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $165,812.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 2024 to 2025, from $80k to $115k (+43%).
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 6%. Grants only. Government contracts and fees sit inside program revenue.
58% of TETRA STRING QUARTET’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. 1 of the last 7 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.
Chief executive
Jenna Dalbey
Executive director
As listed on its FY2025 Form 990.
Who funds it, year by year
2020 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $2k → $5k.
2 of 5 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 26% 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 TETRA STRING QUARTET’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
TETRA STRING QUARTET leans on a few funders — its largest provides 62% of grant income and the top three 88%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
26% 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 TETRA STRING QUARTET.
Largest funder’s share by year: 2020 100% · 2021 100% · 2022 100% · 2023 100% — 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
TETRA STRING QUARTET draws 99% of its grant income from funders outside Arizona, across 3 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $13k arriving through sponsors registered in 2 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
TETRA STRING QUARTET has grown faster than three-quarters of the 11,634 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 11,634 arts & culture nonprofits $100k–$1M, FY2025
Organizations like TETRA STRING QUARTET
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.
Where the money goes
90% of spending goes to programs.
Governance
Public support
95%
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 TETRA STRING QUARTET: 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 TETRA STRING QUARTET?
- TETRA STRING QUARTET (Arizona) receives grants from 5 organizations whose IRS filings report $48,592 to it, the largest being KAY HARDESTY LOGAN FOUNDATION ($30,000). 3 of them have funded it in more than one year.
- How many funders does TETRA STRING QUARTET have?
- IRS filings report 5 organizations giving $48,592 in grants to TETRA STRING QUARTET, 3 of which have funded it in more than one year.
- Who is the largest funder of TETRA STRING QUARTET?
- KAY HARDESTY LOGAN FOUNDATION is the largest funder on record, with $30,000 in grants. The full list of funders is on this page.
- How can an organization like TETRA STRING QUARTET 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 Tetra String Quartet →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), and the filings of 5 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