California · Nonprofit
PS Science
PS Science (California) receives grants from 48 organizations whose IRS filings report $1,754,021 to it, the largest being THE AHMANSON FOUNDATION ($195,500). 28 of them have funded it in more than one year.
- Revenue FY2025
- $1.0M
- Funders on record
- 48
- Grants received
- $1.8M
- Net assets
- $553k
What PS Science does
Mission
The great minds of tomorrow are in elementary schools everywhere, but science isnot. PS Science brings to elementary classrooms and program sites inspiring lessons that cultivate a deep understanding of the world and grow students and teachers who are confident and inspired by science.
As stated on its FY2025 Form 990.
Programs
Enrichment programs:in the 2024-25 year PS Science continued to increase the number and diversity of out-of-school time enrichment stem programs provided. All PS Science enrichment programs are provided at no cost to students at schools, community centers, libraries, and parks.we also provided family science nights programs at several schools, and participated in community stem events around los angeles county.through a grant from the ppg foundation, we were able to run year-long stem programs at three rec and park centers in the sylmar area, and at several la city libraries. PS Science received funding through great public schools now to provide summer enrichment stem classes to students at 8 lausd schools. PS Science also provided weekly summer stem programs for kids at inglewood parks summer camp, la city rec & park camps, the girls club la, 4 freedom school sites, the al wooten jr. Youth center, and several charter schools.finally, three sessions of the PS Science s-team rangers camp were run in june and july 2024. Two sessions were held in-person at crossroads school in santa monica for 50 4th and 5th grade students. The two week s-team rangers camp allowed students to…
$428,942 spent$237,699 earned by the program60% of program spendingClassroom program:during the 2024-25 school year, PS Science worked with 210 classrooms around los angeles assisting elementary classroom teachers in delivering hands-on, engaging stem lessons to their students throughout the school year. We also continued supporting teachers in the use of their new district provided science curricula; helping to ensure that the investment made in the purchase of these new instructional materials would not go to waste.
$285,962 spent$158,466 earned by the program40% of program spending
The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $714,904.
The organization over time
Each line starts at 100 in 2018, so what you read is the shape rather than the size: 150 means half as much again as 2018, 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 $476k to $827k (+74%).
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: 2021 7% · 2022 8% · 2023 1% · 2024 2% · 2025 1%. Grants only. Government contracts and fees sit inside program revenue.
60% of PS Science’s revenue is contributions — more donation-reliant than the typical peer (48% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 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.
Board chair
Alex Klyce
BD Pres/Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 5 funders to 19 funders, grant income rose $37k → $339k.
11 of 48 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 21% 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 PS Science’s funders (the co-funder graph). Top 30 of 48 funders by total. 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
PS Science has a broad base — no single funder exceeds 11% of grant income, and it takes 8 funders to reach half.
the vertical line marks half of all grant income — 8 funders to its left
38% 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 PS Science.
Largest funder’s share by year: 2017 27% · 2018 37% · 2019 38% · 2020 16% · 2021 24% · 2022 28% · 2023 22% — 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.
How long its funders stay
36% of PS Science's funders are still giving 3 years after their first grant; 58% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
83% of PS Science's grant income comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $365k arriving through sponsors registered in 8 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
PS Science runs a healthier operating margin than half of the 9,398 education nonprofits its size.
this organization peer median middle 50% of peers· 9,398 education nonprofits $1M–$10M, FY2025
Organizations like PS Science
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
76% of spending goes to programs.
Governance
Public support
85%
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 PS Science: 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 PS Science?
- PS Science (California) receives grants from 48 organizations whose IRS filings report $1,754,021 to it, the largest being THE AHMANSON FOUNDATION ($195,500). 28 of them have funded it in more than one year.
- How many funders does PS Science have?
- IRS filings report 48 organizations giving $1,754,021 in grants to PS Science, 28 of which have funded it in more than one year.
- Who is the largest funder of PS Science?
- THE AHMANSON FOUNDATION is the largest funder on record, with $195,500 in grants. The full list of funders is on this page.
- How can an organization like PS Science 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 PS Science →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2018–2025), and the filings of 48 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