California · Nonprofit
THE HISTORICAL SOCIETY OF POMONA VALLEY
THE HISTORICAL SOCIETY OF POMONA VALLEY (California) receives grants from 2 organizations whose IRS filings report $15,167 to it, the largest being LOCAL INITIATIVES SUPPORT CORPORATION ($15,000). 1 of them have funded it in more than one year.
- Revenue FY2024
- $1.1M
- Funders on record
- 2
- Grants received
- $15k
- Net assets
- $1.7M
What The Historical Society of Pomona Valley does
Mission
Our mission is to make the rich and diverse history of the pomona valley a meaningful part of people's lives. The pomona valley and the city of pomona in particular have a rich and interesting history, and The Historical Society of Pomona Valley is proud to share it with the public. We protect and preserve important historic sites,records, and artifacts and educate the public about the area's history.
As stated on its FY2024 Form 990.
Programs
Accomplishments for 2024 include 4th school tours for pusd and bonita unified, plus a smattering of students from san bernardino totaling 3,0000 students. Docent hours for this activity are included above. We conduct public tours at at least one of our sites each sunday.
$131,868 spent$51,544 earned by the program21% of program spendingE-bell fire recovery.we survived a fire at the east side of the building and did not lose the whole complex. At the end of september fire, we began 24/7 security to protect the building until electricity could be restored to the alarms. The community was generous with its time when helping us rescue artifacts, dry them out, conserve them and place these items in boxes. Volunteers helped us move out of parts of the building we had not planned on.
$44,992 spent$50,000 earned by the program7% of program spendingE-bell revival fund for repairs and maintenance of historic building. In september, 2024 we began a repair project that included painting and plaster repair in the ballroom, refinished floors, new stage curtains and new drapes and updating electrical and plumbing. We began work on a new foundation. This part project was spread over october to end of february, 2025.
$436,744 spent$930,930 earned by the program71% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $613,604.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $1.3M to $1.7M (+35%).
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: 2020 11% · 2024 86%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 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
2020 → 2023: the base narrowed from 2 funders to 1 funder, grant income fell $15k → $28.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 1% 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 THE HISTORICAL SOCIETY OF POMONA VALLEY’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
THE HISTORICAL SOCIETY OF POMONA VALLEY leans on a few funders — its largest provides 99% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
100% 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 THE HISTORICAL SOCIETY OF POMONA VALLEY.
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
THE HISTORICAL SOCIETY OF POMONA VALLEY draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. $167 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.
Organizations like THE HISTORICAL SOCIETY OF POMONA VALLEY
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
96% of spending goes to programs.
Governance
Public support
24%
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 THE HISTORICAL SOCIETY OF POMONA VALLEY: 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 HISTORICAL SOCIETY OF POMONA VALLEY?
- THE HISTORICAL SOCIETY OF POMONA VALLEY (California) receives grants from 2 organizations whose IRS filings report $15,167 to it, the largest being LOCAL INITIATIVES SUPPORT CORPORATION ($15,000). 1 of them have funded it in more than one year.
- How many funders does THE HISTORICAL SOCIETY OF POMONA VALLEY have?
- IRS filings report 2 organizations giving $15,167 in grants to THE HISTORICAL SOCIETY OF POMONA VALLEY, 1 of which have funded it in more than one year.
- Who is the largest funder of THE HISTORICAL SOCIETY OF POMONA VALLEY?
- LOCAL INITIATIVES SUPPORT CORPORATION is the largest funder on record, with $15,000 in grants. The full list of funders is on this page.
- How can an organization like THE HISTORICAL SOCIETY OF POMONA VALLEY 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 Historical Society of Pomona Valley →
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 2 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