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California · Nonprofit

HAYWARD AREA HISTORICAL SOCIETY

HAYWARD AREA HISTORICAL SOCIETY (California) receives grants from 5 organizations whose IRS filings report $95,965 to it, the largest being DONNA L AND EDWARD E MARTINS FOUNDATION ($47,560). 4 of them have funded it in more than one year.

Revenue FY2025
$772k
Funders on record
5
Grants received
$96k
Net assets
$7.2M
4/5 repeat funderspeak grant-dependency 4%
01What it does

What Hayward Area Historical Society does

Programs

  1. Discovery and dissemanation of knowledge about the history of hayward and eden township. Preservation of historic buildings and monuments and markers and other items of historic significance

    $0 spent
  2. Maintenance of a museum showcasing the history of the hayward area. Programming for school groups and other interested partes.

    $0 spent
  3. Assistance with the preservation of historic structures

    $0 spent

The 3 programs described on its FY2025 Form 990-PF.

02The organization over time

The organization over time

Each line starts at 100 in 2020, so what you read is the shape rather than the size: 150 means half as much again as 2020, 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.

100 = 20202020 Revenue 100 ($443k) Expenses 100 ($864k) Net assets 100 ($8.5M)2021 Revenue 169 ($747k) Expenses 84 ($725k) Net assets 99 ($8.5M)2022 Revenue 100 ($441k) Expenses 98 ($850k) Net assets 90 ($7.7M)2023 Revenue 115 ($509k) Expenses 114 ($981k) Net assets 90 ($7.7M)2024 Revenue 142 ($631k) Expenses 106 ($915k) Net assets 87 ($7.4M)2025 Revenue 174 ($772k) Expenses 105 ($910k) Net assets 84 ($7.2M)
202020212022202320242025
Revenue (174)Expenses (105)Net assets (84)Peer revenue range

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $10M to $9.5M (−7%).

$10M
$10M
$9.5M
$9.5M
$9.3M
$9.1M
202020212022202320242025
Total assetsTotal liabilities

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

Diane Curry

Executive director

As listed on its FY2025 Form 990-PF.

202020212022202320242025
Listed11121110108
Joined·+1+1+1+0+0
No longer listed·02202
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 1 funder to 2 funders, grant income fell $13k → $10k.

1 of 5 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 16% 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 HAYWARD AREA HISTORICAL SOCIETY’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

HAYWARD AREA HISTORICAL SOCIETY leans on a few funders — its largest provides 50% of grant income and the top three 80%; half comes from just 2 funders.

the vertical line marks half of all grant income — 2 funders to its left

30% 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 HAYWARD AREA HISTORICAL SOCIETY.

50%
largest funder
80%
top three
~3
effective funders

Largest funder’s share by year: 2017 100% · 2018 100% · 2019 83% · 2020 78% · 2021 72% · 2022 86% · 2023 90% — 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

91% of HAYWARD AREA HISTORICAL SOCIETY's grant income comes from California funders.

CA
MD

In-state vs out-of-state, by year

’17
’18
’19
’20
’21
’22
’23
California out of state home

Funder states come from each funder’s own filing. $15k 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.

04Its place in the field

Against its field

HAYWARD AREA HISTORICAL SOCIETY has grown faster than half of the 11,634 arts & culture nonprofits its size.

Revenue growth (annualized)12% · above the median

this organization peer median middle 50% of peers· 11,634 arts & culture nonprofits $100k–$1M, FY2025

Organizations like HAYWARD AREA HISTORICAL SOCIETY

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

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Screen this organization

A dated, signed PDF of the compliance screen for HAYWARD AREA HISTORICAL SOCIETY: 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.

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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 HAYWARD AREA HISTORICAL SOCIETY?
HAYWARD AREA HISTORICAL SOCIETY (California) receives grants from 5 organizations whose IRS filings report $95,965 to it, the largest being DONNA L AND EDWARD E MARTINS FOUNDATION ($47,560). 4 of them have funded it in more than one year.
How many funders does HAYWARD AREA HISTORICAL SOCIETY have?
IRS filings report 5 organizations giving $95,965 in grants to HAYWARD AREA HISTORICAL SOCIETY, 4 of which have funded it in more than one year.
Who is the largest funder of HAYWARD AREA HISTORICAL SOCIETY?
DONNA L AND EDWARD E MARTINS FOUNDATION is the largest funder on record, with $47,560 in grants. The full list of funders is on this page.
How can an organization like HAYWARD AREA HISTORICAL SOCIETY 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.

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2020–2025), 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