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Delaware · Nonprofit

WINDSOR FOUNDATION INC

WINDSOR FOUNDATION INC (Delaware) receives grants from 1 organization whose IRS filings report $4,000 to it, the largest being THE HENDERSON FAMILY FOUNDATION ($4,000). 0 of them have funded it in more than one year.

$230k
Revenue FY2025
1
Funders on record
$4k
Grants received
$221k
Net assets
0/1 repeat fundersgrants exceed reported revenue in one year

Against its field

WINDSOR FOUNDATION INC is better cushioned than half of the 3,857 philanthropy nonprofits its size.

Months of reserve15.5mo · above the median
Revenue growth (annualized)−1% · below the median

this organization peer median middle 50% of peers· 3,857 philanthropy nonprofits $100k–$1M, FY2025

Three funders worth looking at

Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.

See all 12 prospects and why each one surfaced →
01The organization over time

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.

100 = 20172017 Revenue 100 ($248k) Expenses 100 ($283k) Net assets 100 ($76k)2018 Revenue 102 ($252k) Expenses 91 ($258k) Net assets 92 ($70k)2019 Revenue 119 ($296k) Expenses 88 ($248k) Net assets 155 ($118k)2020 Revenue 277 ($686k) Expenses 91 ($256k) Net assets 719 ($548k)2021 Revenue 237 ($588k) Expenses 98 ($277k) Net assets 1126 ($859k)2022 Revenue 13 ($32k) Expenses 104 ($293k) Net assets 784 ($598k)2023 Revenue 0 ($41) Expenses 80 ($228k) Net assets 486 ($371k)2024 Revenue 1 ($3k) Expenses 75 ($211k) Net assets 213 ($162k)2025 Revenue 93 ($230k) Expenses 61 ($171k) Net assets 290 ($221k)
'17'18'19'20'21'22'23'24'25
Revenue (93)Expenses (61)Net assets (290)Peer revenue range
02Who funds it

Who funds it, year by year

Grant support over time, funder by funder — shade shows the grant size each year.

Funder
'23
total
funders
1

From the IRS filings of WINDSOR FOUNDATION INC’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

WINDSOR FOUNDATION INC draws 100% of its grant income from funders outside Delaware, across 1 state in all.

MA

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.

03Its place in the field

Funders to approach

Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first.

From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.

Organizations like WINDSOR FOUNDATION INC

Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of US filings — the closest peers, and often the clearest route to shared or prospective funders.

In Delaware

Nationally

04Profile & 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 WINDSOR FOUNDATION INC: 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.

A paid feature, included from the $75 plan up. Sign in to download.

Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. How the screen works · on the API as GET /api/screening/{ein}?format=pdf

Questions and answers

Who funds WINDSOR FOUNDATION INC?
WINDSOR FOUNDATION INC (Delaware) receives grants from 1 organization whose IRS filings report $4,000 to it, the largest being THE HENDERSON FAMILY FOUNDATION ($4,000). 0 of them have funded it in more than one year.
How many funders does WINDSOR FOUNDATION INC have?
IRS filings report 1 organization giving $4,000 in grants to WINDSOR FOUNDATION INC.
Who is the largest funder of WINDSOR FOUNDATION INC?
THE HENDERSON FAMILY FOUNDATION is the largest funder on record, with $4,000 in grants. The full list of funders is on this page.
How can an organization like WINDSOR FOUNDATION INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Delaware. 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 2017–2025), and the filings of 1funders 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 August 27, 2026. What this page cannot tell you · view filing