Massachusetts · Nonprofit
SUDBURY HISTORICAL SOCIETY INC
SUDBURY HISTORICAL SOCIETY INC (Massachusetts) receives grants from 11 organizations whose IRS filings report $383,863 to it, the largest being THE SUDBURY FOUNDATION ($340,000). 5 of them have funded it in more than one year.
- Revenue FY2025
- $100k
- Funders on record
- 11
- Grants received
- $384k
- Net assets
- $279k
What Sudbury Historical Society Inc does
Mission
The Sudbury Historical Society (SHS) is dedicated to bringing the rich history of the Sudbury Plantation into the lives and activities of the people of Sudbury. As a non-profit organization, the society depends on donations of time, money and artifacts from our members, citizens and businesses in Sudbury, as well as from people around the country who support our mission. In 2020, the Society moved next door to the Loring Parsonage, where it operates the new Sudbury History Center and Museum, which opened in July, 2021. As an organization, we: -Educate and interest the citizens of Sudbury in a finer public spirit, through understanding of the traditions and history of the town. -Collect, study and conserve artifacts and records relating to the history of Sudbury and its people. Provide public programs and events relevant to the local history of Sudbury. -Provide age appropriate educational materials, research and tours related to the town's history for the town's children and students.
As stated on its FY2025 Form 990-EZ.
Program
The Historical Society continues to connect local residents to the unique history of our community through various activities and programs conducted each month, including historical house tours, lectures and presentation of historical archives.
$5,911 spent100% of program spending
The program described on its FY2024 Form 990-EZ. Program spending in total: $5,911.
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 2023 to 2024, from $278k to $327k (+18%).
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.
92% of SUDBURY HISTORICAL SOCIETY INC’s revenue is contributions — more donation-reliant than the typical peer (64% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 4 reported years ran a deficit.
Leadership and staff
Chief executive
Rachael Robinson
Executive Director
As listed on its FY2024 Form 990-EZ.
Who funds it, year by year
2017 → 2023: the base narrowed from 6 funders to 2 funders, grant income fell $222k → $50k.
2 of 11 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 7% 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 SUDBURY HISTORICAL SOCIETY 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.
How concentrated its funding is
SUDBURY HISTORICAL SOCIETY INC leans on a few funders — its largest provides 89% of grant income and the top three 97%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2017 90% · 2018 100% · 2019 64% · 2020 83% · 2021 48% · 2022 99% · 2023 100% — growing more concentrated.
“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
11% of SUDBURY HISTORICAL SOCIETY INC's funders are still giving 3 years after their first grant; 45% 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
100% of SUDBURY HISTORICAL SOCIETY INC's grant income comes from Massachusetts funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $26k 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
SUDBURY HISTORICAL SOCIETY INC receives grants from 11 organizations whose IRS filings report $384k to it.
this organization peer median middle 50% of peers· 11,634 arts & culture nonprofits $100k–$1M, FY2025
Government funding SUDBURY HISTORICAL SOCIETY INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $3k on record.
- (PP) STATE AID/POL SUB$3k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like SUDBURY HISTORICAL SOCIETY INC
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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
81%
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 SUDBURY HISTORICAL SOCIETY 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.
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 SUDBURY HISTORICAL SOCIETY INC?
- SUDBURY HISTORICAL SOCIETY INC (Massachusetts) receives grants from 11 organizations whose IRS filings report $383,863 to it, the largest being THE SUDBURY FOUNDATION ($340,000). 5 of them have funded it in more than one year.
- How many funders does SUDBURY HISTORICAL SOCIETY INC have?
- IRS filings report 11 organizations giving $383,863 in grants to SUDBURY HISTORICAL SOCIETY INC, 5 of which have funded it in more than one year.
- Who is the largest funder of SUDBURY HISTORICAL SOCIETY INC?
- THE SUDBURY FOUNDATION is the largest funder on record, with $340,000 in grants. The full list of funders is on this page.
- How can an organization like SUDBURY HISTORICAL SOCIETY INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. 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 Sudbury Historical Society →
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 11 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