Massachusetts · Nonprofit
FOSTERS POND CORPORATION
FOSTERS POND CORPORATION (Massachusetts) receives grants from 3 organizations whose IRS filings report $116,838 to it, the largest being Boston Foundation Inc ($98,000). 3 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $22k
- Funders on record
- 3
- Grants received
- $117k
- Net assets
- $254k
What Fosters Pond Corporation does
Mission
Environmental Protection.
As stated on its FY2025 Form 990-EZ.
Programs
Foster's Pond Weed Control Program: Control of invasive weeds and toxic blue-green algae in 120-acre Foster's Pond, a Great Pond owned by the Commonwealth of Massachusetts and visited by an estimated 5,000 people annually. Following our 2024 treatment of 42 acres to control suffocating mats of fanwort, a persistent invasive weed which once dominated Foster's Pond, 2025 saw virtually no remaining infestations. However, an unusually warm season which led to the closure of numerous lakes throughout Massachusetts required us to undertake unprecedented rounds of sampling and lab testing to detect blue-green algae and conduct timely treatments, keeping Foster's Pond open to the public throughout the summer. The FPC continued our regimen of comprehensive vegetation surveys to monitor the presence of invasive weeds and ensure a timely response to keep the Pond biologically diverse.
$12,896 spent87% of program spendingCommunity Building:We seek to build a sense of community among residents who live on the Pond, neighbors in Andover and Wilmington who frequent the Pond, and visitors from further away who come to explore this iconic resource. Our program of community building has two components: in-person public events and web-based public information. The aim is to inform the wider community about the ecology and the history of the Pond, what it takes to preserve its fragile ecosystem, and the opportunities for public access. The web site includes such information as our ground-breaking Watershed-Based Plan for reducing nutrient-laden storm run-off throughout the 1.5-square-mile Foster's Pond watershed. The web site also provides a guide to the Pond, describing each of the public reservations, complete with pictures, maps, and directions to public parking. The site is routinely updated to reflect FPC activities and provide notice of upcoming weed treatments, community events, and Pond-related news.
$1,745 spent12% of program spendingFoster's Pond Dam Maintenance: Maintenance and repair of the historic 165-year-old Foster's Pond Dam is undertaken almost exclusively by volunteers. The Dam, constructed in the 1850s, enlarged the Pond from 50 acres to today's 120 acres. The FPC maintains the "pocket park" at the Dam, affording public access for passive enjoyment and aquatic exploration of Foster's Pond. An estimated 1000 people from Andover and surrounding towns make use of this park from April to November. It provides the primary access by which members of the public can launch a canoe, kayak, or electric-powered fishing boat directly into Foster's Pond. In 2025, we engaged in routine maintenance, with volunteer labor, to keep the Dam in good condition.
$110 spent1% of program spendingLand Preservation and Public Access: The FPC maintains a wooded 12-acre reservation located to the southwest of the Pond. The FPC land, which includes four acres we acquired in 2023, abuts a 47-acre shoreline reservation owned by the Town of Andover. The FPC land provides public parking and access to the Pond for bird-watchers, hikers and cross-country skiers. This FPC reservation overlays the border between the Towns of Andover and Wilmington, narrowing the gap between a 225-acre expanse of protected land on the shores of the Pond and Wilmington's nearby 154-acre Town Forest. The FPC also maintains a small park at the Foster's Pond Dam, the main public access for hundreds of visitors seeking to launch canoes or kayaks into the Pond. Routine land maintenance activities are undertaken primarily by volunteers, supplemented by contractors.
$0 spent0% of program spending
The 4 programs described on its FY2025 Form 990-EZ. Program spending in total: $14,751.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2022 to 2023, from $206k to $246k (+19%).
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.
99% of FOSTERS POND CORPORATION’s revenue is contributions — more donation-reliant than the typical peer (92% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 9 reported years ran a deficit.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $8k → $20k.
3 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 100% 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 FOSTERS POND CORPORATION’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
FOSTERS POND CORPORATION leans on a few funders — its largest provides 84% 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 FOSTERS POND CORPORATION.
Largest funder’s share by year: 2017 100% · 2018 100% · 2019 100% · 2020 100% · 2021 73% · 2022 100% · 2023 75% — 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
100% of FOSTERS POND CORPORATION's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Too little is directly attributable to place on a map.
Funder states come from each funder’s own filing. $117k arriving through sponsors registered in 3 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
FOSTERS POND CORPORATION runs a healthier operating margin than half of the 2,195 environment nonprofits its size.
this organization peer median middle 50% of peers· 2,195 environment nonprofits under $100k, FY2025
Organizations like FOSTERS POND CORPORATION
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
98%
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 FOSTERS POND CORPORATION: 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 FOSTERS POND CORPORATION?
- FOSTERS POND CORPORATION (Massachusetts) receives grants from 3 organizations whose IRS filings report $116,838 to it, the largest being Boston Foundation Inc ($98,000). 3 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does FOSTERS POND CORPORATION have?
- IRS filings report 3 organizations giving $116,838 in grants to FOSTERS POND CORPORATION, 3 of which have funded it in more than one year.
- Who is the largest funder of FOSTERS POND CORPORATION?
- Boston Foundation Inc is the largest funder on record, with $98,000 in grants. The full list of funders is on this page.
- How can an organization like FOSTERS POND CORPORATION 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 Fosters Pond →
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 3 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