Maine · Nonprofit
Curtis Island Lighthouse Foundation
Curtis Island Lighthouse Foundation (Maine) receives grants from 2 organizations whose IRS filings report $21,000 to it, the largest being The Chicago Community Trust ($11,000). 1 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $250k
- Funders on record
- 2
- Grants received
- $21k
- Net assets
- $288k
What Curtis Island Lighthouse Foundation does
Mission
Raise Funds for restoration of the Curtis Island Light Station in Camden, Maine
As stated on its FY2025 Form 990.
Programs
Establish the Curtis Island Lighthouse Foundation (CILF) as a Maine non-profit organization and IRS 501(c)(3) Public Charity; begin raising funds to establish the foundation and to support a Historic Building Conditions Report, and development of a Historic Preservation Plan in 2024.
$2,451 spent20% of program spendingDuring 2025 the orgnaization continued planning, fundraising, engineering coordination, and preservation efforts for the historic Curtis Island Light Station. Activities included: - Continued implementation of recommendations contained in the Preservation Plan prepared by the Historic Building Architects - Coordination with the Town of Camden regarding future restoration activies - Evaluation of restoration priorities for the Light Tower, Keepers House, Barn, and Oil Shed - Planning for future capital imrpovements - Development of project budgets and construction sequencing - Providing a 25% match for a Light Tower Restoration Grant of $338,000 These activities furthered the organizations exempt purpose by preserving the nationally significant historic resources for future generations
$2,451 spent20% of program spendingPubic Education and Community Outreach The organization conducted extensive educational activities during 2025 to include: - Public Presentations - Website Development - Community Outreach - Donor Communication - Historical Research - Public Awareness Regarding Lighthouse Preservation Educational Efforts Emphasized: - Maritime History - Historic Preservation - Lighthouse Restoration - Community Stewardship - Volunteer Engagement
$2,451 spent20% of program spendingFundraising and Scholarship The organization successfully conducted fundraising activities supporting future restoration of the Curtis Island Light Station. Highlights include: - Broad community donor participation - Major gifts - Foundation grants - Individual charitable contributions - Continued development of relationships with preservation organizations and supporters
$2,451 spent20% of program spendingSignificant Accomplishments During 2025 - Continued collaboration with the Town of Camden - Advanced engineering and access planning - Expanded donor participation - Increased public awareness of preservation needs - Continued strategic planning for phased restoration - Strengthened organizational governance - Maintained its status as a publicy supported charitable organization
$2,451 spent20% of program spending
The 5 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $12,255.
The organization over time
Each line starts at 100 in 2023, so what you read is the shape rather than the size: 150 means half as much again as 2023, 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 2024 to 2025, from $116k to $288k (+147%).
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.
98% of Curtis Island Lighthouse Foundation’s revenue is contributions — more donation-reliant than the typical peer (87% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 3 reported years ran a deficit.
reserve
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 52% 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 Curtis Island Lighthouse Foundation’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
Curtis Island Lighthouse Foundation leans on a few funders — its largest provides 52% 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
52% 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 Curtis Island Lighthouse Foundation.
“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
52% of Curtis Island Lighthouse Foundation'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. Of the $10k that is directly attributable, 100% of it comes from funders outside Maine, across 1 state.
Funder states come from each funder’s own filing. $11k 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.
Against its field
Curtis Island Lighthouse Foundation runs a healthier operating margin than three-quarters of the 4,505 philanthropy nonprofits its size.
this organization peer median middle 50% of peers· 4,505 philanthropy nonprofits $100k–$1M, FY2025
Organizations like Curtis Island Lighthouse Foundation
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 Maine
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
18% of spending goes to programs.
Governance
Screen this organization
A dated, signed PDF of the compliance screen for Curtis Island Lighthouse Foundation: 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 Curtis Island Lighthouse Foundation?
- Curtis Island Lighthouse Foundation (Maine) receives grants from 2 organizations whose IRS filings report $21,000 to it, the largest being The Chicago Community Trust ($11,000). 1 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does Curtis Island Lighthouse Foundation have?
- IRS filings report 2 organizations giving $21,000 in grants to Curtis Island Lighthouse Foundation, 1 of which have funded it in more than one year.
- Who is the largest funder of Curtis Island Lighthouse Foundation?
- The Chicago Community Trust is the largest funder on record, with $11,000 in grants. The full list of funders is on this page.
- How can an organization like Curtis Island Lighthouse Foundation find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Maine. 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 Curtis Island Lighthouse →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2023–2025), 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 22, 2026. What this page cannot tell you · view filing