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Maine · Nonprofit

ROCKPORT LIBRARY FOUNDATION

ROCKPORT LIBRARY FOUNDATION (Maine) receives grants from 13 organizations whose IRS filings report $452,519 to it, the largest being The Thorne Cox Family Foundation ($264,467). 4 of them have funded it in more than one year.

$117k
Revenue FY2025
13
Funders on record
$453k
Grants received
$309k
Net assets
4/13 repeat funderspeak grant-dependency 55%

Against its field

ROCKPORT LIBRARY FOUNDATION runs a healthier operating margin than three-quarters of the 15,926 education nonprofits its size.

Operating margin55% · top quartile
Revenue growth (annualized)−31% · bottom quartile

this organization peer median middle 50% of peers· 15,926 education 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 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 = 20192019 Revenue 100 ($1.1M) Expenses 100 ($219k) Net assets 100 ($847k)2020 Revenue 82 ($873k) Expenses 417 ($915k) Net assets 95 ($805k)2021 Revenue 62 ($665k) Expenses 552 ($1.2M) Net assets 31 ($261k)2022 Revenue 12 ($126k) Expenses 98 ($214k) Net assets 20 ($173k)2023 Revenue 3 ($36k) Expenses 11 ($25k) Net assets 22 ($185k)2024 Revenue 10 ($106k) Expenses 21 ($47k) Net assets 29 ($244k)2025 Revenue 11 ($117k) Expenses 24 ($52k) Net assets 36 ($309k)
2019202020212022202320242025
Revenue (11)Expenses (24)Net assets (36)Peer revenue range

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.

2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

91% of ROCKPORT LIBRARY FOUNDATION’s revenue is contributions — more donation-reliant than the typical peer (58% for the typical peer).

This organization
Typical peer · 24,851 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 7 reported years ran a deficit.

$847k
19
$42k
20
$544k
21
$88k
22
$12k
23
$59k
24
$65k
25
9.7
months of
reserve
02Who funds it

Who funds it, year by year

2018 → 2023: the base held at 1 funder, grant income rose $15k → $20k.

4 of 13 of your funders are donor-advised or pass-through sponsors (tagged DAF)28% 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 ROCKPORT LIBRARY 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

ROCKPORT LIBRARY FOUNDATION leans on a few funders — its largest provides 58% of grant income and the top three 78%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

28% 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 ROCKPORT LIBRARY FOUNDATION.

58%
largest funder
78%
top three
~3
effective funders

Largest funder’s share by year: 2018 100% · 2019 57% · 2020 77% · 2021 41% · 2023 100%broadly stable.

“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

10% of ROCKPORT LIBRARY FOUNDATION's funders are still giving 3 years after their first grant; 31% give in more than one year at all.

first grant+1y+2y+3y+4y

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

ROCKPORT LIBRARY FOUNDATION draws 94% of its grant income from funders outside Maine, across 7 states in all.

ME
NY
MA
OH
MO
NC
TX

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

18
19
20
21
23
Maine out of state home

Funder states come from each funder’s own filing. $125k arriving through sponsors registered in 4 statesis 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.

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. Your 13 funders put you under-funded among the 400 organizations that share them.

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 ROCKPORT LIBRARY FOUNDATION

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 Maine

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 ROCKPORT LIBRARY 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.

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 ROCKPORT LIBRARY FOUNDATION?
ROCKPORT LIBRARY FOUNDATION (Maine) receives grants from 13 organizations whose IRS filings report $452,519 to it, the largest being The Thorne Cox Family Foundation ($264,467). 4 of them have funded it in more than one year.
How many funders does ROCKPORT LIBRARY FOUNDATION have?
IRS filings report 13 organizations giving $452,519 in grants to ROCKPORT LIBRARY FOUNDATION, 4 of which have funded it in more than one year.
Who is the largest funder of ROCKPORT LIBRARY FOUNDATION?
The Thorne Cox Family Foundation is the largest funder on record, with $264,467 in grants. The full list of funders is on this page.
How can an organization like ROCKPORT LIBRARY 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.

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), and the filings of 13funders 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