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Florida · Nonprofit

NAPLES HISTORICAL SOCIETY INC

NAPLES HISTORICAL SOCIETY INC (Florida) receives grants from 47 organizations whose IRS filings report $1,563,994 to it, the largest being JAMES M SCHOONMAKER II FOUNDATION ($610,000). 24 of them have funded it in more than one year.

Revenue FY2025
$4.2M
Funders on record
47
Grants received
$1.6M
Net assets
$7.3M
24/47 repeat funderspeak grant-dependency 15%
01What it does

What Naples Historical Society Inc does

Mission

Naples historical society is dedicated to preserving naples history and heritage for the community and future generations to enjoy.

As stated on its FY2025 Form 990.

Program

  1. The society relies on preservation initiatives and educational programs to conduct its work to preserve naples history. These programs reach all age ranges as well as those who live in naples and visitors to naples. Education and preservation programs:+walking tours of naples historic district+christmas at palm cottage+tours of historic palm cottage+tours of smith exhibit hall+talk of the town presentations+garden side chickee chats+pupils at palm cottage+archival repository projectaccomplishments:+on-going restoration work on historic palm cottage+preparation and development of smith exhibit hall+meandering path created, and landscape placed for future grand opening of smith exhibit hall

    $5,422,038 spentof which $4,216,009 as grants$133,467 earned by the program
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $5,422,038.

02The 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.

100 = 20172017 Revenue 100 ($648k) Expenses 100 ($572k) Net assets 100 ($3.3M)2018 Revenue 215 ($1.4M) Expenses 109 ($623k) Net assets 124 ($4.0M)2019 Revenue 135 ($872k) Expenses 130 ($743k) Net assets 128 ($4.2M)2020 Revenue 140 ($905k) Expenses 132 ($757k) Net assets 132 ($4.3M)2021 Revenue 346 ($2.2M) Expenses 153 ($872k) Net assets 174 ($5.7M)2022 Revenue 383 ($2.5M) Expenses 170 ($975k) Net assets 221 ($7.2M)2023 Revenue 428 ($2.8M) Expenses 210 ($1.2M) Net assets 269 ($8.8M)2024 Revenue 153 ($989k) Expenses 202 ($1.2M) Net assets 265 ($8.7M)2025 Revenue 646 ($4.2M) Expenses 964 ($5.5M) Net assets 224 ($7.3M)
'17'18'19'20'21'22'23'24'25
Revenue (646)Expenses (964)Net assets (224)

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $4.4M to $8.7M (+97%).

$3.3M
$4.0M
$4.2M
$4.4M
$8.7M
$8.1M
$8.8M
$8.7M
$7.3M
'17'18'19'20'21'22'23'24'25
Total assetsTotal liabilities

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.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2021 3%. Grants only. Government contracts and fees sit inside program revenue.

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.

$77k
’17
$773k
’18
$130k
’19
$147k
’20
$1.4M
’21
$1.5M
’22
$1.6M
’23
−$168k
’24
−$1.3M
’25
0.4
months of
reserve

Leadership and staff

The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.

Board chair

Charlie Mueller

Chairman

As listed on its FY2025 Form 990.

'17'18'19'20'21'22'23'24'25
Listed121212111111111210
Joined·+0+3+0+3+2+0+1+0
No longer listed·03132002
03Who funds it

Who funds it, year by year

2017 → 2023: the base narrowed from 13 funders to 12 funders, grant income rose $33k → $322k.

6 of 47 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 14% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.

Left out of every figure on this page: $3.1M from one payer (the payer shares this organization's board, largest Naples Historical Society Foundation Inc). These are real filings, and they are not money NAPLES HISTORICAL SOCIETY INC raised.

From the IRS filings of NAPLES HISTORICAL SOCIETY INC’s funders (the co-funder graph). Top 30 of 47 funders by total. 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

NAPLES HISTORICAL SOCIETY INC leans on a few funders — its largest provides 39% of grant income and the top three 68%; half comes from just 2 funders.

the vertical line marks half of all grant income — 2 funders to its left

39%
largest funder
68%
top three
~5
effective funders

Largest funder’s share by year: 2017 31% · 2018 47% · 2019 40% · 2020 17% · 2021 73% · 2022 50% · 2023 31% — 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

45% of NAPLES HISTORICAL SOCIETY INC's funders are still giving 3 years after their first grant; 51% give in more than one year at all.

first grant+1y+2y+3y+4y+5y+6y

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

NAPLES HISTORICAL SOCIETY INC draws 87% of its grant income from funders outside Florida, across 13 states in all.

IL
WI
MI
NY
MA
IA
IN
OH
NJ
CT
CA
KS
FL

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

’17
’18
’19
’20
’21
’22
’23
Florida out of state home

Funder states come from each funder’s own filing. $212k arriving through sponsors registered in 6 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.

04Its place in the field

Government funding NAPLES HISTORICAL SOCIETY INC receives

Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $85 on record.

State$85
21
23
Top programs
  • REFUNDS - GENERAL $85

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 NAPLES 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 Florida

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

98% of spending goes to programs.

Program 98%Management 1%Fundraising 0%

Governance

9
board members
100%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990–Audited financials

Public support

66%

Share of support from the public (Schedule A) — the basis for its public-charity status.

Footprint & structure

Files a return copy in 1 state

FL

Part of a family of 1 related entity

  • Naples Historical Society Foundation · exempt

Screen this organization

A dated, signed PDF of the compliance screen for NAPLES 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.

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. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf

Questions and answers

Who funds NAPLES HISTORICAL SOCIETY INC?
NAPLES HISTORICAL SOCIETY INC (Florida) receives grants from 47 organizations whose IRS filings report $1,563,994 to it, the largest being JAMES M SCHOONMAKER II FOUNDATION ($610,000). 24 of them have funded it in more than one year.
How many funders does NAPLES HISTORICAL SOCIETY INC have?
IRS filings report 47 organizations giving $1,563,994 in grants to NAPLES HISTORICAL SOCIETY INC, 24 of which have funded it in more than one year.
Who is the largest funder of NAPLES HISTORICAL SOCIETY INC?
JAMES M SCHOONMAKER II FOUNDATION is the largest funder on record, with $610,000 in grants. The full list of funders is on this page.
How can an organization like NAPLES HISTORICAL SOCIETY INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. 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 47 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