Charities United States Science & Technology Charles F Chapman School of Seamanship …
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Charles F Chapman School of Seamanship Inc

To meet the changing and expanding educational and training needs of professional mariners and other marine industry specialists as well as serious recreational boating for men and women

Charles F Chapman School Of

Science & Technology Stuart, FL EIN 591416396 · IRS Sign up to see website
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89
Integrity Assessment
Strong transparency
89/100 · methodology

About Charles F Chapman School of Seamanship Inc

No organisational description on file yet. The metadata below comes directly from the official registry.

Founded
Headquarters
Stuart, FL
Foundation type
School (170(b)(1)(A)(ii))
NTEE code
U21Z
IRS subsection
501(c)(03)
Ruling date

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1972

Mission

To meet the changing and expanding educational and training needs of professional mariners and other marine industry specialists as well as serious recreational boating for men and women

Focus areas & reach

· What they work on and where
Science & Technology · NTEE U21Z

How it stacks up against peers

· vs. 8 similar science & technology in United States
Program spending This charity: 0%
Peer average: 11%
CEO comp as % of revenue This charity: 5.30%
Peer average: 0.48%
Integrity Assessment This charity: 89
Peer average: 89

Red flags

· All clear
IRS revocation history
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Common questions

· Auto-generated from filings + methodology

Charles F Chapman School of Seamanship Inc is a registered science & technology nonprofit based in Stuart, FL, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1972 and has been operating for 54 years. Its EIN is 591416396. It has a GiveRadar Integrity Assessment of 89/100 (Strong transparency), indicating well-documented governance, financials, and contact details. The organization reports $3M in annual revenue. 64 officers and directors are publicly disclosed. No red flags have been detected.

Charles F Chapman School of Seamanship Inc has a GiveRadar Integrity Assessment of 89/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 89 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for science & technology charities in United States is 89/100.

Charles F Chapman School of Seamanship Inc is located in Stuart, FL, United States. The organization was established in 1972 and has been active for 54 years.

Based on official tax filings, Charles F Chapman School of Seamanship Inc has $3M in annual revenue. Its revenue is below the peer average of $14M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Charles F Chapman School of Seamanship Inc is classified as a Science & Technology organization, registered in United States. It operates as a School (170(b)(1)(A)(ii)). It has $3M in annual revenue. The organization has 64 disclosed officers and directors.

No red flags have been detected for Charles F Chapman School of Seamanship Inc. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

Charles F Chapman School of Seamanship Inc has a GiveRadar Integrity Assessment of 89/100 (Strong transparency) and no red flags have been detected, which suggests it is a well-documented organization. It is regulated by the IRS. Visit the Charles F Chapman School of Seamanship Inc profile on GiveRadar for full details before deciding. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

To meet the changing and expanding educational and training needs of professional mariners and other marine industry specialists as well as serious recreational boating for men and women Charles F Chapman School of Seamanship Inc is classified as a science & technology organization registered in United States. The organization was founded in 1972.

Among science & technology charities registered in United States: Charles F Chapman School of Seamanship Inc's GiveRadar Integrity Assessment of 89/100 is in line with the peer average of 89/100. Its annual revenue of $3M is below the peer average of $14M.

Yes, donations to Charles F Chapman School of Seamanship Inc are generally tax-deductible in the United States. Charles F Chapman School of Seamanship Inc is a 501(c)(3) tax-exempt organization. Its EIN is 591416396, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.

Verified against 4 official sources, last refreshed .

Annual revenue
$1M-$10M
0% to programs
Source: IRS 990 (FY2025) why this matters
Unlock exact figures

Filing history

6 years on file from IRS 990 (FY2025): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2025, FY2024, FY2023, FY2022, FY2021, FY2020.
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Taxes

Tax-deductibility for donors

Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Leadership

F
F Shields Mcmanus
President

Officers & trustees (23)

Source: Public filings

AL
Aleta S••••
BOARD MEMBER
BU
Butch B•••••
Director
CH
Charles C•••••••••
BOARD MEMBER
CH
Charles K W•••••
VICE PRESIDE
DA
Daniel D D••••
Director
F
F S•••••• M••••••
CHAIRMAN
F
F S•••••• M••••••
CHAIRMAN
JA
James A••••
Director
JA
James W A•••• I•
PRESIDENT
JE
Jennifer C••••• F••••
PAST PRESIDE
JE
Jennifer C F••••
President
JO
Joanne M F•••••
SECTY CORP ATTY
KA
Kathy P•••••
ACCOUNTANT
MI
Michael R K•••••
TREASURER
RO
Roger F F••••
VICE PRESIDENT
RU
Ruth P••••••••••••
BOARD MEMBER
SH
Shaun T P•••••• E••
SECTY CORP A
TH
Thomas C•••••
Director
TH
Thomas C S••••
BOARD MEMBER
TH
Thomas E D••••
BOARD MEMBER
TH
Thomas E W••••••••••
BOARD MEMBER
TO
Tom D••••
DEAN OF INSTRUCTION
VO
Volney P B••••• J•
BOARD MEMBER
Full names, contact details & compensation

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Latest news

From global news sources

No recent news coverage found

News coverage will appear here when articles mention this organization.

Activity timeline

Filings and press mentions, merged

Form filed
$2.8M revenue
FY2025
IRS_990
Form filed
$2.6M revenue
FY2024
IRS_990
Form filed
$2.2M revenue
FY2023
IRS_990
Form filed
$2.2M revenue
FY2022
IRS_990
Form filed
$2.1M revenue
FY2021
IRS_990
Form filed
$1.8M revenue
FY2020
IRS_990

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Peer charities

Other science & technology in United States, by integrity assessment

Charity Score Revenue Program %
Charles F Chapman School of Seamanship Inc This page 89 $2.8 million -
Bioinnovations Institute 89 $1.3 million 91%
Collaborative for Leadership in Ayres Sensory Integration 89 $1.8 million -
Blue Marble Space 89 $5.1 million -
Corrim Consortium for Research on Renewable Industrial Materials 89 $2.4 million -
Freshwater Society 89 $1.4 million 0%
Sigma Xi the Scientific Research Honor Society Inc 89 $4.9 million -
Mind Research Institute Inc 89 $5.7 million -
Science Communication Lab Inc 89 $2.2 million -

Sources and verification

Refreshed

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2025 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 64 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
May 27, 2026
Profile completeness
80%

What we don't know

Honest gaps - our score reflects transparency, not impact

Programs & projects
No named programs listed by the charity
Operating reach
Countries where programs run not specified
Programmatic detail
Specific cause areas not yet tagged

Methodology

GiveRadar combines public registry filings, ProPublica Nonprofit Explorer, Charity Navigator, GuideStar, and news archives into a single 0-100 integrity assessment. We don't take a cut of any donation, ever.

Read full methodology

Quick facts about Charles F Chapman School of Seamanship Inc

What is Charles F Chapman School of Seamanship Inc?
Charles F Chapman School of Seamanship Inc is a science & technology school (170(b)(1)(a)(ii)) based in Stuart, United States. To meet the changing and expanding educational and training needs of professional mariners and other marine industry specialists as well as serious recreational boating for men and women
When was Charles F Chapman School of Seamanship Inc founded?
Charles F Chapman School of Seamanship Inc was founded in 1972.
Who leads Charles F Chapman School of Seamanship Inc?
F Shields Mcmanus serves as President.
Where is Charles F Chapman School of Seamanship Inc located?
Headquartered in Stuart, United States.
What is Charles F Chapman School of Seamanship Inc's annual budget?
Annual revenue for fiscal year 2025 is approximately $1M-$10M. 0% of expenses go to program services.
Is Charles F Chapman School of Seamanship Inc trustworthy?
Charles F Chapman School of Seamanship Inc has a GiveRadar Integrity Assessment of 89 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Charles F Chapman School of Seamanship Inc's registration number?
IRS EIN: 591416396.
What is Charles F Chapman School of Seamanship Inc's website?
http://www.chapman.org