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Winsor School Inc

THE WINSOR SCHOOL IS DEDICATED TO DEVELOPING THE INDIVIDUAL TALENTS OF ACADEMICALLY PROMISING AND MOTIVATED GIRLS IN GRADES FIVE THROUGH TWELVE.ITS RIGOROUS ACADEMIC CURRICULUM IS COMPLEMENTED BY STRONG …

The Winsor School

Education Boston, MA EIN: 042105842 (IRS) Sign up to see website
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77
Integrity Assessment
Strong transparency
77/100 · methodology

About Winsor School Inc

Winsor School Inc is a education organization based in BOSTON, United States. Annual revenue: $31.4 million. EIN: 042105842.

Founded
Headquarters
Boston, MA
Foundation type
School (170(b)(1)(A)(ii))
NTEE code
B200
IRS subsection
501(c)(03)
Ruling date
Size
large

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1972

Mission

The winsor school is dedicated to developing the individual talents of academically promising and motivated girls in grades five through twelve.its rigorous academic curriculum is complemented by strong offerings in the arts and physical education. The school helps students build a foundation of skills and knowledge to serve as a lifelong base for independent thinking, problem solving, creativity, and wise decision-making.winsor students are expected to pursue academic and personal excellence and to show concern and respect for others, for the community of the school, and for the world in which they live. They are encouraged by a dedicated and caring faculty to develop confidence in all areas of study, to express themselves effectively, to become leaders, and to face challenges with courage and integrity.committed to diversity in its student body and faculty and to an inclusive curriculum, the school fosters an appreciation of individual and cultural differences.

Focus areas & reach

· What they work on and where
📚 Education · NTEE B200
Cause tags
SDG alignment The 17 UN Sustainable Development Goals (SDGs) are the global agenda for ending poverty, protecting the planet, and ensuring prosperity by 2030. We tag each charity to the goals its work advances.

How it stacks up against peers

· vs. 8 similar education in United States
Program spending This charity: 76%
Peer average: 83%
CEO comp as % of revenue This charity: 1.36%
Peer average: 0.48%
Integrity Assessment This charity: 77
Peer average: 90

Concerns

· None found
No red flags found
Screened for IRS revocation history, Open investigations, Governance scandals, Related-party deals, Excessive exec comp.

Where every $1 goes

· FY2024 · IRS 990 (FY2024)
$0.76
Program$0.76
76% to programs beats the Charity Navigator "highly efficient" threshold (75%).

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

GiveRadar's verified records show Winsor School Inc with a complete profile, cross-referenced across 3 independent sources including the IRS.

  • Established in 1908, it is among the oldest education charities in the United States GiveRadar tracks. View this cohort
  • By reported annual revenue, it is larger than 94% of the 88,739 education charities in the United States with financial records on GiveRadar. See the filings
  • GiveRadar holds a more complete profile for this organization than for 82% of the 195,586 education charities in the United States it tracks, because GiveRadar has verified its financial disclosures and its governance. Most of those have little verified data on record yet. View this cohort
GiveRadar has verified
  • government registration
  • financial records (5 filed years)
  • disclosed leadership
  • a website
  • third-party accreditation
Not yet verified by GiveRadar
  • a contact email
  • a donation page
  • an owner-submitted profile claim

Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.

Common questions

· Auto-generated from filings + methodology

Winsor School Inc is a registered education nonprofit based in Boston, MA, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1908 and has been operating for 118 years. Its EIN is 042105842. According to GiveRadar's records, it holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. GiveRadar's Integrity Assessment for the organization is 77/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $41M in annual revenue. 112 officers and directors are publicly disclosed. No red flags have been detected.

Winsor School Inc's EIN (Employer Identification Number) is 042105842. This is the organization's IRS tax identification number; you can use it to verify tax-exempt status and to look up its Form 990 filings with the IRS.

Winsor School Inc has a GiveRadar Integrity Assessment of 77/100. 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 77 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 76% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for education charities in United States is 90/100.

Winsor School Inc is located in Boston, MA, United States. The organization was established in 1908 and has been active for 118 years. Its registered address is 103 Pilgrim Rd, United States.

Based on official tax filings, Winsor School Inc has $41M in annual revenue. It allocates 76% of expenses to programs and services. This is below the average of 83% for education charities in United States. Its revenue is significantly above the peer average of $7M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Winsor School Inc is classified as an Education organization, registered in United States. It operates as a School (170(b)(1)(A)(ii)). By size, it is categorized as a large organization. It has $41M in annual revenue. The organization has 112 disclosed officers and directors.

No red flags have been detected for Winsor School 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.

According to GiveRadar's records, Winsor School Inc holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. It is registered with the Internal Revenue Service (IRS). It reports that 76% of expenses go to programs (the peer average is 83%). GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.

Winsor School Inc is a education organization based in BOSTON, United States. Annual revenue: $31.4 million. EIN: 042105842. Winsor School Inc is classified as an education organization registered in United States. The organization was founded in 1908.

Among education charities registered in United States: It allocates 76% of expenses to programs, below the peer average of 83%. Its annual revenue of $41M is well above the peer average of $7M.

Yes, donations to Winsor School Inc are generally tax-deductible in the United States. Winsor School Inc is a 501(c)(3) tax-exempt organization. Its EIN is 042105842, 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.

Annual revenue
$10M-$100M
76% to programs
Source: IRS 990 (FY2024) why this matters
Unlock exact figures

Filing history

5 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: 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.

Staff & volunteers

From filings and published profiles

Employees
222

Leadership

From FY2024 filing

EL
Elizabeth M•••••
SENIOR CONTROLLER

Officers & trustees (25)

Source: Public filings

See full names, roles, and stories

25 officers and trustees on file - free with a GiveRadar account.

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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
$41.2M revenue
FY2024
IRS 990
Form filed
$39.8M revenue
FY2023
IRS 990
Form filed
$35.4M revenue
FY2022
IRS 990
Form filed
$31.4M revenue
FY2021
IRS 990
Form filed
$34.5M revenue
FY2020
IRS 990

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Cause areas in United States

How many charities work in each area, with this charity's area highlighted.

Human Services 322,679
Education this charity 195,586
Arts & Culture 133,128
Advocacy & Civil Rights 128,026
Religion 114,636
Health 98,862
Community Development 56,086
Youth Development 53,450
See all cause areas in United States

Most common causes in United States

Causes charities work on most, with this charity's causes ticked.

Community Development 235,146
Education 159,016
Religion 103,741
Arts & Culture 101,203
Human Rights 76,926
Health 65,250
Youth Development 47,775
Animal Welfare 32,425

Sources and verification

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2024 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 112 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Registry checked
Jun 6, 2026
Profile completeness
90%

What we know and don't know

Exactly which public data we hold on this charity. Our score reflects transparency, not impact.

On record · 10
  • Financial data · FY2024 on record
  • Named leadership · 112 officers on file
  • Executive pay · Disclosed
  • Government registration · Registered with an official registry
  • Mission statement · Published
  • Official website · On record
  • Headquarters address · On file
  • Direct contact · Email or phone published
  • Tax-deductibility · Verified
  • Founding date · 1908
Not available · 1
  • Programs & activities
    No named programs listed by the charity

Methodology

GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.

Read full methodology

Are you the owner or a board member?

If you represent this organization and want to correct or update its data, you can claim this listing to edit details yourself, or email [email protected] with the correct information. We review every request and respond within 30 days.

Quick facts about Winsor School Inc

What is Winsor School Inc?
Winsor School Inc is a education school (170(b)(1)(a)(ii)) based in Boston, United States. Winsor School Inc is a education organization based in BOSTON, United States. Annual revenue: $31.4 million. EIN: 042105842.
When was Winsor School Inc founded?
Winsor School Inc was founded in 1908.
Who leads Winsor School Inc?
Elizabeth Mcneil serves as SENIOR CONTROLLER.
Where is Winsor School Inc located?
Headquartered in Boston, MA, United States.
What is Winsor School Inc's annual budget?
Annual revenue for fiscal year 2024 is approximately $10M-$100M. 76% of expenses go to program services.
Is Winsor School Inc trustworthy?
Winsor School Inc has a GiveRadar Integrity Assessment of 77 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 Winsor School Inc's registration number?
IRS EIN: 042105842.
What is Winsor School Inc's website?
https://www.winsor.edu