Charities United States Education Willow Hill School Inc
Willow Hill School Inc logo

Willow Hill School Inc

Willow hill school provides a supportive and individualized educational program for middle school and high school students who are capable of advancing along a strong academic curriculum, but …

Education Sudbury, MA EIN 042469268 · IRS Sign up to see website
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93
Integrity Assessment
Strong transparency
93/100 · methodology

About Willow Hill School Inc

Willow Hill School Inc is a education organization based in SUDBURY, United States. Annual revenue: $4.0 million. EIN: 042469268.

Founded
Headquarters
Sudbury, MA
Foundation type
School (170(b)(1)(A)(ii))
NTEE code
B28Z
IRS subsection
501(c)(03)
Ruling date
Size
medium

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1971

Mission

Willow hill school provides a supportive and individualized educational program for middle school and high school students who are capable of advancing along a strong academic curriculum, but have experienced frustration in earlier school settings. At willow hill school, students come to understand and appreciate their personal learning styles and develop the skills and habits that enable them to succeed as lifelong learners and responsible members of their community.

Focus areas & reach

· What they work on and where
📚 Education · NTEE B28Z
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.
SDG 4 SDG 4 · Quality Education Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all.

How it stacks up against peers

· vs. 8 similar education in United States
Program spending This charity: 89%
Peer average: 86%
CEO comp as % of revenue This charity: 6.64%
Peer average: 0.48%
Integrity Assessment This charity: 93
Peer average: 93

Red flags

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

Where every $1 goes

$0.89
Program expenses$0.89 ($4.2 million)
89% to programs beats the peer average (86%) and beats the Charity Navigator "highly efficient" threshold (75%).

Common questions

· Auto-generated from filings + methodology

Willow Hill School Inc is a registered education nonprofit based in Sudbury, MA, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1970 and has been operating for 56 years. Its EIN is 042469268. It has a GiveRadar Integrity Assessment of 93/100 (Strong transparency), indicating well-documented governance, financials, and contact details. The organization reports $5M in annual revenue. 34 officers and directors are publicly disclosed. No red flags have been detected.

Willow Hill School Inc has a GiveRadar Integrity Assessment of 93/100. 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 93 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 89% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for education charities in United States is 93/100.

Willow Hill School Inc is located in Sudbury, MA, United States. The organization was established in 1970 and has been active for 56 years.

Based on official tax filings, Willow Hill School Inc has $5M in annual revenue. It allocates 89% of expenses to programs and services. This is in line with the average of 86% for education charities in United States. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Willow Hill School Inc is classified as a Education organization, registered in United States. It operates as a School (170(b)(1)(A)(ii)). By size, it is categorized as a medium organization. It has $5M in annual revenue. The organization has 34 disclosed officers and directors.

No red flags have been detected for Willow Hill 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.

Willow Hill School Inc has a GiveRadar Integrity Assessment of 93/100 (Strong transparency) and no red flags have been detected, which suggests it is a well-documented organization. It is regulated by the IRS. 89% of expenses go to programs. The peer average is 86%. You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

Willow Hill School Inc is a education organization based in SUDBURY, United States. Annual revenue: $4.0 million. EIN: 042469268. Willow Hill School Inc is classified as a education organization registered in United States. The organization was founded in 1970.

Among education charities registered in United States: Willow Hill School Inc's GiveRadar Integrity Assessment of 93/100 is in line with the peer average of 93/100. It allocates 89% of expenses to programs, in line with the peer average of 86%. Its annual revenue of $5M is comparable to the peer average of $7M.

Yes, donations to Willow Hill School Inc are generally tax-deductible in the United States. Willow Hill School Inc is a 501(c)(3) tax-exempt organization. Its EIN is 042469268, 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
89% 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

MA
Marilyn G Reid
Head Of School

Officers & trustees (13)

Source: Public filings

DA
Daryl L•••
TRUSTEE
DA
David F•••••
TRUSTEE
DI
Diane H•••••••
TRUSTEE EMIR
JA
Jane G•••••
TRUSTEE
JA
Jane M G•••••
TRUSTEE
JE
Jean Y•••
TRUSTEE
JE
Jeffrey F J••••
TRUSTEE EMIR
JU
Julie L•• T••••
TRUSTEE EMIR
MA
Marilyn G R•••
HEAD OF SCHO
MA
Marion L E•••••
VICE CHAIR
PH
Philip A M••••
CHAIR
PH
Philip M••••
CHAIR
RH
Rhonda T•••••••••••
TRUSTEE
Full names, contact details & compensation

Free with an 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
$5.3M revenue
FY2025
IRS_990
Form filed
$4.9M revenue
FY2024
IRS_990
Form filed
$4.5M revenue
FY2023
IRS_990
Form filed
$4.0M revenue
FY2022
IRS_990
Form filed
$3.9M revenue
FY2021
IRS_990
Form filed
$3.6M revenue
FY2020
IRS_990

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Peer charities

Other education in United States, by integrity assessment

Charity Score Revenue Program %
Willow Hill School Inc This page 93 $4.9 million 89%
Lowell Whiteman School 93 $8.0 million 90%
Norman Howard School Inc 93 $6.0 million 86%
Monroe Christian School Society 93 $2.4 million 87%
Cypress School of San Francisco 93 $5.5 million 85%
Childrens Own School Inc 93 $1.8 million 85%
Cardinal Community Academy 93 $2.9 million 80%
Gentry Academy 93 $4.9 million 90%
Newgate Education & Research Center Inc 93 $4.1 million 84%

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 - 34 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Profile completeness
90%

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

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 Willow Hill School Inc

What is Willow Hill School Inc?
Willow Hill School Inc is a education school (170(b)(1)(a)(ii)) based in Sudbury, United States. Willow Hill School Inc is a education organization based in SUDBURY, United States. Annual revenue: $4.0 million. EIN: 042469268.
When was Willow Hill School Inc founded?
Willow Hill School Inc was founded in 1970.
Who leads Willow Hill School Inc?
Marilyn G Reid serves as Head Of School.
Where is Willow Hill School Inc located?
Headquartered in Sudbury, United States.
What is Willow Hill School Inc's annual budget?
Annual revenue for fiscal year 2025 is approximately $1M-$10M. 89% of expenses go to program services.
Is Willow Hill School Inc trustworthy?
Willow Hill School Inc has a GiveRadar Integrity Assessment of 93 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 Willow Hill School Inc's registration number?
IRS EIN: 042469268.
What is Willow Hill School Inc's website?
http://www.willowhillschool.org