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Nonprofit · EIN 22-1853399

PRINCETON MONTESSORI SOCIETY

Tax-exempt · PRINCETON, NJ 08540

Financials

$9.2M$9.1M2022$9.6M$8.9M2023$9.4M$9.2M2024
Revenue Expenses · by fiscal year end
Financials of PRINCETON MONTESSORI SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$9,402,228$9,217,686$184,542$9,417,872$9,064,618$353,254
June 30, 2024990$9,574,071$8,881,129$692,942$9,274,151$9,204,010$70,141
June 30, 2023990$9,227,057$9,112,110$114,947$8,307,117$8,929,918-$622,801
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$110,402
Program service revenue
$9,122,225
Investment income
$169,601
Other revenue
$0

Expenses

Grants and similar amounts paid
$1,206,682
Compensation of officers, directors and key employees
$385,748
Other salaries and wages
$4,003,129
Salaries, compensation and benefits (total)
$5,227,365
Professional fundraising fees
$0
Legal fees
$7,692
Accounting fees
$23,084
Occupancy
$177,786
Travel
$72,194
Depreciation
$533,644
Program services (functional)
$7,768,393
Management and general (functional)
$1,407,457
Fundraising (functional)
$41,836

Balance sheet and other

Total assets, start of year
$9,274,151
Total assets, end of year
$9,417,872
Total liabilities, end of year
$9,064,618
Net assets, end of year
$353,254
Land, buildings and equipment
$5,200,751
Publicly traded securities
$2,706,387
Net assets without donor restrictions
$298,754
Net assets with donor restrictions
$54,500
Gross receipts
$9,402,228
Employees
100
Volunteers
11
Year formed
1968
State of legal domicile
NJ

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
Andrea OBrianExecutive Director
Trustee or director, Officer
40$148,305$6,212
Betty ChinDirector of Finance
Officer
40$126,178$135
Dorothy PaulPCTE Director
Key employee
40$111,265$1,257
James ChambersBoard of Director
Trustee or director
2$0$0
Scott EcksteinBoard of Director
Trustee or director
2$0$0
Peter EgbertBoard of Director
Trustee or director
2$0$0
Rehana FarrellBoard of Director
Trustee or director
2$0$0
Beverly SmithBoard of Director
Trustee or director
2$0$0
Jennifer NiBoard of Director
Trustee or director
2$0$0
Caroline ScrivenBoard of Director
Trustee or director
2$0$0
Chance Van SciverBoard of Director
Trustee or director
2$0$0
Justin YiBoard of Director
Trustee or director
2$0$0
Rita ZetterbergBoard of Director
Trustee or director
2$0$0
Ankit VahiaBoard of Director
Trustee or director
2$0$0
990 for the year ended June 30, 2024: 13 people
NameTitleHours / weekCompensationOther / benefits
Andrea OBrianExecutive Director
Trustee or director, Officer
40$130,353$9,714
Betty ChinDirector of Finance
Officer
40$125,866$168
Dorothy PaulPCTE Director
Key employee
40$109,472$7,332
Chance Van SciverBoard of Director
Trustee or director
2$0$0
Caroline ScrivenBoard of Director
Trustee or director
2$0$0
Rita ZetterbergBoard of Director
Trustee or director
2$0$0
Justin YiBoard of Director
Trustee or director
2$0$0
Rehana FarrellBoard of Director
Trustee or director
2$0$0
Peter EgbertBoard of Director
Trustee or director
2$0$0
Scott EcksteinBoard of Director
Trustee or director
2$0$0
James ChambersBoard of Director
Trustee or director
2$0$0
Jennifer NiBoard of Director
Trustee or director
2$0$0
Kelly HartBoard of Director
Trustee or director
2$0$0
990 for the year ended June 30, 2023: 15 people
NameTitleHours / weekCompensation
Michelle MorrisonExecutive Director
Former
40$155,806
Andrea OBrianExecutive Director
Trustee or director, Officer
40$112,407
Dale SantosFormer Director of Finance
Former
40$63,801
Betty ChinDirector of Finance
Officer
40$54,075
Caroline ScrivenBoard of Director
Trustee or director
2$0
James ChambersBoard of Director
Trustee or director
2$0
Chance Van SciverBoard of Director
Trustee or director
2$0
Justin YiBoard of Director
Trustee or director
2$0
Rita ZetterbergBoard of Director
Trustee or director
2$0
Kelly HartBoard of Director
Trustee or director
2$0
Rehana FarrellBoard of Director
Trustee or director
2$0
Peter EgbertBoard of Director
Trustee or director
2$0
Jennifer NiBoard of Director
Trustee or director
2$0
Scott EcksteinBoard of Director
Trustee or director
2$0
Sep KamvarBoard of Director
Trustee or director
2$0

Address and contacts

Address (IRS master file)
487 CHERRY VALLEY RD, PRINCETON, NJ 08540-7916
In care of
% ANDREA OBRIAN
Principal officer (990 for 2024)
Andrea OBrian, 487 Cherry Valley Road, Princeton, NJ 08540
Signed the 990
ANDREA OBRIAN, Executive Director
Phone
(609) 924-4594
Return prepared by
Ketcham & Associates LLC

Mission

PMS is committed to nurturing each childs potential and passion for learning through the values and principles of the Montessori philosophy. Bold, curious, and resilient, our students grow to be independent in spirit, socially responsible, and confident in shaping their future.

990 for the year ended June 30, 2025

Program accomplishments

  • Princeton Montessori Society completed the third year of its three-year strategic plan, built on three pillars: -Programs: Deliver strong academics and student-focused learning grounded in Montessori principles. -People: Foster a diverse, inclusive community that values each individual and ensures respect and belonging for students, staff, and families - Prosperity: Apply our mission and values to sustain PMonts service to children and adult learners for generations.
    Expenses $7,768,393 · grants $1,206,682 · revenue $9,387,463

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
22-1853399
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1969
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B21Z)
Assets (IRS master file)
$9,417,872
Income (IRS master file)
$9,402,228

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$9,402,228$9,217,686$9,417,872XML
990June 2024$9,574,071$8,881,129$9,274,151XML
990June 2023$9,227,057$9,112,110$8,307,117XML
990June 2022$8,795,588$8,498,188$8,329,429IRS
990August 2021–––IRS
990August 2020–––IRS
990August 2019–––IRS
990August 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 22-1853399).

Questions about PRINCETON MONTESSORI SOCIETY

What is the EIN of PRINCETON MONTESSORI SOCIETY?
The employer identification number (EIN) of PRINCETON MONTESSORI SOCIETY is 22-1853399.
Is PRINCETON MONTESSORI SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1969.
Are donations to PRINCETON MONTESSORI SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does PRINCETON MONTESSORI SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of PRINCETON MONTESSORI SOCIETY due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did PRINCETON MONTESSORI SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of PRINCETON MONTESSORI SOCIETY?
The 990 for the year ended June 30, 2025 names Andrea OBrian.
Who are the officers and directors of PRINCETON MONTESSORI SOCIETY?
The 990 for the year ended June 30, 2025 lists 14 people; 3 received compensation from the organization, the highest $148,305 (Andrea OBrian, Executive Director).
How much revenue does PRINCETON MONTESSORI SOCIETY have?
On its 990 for the year ended June 30, 2025 it reported revenue of $9,402,228, expenses of $9,217,686 and total assets of $9,417,872 at year end.

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