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Wisconsin Montessori Society Inc

EIN 39-1016541 · Milwaukee, WI

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthFair69 out of 100GovernanceStrong100 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

MISSION: EDUCATING YOUNGSTERS TO BECOME AN INFORMED, COMMITTED, AND DIFFERENCE-MAKING GENERATION. VISION: EDUCATING CHILDREN TO GRADUATE AS INFORMED, ENGAGED, ETHICALLY MINDED CITIZENS OF THE WORLD THAT THEY INHERIT. PURPOSE: MILWAUKEE MONTESSORI SCHOOL IS A PRIVATE INDEPENDENT DAY SCHOOL DEDICATED TO EXPANDING THE HUMAN POTENTIAL OF ALL CHILDREN FOR THE PURPOSE OF EDUCATING THEM FOR A FREER, SAFER, WORLD. THE WORK OF OUR FACULTY AND STAFF ADVANCES OUR IDEAS ROOTED IN OUR BELIEF IN DEMOCRACY, PERSONAL FREEDOM, SOLIDARITY WITH THOSE AT THE PERIPHERY OF SOCIETY, THE WELL-BEING OF OUR PLANET, AND EDUCATING CHILDREN TO BECOME INFORMED, ENGAGED, ETHICALLY MINDED CITIZENS FOR THE WORLD THAT THEY WILL INHERIT.

Income
$7.5 million
Spending
$7.3 million
Spent on programs
76%
Reserves
5.4 months of spending
Largest source of income
fees for its services, 94%
Employees
119
Volunteers
25
Highest pay
$239,091, head of school

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Fair: 69 out of 100. Higher than 52% of charities in its peer group (education, $1m to $10m).

  • Reserves

    20 of 35

    Spendable reserves would cover 5.4 months of spending.

  • Debt

    16 of 20

    It owes 19% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 3% of income.

  • Income trend

    10 of 15

    Income fell 2% on the year before.

  • Spending floor

    8 of 15

    76% of spending went to programs and raising each dollar of donations cost 39 cents.

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 100 out of 100. Higher than 74% of charities in its peer group (education, $1m to $10m).

  • Independent board

    25 of 25

    7 of 7 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Pay set independently

    5 of 5

    Sets its chief executive's pay through independent review and comparison.

  • Independent check of accounts

    15 of 15

    Its accounts were audited by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (1)
  1. $5.5 million spent. MONTESSORI SCHOOL AND DAY CARE PROGRAM - TAUGHT AND COUNSELED CHILDREN OF ALL AGES IN THE COMMON CLASSICAL BRANCHES OF LEARNING: PHILOSOPHY, RHETORIC, MUSIC, LANGUAGE, THE ARTS AND SCIENCES. MONTESSORI SCHOOL SERVES APPROXIMATELY 400 CHILDREN EACH YEAR.

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated September 30, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated September 10, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending June 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since January 1964.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 7, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.