Denver, CO

DENVER MONTESSORI SOCIETY (doing business as Montessori School of Denver)

EIN 84-0536045

Education & Youth Development K-12 Schools Children & youth Low-income

Mission

We are a dynamic educational environment empowering students to use diverse knowledge and experiences to reach their full potential.

IRS-recognized 501(c)(3) school Contributions are tax-deductible

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About DENVER MONTESSORI SOCIETY (doing business as Montessori School of Denver)

Denver Montessori Society (doing business as Montessori School of Denver) is a nonprofit Montessori school founded in 1964 that operates a five-acre campus in Denver serving toddlers through 8th grade. The School enrolls nearly 350 students and emphasizes individualized, hands-on Montessori learning supported by a 90+ member faculty and campus features such as an Urban Farm and updated classrooms. The organization also operates Horizons at MSD, a tuition-free, six-week summer enrichment program for students who qualify for free or reduced-price lunch, and maintains accredited status through the American Montessori Society and the Association of Colorado Independent Schools. The EIN 84-0536045 has been confirmed against the organization's Form 990 filings and public nonprofit registries.

Notable achievements

National & State Accreditation

Maintains accreditation from the American Montessori Society and the Association of Colorado Independent Schools, reflecting adherence to Montessori and independent-school standards.

Horizons Tuition-Free Summer Program

Hosts Horizons at MSD, a tuition-free six-week summer enrichment program providing academic skill-building, bilingual instruction, meals, and social-emotional supports for low-income students.

Longstanding impact and campus development

Operating since 1964, the school serves ~350 students and has expanded campus resources (Urban Farm, updated classrooms, new playgrounds) to support experiential learning.

At a glance

Total assets: $16.2M
Annual revenue: $9.6M
Tax status: 501(c)(3)School
EIN: 84-0536045
Location: Denver, CO
Website: www.montessoridenver.org
On Mahalo since: September 2026

Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.

Recognition

Recognized locally in Denver education listings and features (including mentions as a top private elementary option) for its Montessori program and outcomes.

Charity Navigator profile and public filings show established governance and financial controls; public tax filings report program-expense ratios and audited financial statements.

Public Form 990 filings indicate substantial program spending (historical revenue around $7.9M with ~87% of expenses directed to program services in recent filings).

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