Mission
TO PROVIDE A DIVERSE, COLLABORATIVE LEARNING COMMUNITY. THROUGH THE MONTESSORI METHOD, WE EMBRACE EACH CHILD'S UNIQUE POTENTIAL AND CULTIVATE A PASSION FOR DISCOVERY.
Public Charity
THACHER MONTESSORI SCHOOL INC
THACHER MONTESSORI SCHOOL INC is a nonprofit organization categorized as Public Charity based in MILTON, MA. Its most recent IRS filing (2025) reports revenue of $3.4M, expenses of $3.3M, total assets of $6.7M. Imperigo tracks 12 reported grant relationships connected to this organization totaling approximately $415K.
EIN: 042499107
MILTON, MA
Latest filing: 2025
Total Revenue$3.4M
Total Expenses$3.3M
Total Assets$6.7M
Grant Records12
Funding Total$415K
Filing Years2021–2025
Where $100 goes at Thacher Montessori School Inc
How Thacher Montessori School Inc divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$71
Programs
the work itself
$28
Management
running the organization
$1
Fundraising
raising the next dollar
Inside the $71 for programs
$71
We empower children to achieve academic excellence and become confident, compassionate, and proactive members of the world community
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
EDUCATIONAL FINANCIAL ASSISTANCE
$85,300
For grant recipient's exempt purposes
$10,100
EDUCATIONAL FINANCIAL ASSISTANCE
$57,500
For grant recipient's exempt purposes
$20,000
GENERAL SUPPORT
$5,030
Showing up to 5 of 12 total records — full history available with membership.
Officers & Directors
CHAIR
Carl Treichel
FORMER HEAD
Deba Dunn
TRUSTEE
Elizabeth Lazar
CLERK
Jeremy Angoff
TRUSTEE
Michelle Brito
HEAD OF SCHO
Michelle Seyller
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $3.4M | $3.3M | $6.7M |
| 2024 | $3.5M | $4.2M | $6.6M |
| 2023 | $4.5M | $3.5M | $6.6M |
| 2022 | $3.5M | $3.3M | $5.9M |
| 2021 | $3.1M | $3.1M | $6.0M |
Between 2021 and 2025, reported annual revenue grew from $3.1M to $3.4M (+11%), with total assets most recently reported at $6.7M.
Interactive year-over-year charts and full filing details available with membership.