Public Charity

RIVER MONTESSORI CHARTER SCHOOL

RIVER MONTESSORI CHARTER SCHOOL is a nonprofit organization categorized as Public Charity based in PETALUMA, CA. Its most recent IRS filing (2024) reports revenue of $2.0M, expenses of $2.5M, total assets of $958K. Imperigo tracks 4 reported grant relationships connected to this organization totaling approximately $54K.

EIN: 270431277 PETALUMA, CA Latest filing: 2024
Total Revenue$2.0M
Total Expenses$2.5M
Total Assets$958K
Grant Records4
Funding Total$54K
Filing Years2020–2024

Mission

TO PROVIDE STUDENTS WITH A LEARNING CULTURE WHICH IS GROUNDED IN MONTESSORI PHILOSOPHY. THIS HISTORICALLY PROVEN EDUCATIONAL MODEL SUPPORTS THE WHOLE CHILD, CREATES LIFELONG LEARNERS, AND EDUCATES FOR PEACE.

Officers & Directors

SECRETARY Ginny Hautau
CHAIRPERSON Judith Matthews
EXECUTIVE DIRECTOR & SUPERINTENDENT Kelly Griffith Mannion
PARENT MEMBER Maude Agognon
COMMUNITY MEMBER Michelle Hammons
PARENT MEMBER Tency Chinchilla

Officer compensation and complete director data available with membership.

Top Grant Purposes

EDUCATION FOR LITERACY AND STEAM
$20,191 1 grant
EDUCATION FOR SOCIAL/EMOTIONAL EDUCATION
$18,500 2 grants
EDUCATION FOR LITERACY
$15,000 1 grant

Financial Trends

Year Revenue Expenses Assets
2024 $2.0M $2.5M $958K
2023 $2.2M $2.3M $1.9M
2022 $2.0M $2.2M $1.1M
2021 $1.9M $1.7M $1.4M
2020 $1.9M $1.8M $964K

Between 2020 and 2024, reported annual revenue grew from $1.9M to $2.0M (+4%), with total assets most recently reported at $958K.

Interactive year-over-year charts and full filing details available with membership.

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