Mission
THE SCHOOL PROVIDES EDUCATIONAL SERVICES USING MONTESSORI TEACHING METHODS. THE SCHOOL PROVIDES THESE SERVICES THROUGH THE NINTH GRADE. PRESCHOOL AND SUMMER SCHOOL PROGRAMS ARE ALSO PROVIDED.
Public Charity
KEYSTONE MONTESSORI CHARTER SCHOOL
Based in PHOENIX, AZ, KEYSTONE MONTESSORI CHARTER SCHOOL operates as a Public Charity. The organization reported $4.9M in revenue, $4.8M in expenses, $4.7M in total assets for fiscal year 2025. Imperigo tracks 16 reported grant relationships connected to this organization totaling approximately $368K.
EIN: 860941637
PHOENIX, AZ
Charter Schools
NTEE: B29
Latest filing: 2025
Total Revenue$4.9M
Total Expenses$4.8M
Total Assets$4.7M
Grant Records16
Funding Total$368K
Filing Years2021–2025
Where $100 goes at Keystone Montessori Charter School
How Keystone Montessori Charter School divides every $100 it spends, from its own Form 990 filings, averaged across 9 years.
$87
Programs
the work itself
$12
Management
running the organization
$1
Fundraising
raising the next dollar
Inside the $87 for programs
$87
The school provides educational services using montessori teaching methods to approximately 310 students
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
GENERAL SUPPORT
$56,163
GENERAL SUPPORT
$56,163
THIS AWARD IS DESIGNATED FOR GENERAL SUPPORT
$12,000
GENERAL SUPPORT
$28,121
GENERAL SUPPORT
$10,000
Showing up to 5 of 16 total records — full history available with membership.
Officers & Directors
DIRECTOR/LEA
Blanca Villalobos
PRESIDENT
Jessica Jarrett
DIRECTOR
Katie Cole
HEAD OF SCHO
Laura Hertzler
DIRECTOR
Stacy Burnett
VICE PRESIDE
Tricia Fuller
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $4.9M | $4.8M | $4.7M |
| 2024 | $4.2M | $4.4M | $4.7M |
| 2023 | $4.8M | $4.3M | $5.0M |
| 2022 | $3.9M | $3.8M | $4.7M |
| 2021 | $3.8M | $3.5M | $4.9M |
Between 2021 and 2025, reported annual revenue grew from $3.8M to $4.9M (+31%), with total assets most recently reported at $4.7M.
Interactive year-over-year charts and full filing details available with membership.