Data update history
February 4, 2024
Posted financials
Added Form 990 for fiscal year 2022
February 4, 2024
Updated personnel
Identified 1 new personnel
February 3, 2023
Posted financials
Added Form 990 for fiscal year 2021
September 24, 2021
Posted financials
Added Form 990EZ for fiscal year 2020
Nonprofit Types
SchoolsK-12 schoolsChildhood education nonprofitsCharities
Issues
Education
Characteristics
LobbyingState / local levelAuction fundraisersTax deductible donationsAccepts online donations
General information
- Address
- PO Box 4334
- Arcata, CA 95518
- County
- Humboldt County, CA
- Website URL
- madrivermontessori.com/
- Phone
- (707) 822-4027
IRS details
- EIN
- 94-2686480
- Fiscal year end
- June
- Taxreturn type
- Form 990
- Year formed
- 1986
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- B21: Nursery School, Early School Admissions, Kindergarten
- NAICS code, primary
- 611110: Elementary and Secondary Schools
- Parent/child status
- Independent
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