Ariowitsch Family Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like Ariowitsch Family Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 13-6279580

Foundation Overview

Based in Mill Valley, CA, Ariowitsch Family Foundation has awarded 51 grants totaling $291,000 to organizations in California, Colorado and 3 other states across the US. Individual grants range from $500 to $32,500, with a median award of $2,000.

Latest Tax Year
2023
Total Giving (all years)
$291,000
Total Assets
$996,466
Median Grant (all grants)
$2,000

Latest Form 990-PF Snapshot

Total Grants
8
Median Grant
$1,500
% No Significant Change
0% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: February 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Closed Network: 13%

1 of 8 recipients (13%) were new grantees. Foundation maintains tight relationships with established partners. New applicants rarely succeed without insider connections.

Geographic Focus
California

65% of grants are awarded in California, with additional funding distributed across 4 other locations. The foundation balances regional focus with broader geographic diversity. Within California, funding concentrates in San Francisco (21%), Berkeley (18%), Palm Desert (18%).

Funding Trajectory
0%

Stable funding levels with 0% change over 3 years indicate consistent grant-making capacity and predictable philanthropic resources. This stability suggests reliable ongoing funding opportunities.

Program Areas
Education + Environment

Dual focus on education (58%) and environment, indicating strategic concentration in complementary program areas.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into Ariowitsch Family Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
The Nature Conservancy $32,500 San Francisco, CA, US Conservation 2023
The Community Foundation $2,000 Boulder, CO, US Arts Education, Environment, Humanitarian 2023
Uc Berkeley Foundation $2,000 Berkeley, CA, US Education 2023
Washington University $1,000 St Louis, MO, US Education 2023
The Living Desert $10,000 Palm Desert, CA, US Education 2023
Nature Is Sacred $500 San Diego, CA, US Environmental 2023
Headlands Center For Arts $1,000 Sausalito, CA, US Education 2023
Drexel University $1,000 Philadelphia, PA, US Education 2023
The Nature Conservancy $26,000 San Francisco, CA, US Conservation 2022
The Community Foundation $2,000 Boulder, CO, US Arts Education, Environment, Humanitarian 2022
American Friends Of The Hebrew Univ $12,000 New York City, NY, US Scholarship 2022
Uc Berkeley Foundation $2,000 Berkeley, CA, US Education 2022
Washington University $1,000 St Louis, MO, US Education 2022
The Living Desert $1,000 Palm Desert, CA, US Education 2022
Nature Is Sacred $500 San Diego, CA, US Environmental 2022
Headlands Center For Arts $500 Sausalito, CA, US Education 2022
The Nature Conservancy $26,000 San Francisco, CA, US Conservation 2022
The Community Foundation $2,000 Boulder, CO, US Arts Education, Environment, Humanitarian 2022
American Friends Of The Hebrew Univ $12,000 New York City, NY, US Scholarship 2022
Uc Berkeley Foundation $2,000 Berkeley, CA, US Education 2022
Washington University $1,000 St Louis, MO, US Education 2022
The Living Desert $1,000 Palm Desert, CA, US Education 2022
Nature Is Sacred $500 San Diego, CA, US Environmental 2022
Headlands Center For Arts $500 Sausalito, CA, US Education 2022
The Nature Conservancy $26,000 San Francisco, CA, US Conservation 2022
The Community Foundation $2,000 Boulder, CO, US Arts Education, Environment, Humanitarian 2022
American Friends Of The Hebrew Univ $12,000 New York City, NY, US Scholarship 2022
Uc Berkeley Foundation $2,000 Berkeley, CA, US Education 2022
Washington University $1,000 St Louis, MO, US Education 2022
The Living Desert $1,000 Palm Desert, CA, US Education 2022
Nature Is Sacred $500 San Diego, CA, US Environmental 2022
Headlands Center For Arts $500 Sausalito, CA, US Education 2022
The Nature Conservancy $30,000 San Francisco, CA, US Conservation 2021
The Community Foundation $2,000 Boulder, CO, US Arts Education, Environment, Humanitarian 2021
American Friends Of The Hebrew Univ $15,000 New York City, NY, US Scholarship 2021
Uc Berkeley Foundation $2,500 Berkeley, CA, US Education 2021
Marin Mountessori School $1,000 Corte Madera, CA, US Education 2021
Washington University $1,000 St Louis, MO, US Education 2021
The Living Desert $1,000 Palm Desert, CA, US Education 2021
Nature Is Sacred $500 San Diego, CA, US Environmental 2021
Headlands Center For Arts $1,000 Sausalito, CA, US Education 2021
Rainforest Action Network $2,000 San Francisco, CA, US Environment 2021
The Nature Conservancy $26,500 San Francisco, CA, US Conservation 2020
The Community Foundation $2,000 Boulder, CO, US Arts Education, Environment 2020
American Friends Of The Hebrew Univ $13,500 New York City, NY, US Scholarship 2020
Uc Berkeley Foundation $2,000 Berkeley, CA, US Education 2020
Marin Mountessori School $2,000 Corte Madera, CA, US Education 2020
Washington University $1,000 St Louis, MO, US Education 2020
The Living Desert $1,000 Palm Desert, CA, US Education 2020
Nature Is Sacred $1,000 San Diego, CA, US Environmental 2020
Headlands Center For Arts $1,000 Sausalito, CA, US Education 2020

Foundations Similar to Ariowitsch Family Foundation

Discover 5 foundations with comparable assets ($992,046-$1,001,517), similar grant patterns, and geographic focus in CA that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 45-3994049 | 57 grants awarded
$996,076
(≈ Similar)
$2,160
median grant
Saratoga, CA
Same state
100%
Excellent match

EIN: 33-0872463 | 70 grants awarded
$999,349
(≈ Similar)
$2,500
median grant
Diamond Bar, CA
Same state
100%
Excellent match

EIN: 92-1742868 | 46 grants awarded
$993,066
(≈ Similar)
$3,000
median grant
Santa Cruz, CA
Same state
100%
Excellent match

EIN: 83-1854529 | 16 grants awarded
$992,046
(≈ Similar)
$3,518
median grant
Long Beach, CA
Same state
100%
Excellent match

EIN: 77-0491509 | 51 grants awarded
$1,001,517
(≈ Similar)
$3,000
median grant
Hollister, CA
Same state
100%
Excellent match

Contact Information

Official contact details for Ariowitsch Family Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 13-6279580
Website N/A
Address 150 MARLIN AVE Mill Valley, CA 94941-1311

Key People (4)

Board members, trustees, and key staff who oversee Ariowitsch Family Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

President & Ceo Tim Ariowitsch
Vice President Tanya Ariowitsch
Treasurer Melinda Ariowitsch
Secretary Ethan Ariowitsch

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for Ariowitsch Family Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated February 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.