THE CHARLES F AND RUTH J KNIPPENBERG
Data sourced from IRS 990-PF public filings
Supports a variety of charitable causes through grants to nonprofit organizations, including educational institutions and community service groups, primarily in Arizona.
THE CHARLES F AND RUTH J KNIPPENBERG has 122 grants on file funding 49 organizations. Giving increased from $176,962 in 2024 to $214,777 in 2025. Reported assets: $3,049,445.
Total Assets
$3,049,445
Grants (Last Year)
$214,777
Total Grants on File
122
Recipients Funded
49
Giving History
| Year | Total Granted | Grants Made | Avg Grant |
|---|---|---|---|
| 2025 | $214,777 | 32 | $6,712 |
| 2024 | $176,962 | 23 | $7,694 |
| 2023 | $184,941 | 23 | $8,041 |
| 2022 | $194,592 | 27 | $7,207 |
| 2021 | $162,356 | 17 | $9,550 |
Top Grant Recipients
SCOTTSDALE, AZ
Arvada, CO
SCOTTSDALE, AZ
Notre Dame, IN
Notre Dame, IN
Notre Dame, IN
Notre Dame, IN
SCOTTSDALE, AZ
CEDAR KNOLLS, NJ
SCOTTSDALE, AZ
Showing top 10 of 122 grants on file.
Officers & Trustees
From 2025 IRS 990-PF filing (data available for 16 filing years)
REGINA ABOIA-VALL
TRUSTEE
PATRICIA ABOIA
TRUSTEE
JENNIFER PORTER
TRUSTEE
IRS Filing History
THE CHARLES F AND RUTH J KNIPPENBERG has IRS 990-PF filings on record for 16 years, spanning 2010 to 2025.
Frequently Asked Questions
Other Foundations in Arizona
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