PRESTON CASTLE FOUNDATION

EIN: 680391302 501(c)(3) Unknown

IONE, CA

Total Revenue
$454,255
Total Expenses
$367,314
Total Assets
$4,121,354
Net Assets
$4,117,387
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Financial Vulnerability Assessment (Tuckman-Chang)

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Financial Trends

Organization Details

Formation Year
2001
Legal Domicile
CA
Principal Officer
AARON PLUNK
Phone
2092563632
Tax Period
2025-01-01 to 2025-12-31

PRESTON CASTLE FOUNDATION, founded in 2001, is a small nonprofit in the Unknown sector that reported $454K in total revenue in fiscal year 2025. Revenue decreased 10% compared to the prior year. The organization ran a surplus of $87K, a strong 19% operating margin.

Mission

THE PRESTON CASTLE FOUNDATION IS DEDICATED TO THE PRESERVATION, REHABILITATION, AND UTILIZATION OF THE PRESTON CASTLE HISTORICAL SITE.

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Trantor Score

Financial Health Score (300–850) · Liquidity · Solvency · Sustainability · Efficiency

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Liquidity (40%) • Solvency (30%) • Sustainability (20%) • Efficiency (10%)

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Financial Overview (2025)

Revenue Breakdown

Contributions & Grants $33,835
Program Service Revenue $397,626
Investment Income $2,480
Other Revenue $20,314
TOTAL REVENUE $454,255

Expense Breakdown

Grants Paid $0
Salaries & Benefits $44,288
Fundraising Expenses $1,880
Program Expenses $292,417
Other Expenses $323,026
TOTAL EXPENSES $367,314

Year-over-Year Comparison

2025 2024 Change
Revenue $454,255 $506,372 -0.1%
Expenses $367,314 $302,061 +0.2%
Net Income $86,941 $204,311 -0.6%
Key Indicators
Grants to Organizations Grants to Individuals Lobbying Political Activity Foreign Activities Donor Advised Fund Schedule B Required
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Financial Health Indicators

Comprehensive financial analysis: Altman Z-Score, liquidity, solvency, sustainability, efficiency, and growth metrics

Financial Distress Indicator

Liquidity & Cash Position

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Altman Z-Score • Liquidity Ratios • Solvency Analysis • Growth Indicators • Efficiency Metrics

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Governance

Voting Members
13
Independent Members
13
Employees
1
Volunteers
200

Governance Policies

Conflict of Interest Policy
Whistleblower Policy
Document Retention Policy

Special Practices & Reported Activities

Operated a School
Operated a Hospital
Provided First Class Travel
Reported Conflict of Interest
Reported Asset Diversion
Excess Benefit Transaction
Made Political Expenditures
Engaged in Lobbying
Operated Donor Advised Fund
Maintained Art Collections
Filed Form 720

Compensation of Officers, Directors & Key Employees

Total Officers
3
$0
Total Directors
5
$0
Key Employees
0
$0
Highest Compensated
0
reported
Name Title Hours/Week Role Reportable Comp Other Comp Total
ROD BURTON DIRECTOR 15.00
Director
$0 $0 $0
SYBIL GRIFFTH DIRECTOR 15.00
Director
$0 $0 $0
DONNA MUNSON DIRECTOR 15.00
Director
$0 $0 $0
DAVID BARNES DIRECTOR 15.00
Director
$0 $0 $0
ANITA THOMAS DIRECTOR 15.00
Director
$0 $0 $0
KARL KNOBELAUCH SECRETARY TREASURER 20.00
Officer
$0 $0 $0
JIM BENNETT VICE PRESIDENT 20.00
Officer
$0 $0 $0
AARON PLUNK PRESIDENT 20.00
Officer
$0 $0 $0
Note: Compensation data is self-reported by the organization on their Form 990. "Reportable Comp" includes salary, bonuses, and other reportable compensation from the organization and related organizations. "Other Comp" includes benefits, deferred compensation, and non-taxable benefits.

Historical Data

Year Revenue Expenses Assets Net Income
2025 $454,255 $367,314 $4,121,354 $86,941
2024 $506,372 $302,061 $4,034,314 $204,311
2023 $521,853 $302,224 $3,829,137 $219,629
2022 $505,774 $300,552 $3,609,504 $205,222
2021 $443,288 $230,307 $3,404,780 $212,981
2020 $24,523 $165,102 $3,189,775 $-140,579
2019 $380,421 $258,443 $3,331,933 $121,978
2018 $379,718 $239,321 $3,211,953 $140,397
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