# Chaiken Family Foundation III

Chaiken Family Foundation III is a Private Foundation based in Tiburon, United States.

## Overview

- **Organization type:** Private Foundation
- **Headquarters:** Tiburon, United States
- **Region:** North America

## About

Chaiken Family Foundation III is listed by the IRS as a private nonoperating foundation exempt under Section 501(c)(3), with EIN 99-2905912. Its IRS filing address is in TIBURON, CA, United States. For the tax period ending June 2025, the IRS lists year-end book assets of USD 30,330,981 and an IRS-computed Income Amount of USD 28,169,981. These are dated filing extract amounts; book assets are not assets under management, and Income Amount is not net profit. For private foundations, the Income Amount extract field combines total revenue with specified cost-of-goods and cost-basis amounts from Form 990-PF. Its tax-exemption ruling dates to February 2025.

## Questions

### What is Chaiken Family Foundation III?

The IRS lists Chaiken Family Foundation III as a private nonoperating foundation exempt under Section 501(c)(3), with EIN 99-2905912.

### What filing locality does the IRS record for Chaiken Family Foundation III?

The IRS filing address is in TIBURON, CA, United States.

### What book assets does the IRS report for Chaiken Family Foundation III?

For the tax period ending June 2025, the IRS lists year-end book assets of USD 30,330,981.

### What does the IRS Income Amount for Chaiken Family Foundation III represent?

For the tax period ending June 2025, the IRS-computed Income Amount is USD 28,169,981. For private foundations, this extract field combines total revenue with specified cost-of-goods and cost-basis amounts from Form 990-PF.

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Updated: 2026-10-15T13:39:17.256Z

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