# Zief Family Foundation Inc

Zief Family Foundation Inc is a Private Foundation based in San Mateo, United States.

## Overview

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

## About

The IRS Exempt Organizations Business Master File snapshot retrieved on 2026-10-14 identifies Zief Family Foundation Inc as a private operating foundation exempt under Section 501(c)(3). Its Employer Identification Number is 94-1676472. Its reported mailing city is San Mateo, California, United States. For the tax period ending June 2025, the retained IRS record reports total assets of USD 12,132,229. Reported income for that tax period is USD 1,362,481. The IRS ruling year recorded in this snapshot is 1988. Total assets are balance-sheet assets, not assets under management. These are dated IRS records; they do not establish current finances or a present investment mandate.

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Updated: 2026-10-23T12:28:25Z

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