# WASHINGTON RESEARCH FOUNDATION

WASHINGTON RESEARCH FOUNDATION is a Private Foundation based in SEATTLE, United States.

## Overview

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

## About

WASHINGTON RESEARCH FOUNDATION is listed by the Internal Revenue Service as a private grantmaking foundation exempt under Section 501(c)(3), with employer identification number 46-4105873. The IRS filing address is in SEATTLE, WA, United States. For the tax period ending June 2025, the IRS Exempt Organizations Business Master File lists year-end book assets of USD 341,201,449 and an IRS-computed Income Amount of USD 57,587,952. For private foundations, this extract field combines total revenue with specified cost-of-goods and cost-basis amounts from Form 990-PF. The IRS ruling date on file is August 2014. These tax-filing amounts are not assets under management or net profit.

## Questions

### What is WASHINGTON RESEARCH FOUNDATION?

The IRS lists WASHINGTON RESEARCH FOUNDATION as a private grantmaking foundation exempt under Section 501(c)(3), with EIN 46-4105873.

### What filing locality does the IRS record for WASHINGTON RESEARCH FOUNDATION?

The IRS filing address is in SEATTLE, WA, United States.

### What book assets does the IRS report for WASHINGTON RESEARCH FOUNDATION?

For the tax period ending June 2025, the IRS lists year-end book assets of USD 341,201,449.

### What does the IRS Income Amount for WASHINGTON RESEARCH FOUNDATION represent?

For the tax period ending June 2025, the IRS-computed Income Amount is USD 57,587,952. 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: 2026-10-15T13:09:07.723Z

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