# LEON LOWENSTEIN FOUNDATION INC

LEON LOWENSTEIN FOUNDATION INC is a Private Foundation based in NEW HAVEN, United States.

## Overview

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

## About

LEON LOWENSTEIN FOUNDATION INC is listed by the Internal Revenue Service as a private grantmaking foundation exempt under Section 501(c)(3), with employer identification number 13-6015951. The IRS filing address is in NEW HAVEN, CT, United States. For the tax period ending December 2025, the IRS Exempt Organizations Business Master File lists year-end book assets of USD 218,451,414 and an IRS-computed Income Amount of USD 13,764,022. 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 December 1942. These tax-filing amounts are not assets under management or net profit.

## Questions

### What is LEON LOWENSTEIN FOUNDATION INC?

The IRS lists LEON LOWENSTEIN FOUNDATION INC as a private grantmaking foundation exempt under Section 501(c)(3), with EIN 13-6015951.

### What filing locality does the IRS record for LEON LOWENSTEIN FOUNDATION INC?

The IRS filing address is in NEW HAVEN, CT, United States.

### What book assets does the IRS report for LEON LOWENSTEIN FOUNDATION INC?

For the tax period ending December 2025, the IRS lists year-end book assets of USD 218,451,414.

### What does the IRS Income Amount for LEON LOWENSTEIN FOUNDATION INC represent?

For the tax period ending December 2025, the IRS-computed Income Amount is USD 13,764,022. 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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