# Center for Stable Isotope Research Inc

Center for Stable Isotope Research Inc is a Private Foundation based in Chicago, United States.

## Overview

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

## About

The IRS Exempt Organizations Business Master File snapshot retrieved on 2026-10-14 identifies Center for Stable Isotope Research Inc as a private grantmaking foundation exempt under Section 501(c)(3). Its Employer Identification Number is 04-2899854. Its reported mailing city is Chicago, Illinois, United States. For the tax period ending December 2025, the retained IRS record reports total assets of USD 630,639. Reported income for that tax period is USD 16,966. The reported NTEE classification code is U30Z. The IRS ruling year recorded in this snapshot is 1986. Original retained record: IRS Exempt Organizations Business Master File, eo2.csv, EIN 04-2899854. 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: 2026-10-25T16:21:26Z

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