# Marine Biological Laboratory

Marine Biological Laboratory is a Nonprofit Organization based in Woods Hole, United States.

## Overview

- **Organization type:** Nonprofit Organization
- **Headquarters:** Woods Hole, United States
- **Region:** North America

## About

The IRS Exempt Organizations Business Master File snapshot retrieved on 2026-10-14 identifies Marine Biological Laboratory as a tax-exempt nonprofit organization exempt under Section 501(c)(3). Its Employer Identification Number is 04-2104690. Its reported mailing city is Woods Hole, Massachusetts, United States. For the tax period ending June 2025, the retained IRS record reports total assets of USD 246,532,340. Reported income for that tax period is USD 59,160,647. Reported revenue for that tax period is USD 55,357,167. The reported NTEE classification code is U500. The IRS ruling year recorded in this snapshot is 1938. Original retained record: IRS Exempt Organizations Business Master File, eo1.csv, EIN 04-2104690. 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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