Archivists Round Table of Metropolitan New York Inc

A. R. T. aims to be an advocate for archival and special collections and to provide opportunities for professional development and archival discussions.

• History Museums

• 1883.

Plymouth Antiquarian Society

The Plymouth Antiquarian Society is a non-profit educational institution that collects, preserves, and interprets historic houses and artifacts.

Green-wood Historic Fund Inc

Green-Wood Historic Fund’s mission is to share the resources of the Green-Wood Cemetery, one of the world's great cemeteries, with the public.

• Science, General (includes Interdisciplinary Scientific Activities)

• 1885.

Mid-America Paleontology Society

Public Education and Awareness EXPO 2025 Info Newsletter is now available.

• Neighborhood/Block Association

• 1886.

African-American Community Association of Jefferson Cty Inc

The African American Community Association of Jefferson County is passionate about protecting Jefferson Countys African American history, culture, and historic heritage sites.

• Philanthropy/Charity/ Voluntarism Promotion (General)

• 1887.

Hardrock Charlie Foundation Inc

RECONNECTING OUR RANGER BROTHERS RECONNECTING OUR RANGER BROTHERS Our Mission Hardrock Charlie Foundation Inc.

• Private Grantmaking Foundations

• 1888.

Witte Foundation

Wonder awaits you at the Witte, where Nature, Science and Culture meet.

Cedar Creek Battlefield Foundation

501(c)(3) non-profit historic preservation organization in the Shenandoah Valley.

• Fund Raising and/or Fund Distribution

• 1890.

OLD SOLDIERS HOME FOUNDATION INC

Improving quality of life and excellence in care at our nation's oldest home for enlisted veterans.