AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS (AAVSO)

International nonprofit organization and world leader in variable star research, with a mission to enable anyone to participate in scientific discovery.

• Astronomy (includes Observatories)

• 308.

Tmt International Observatory LLC

TMT is a next-generation observatory committed to supporting community-based astronomy through respect, inclusion and community stewardship.

Blue Hill Observatory Science Center

The Blue Hill Observatory, established in 1885, remains a center for the study of weather and climate.

• Military/Veterans' Organizations

• 310.

American Legion

Veterans strengthening America. Supporting veterans, the military & their families since 1919.

• Professional Societies & Associations

• 311.

Western History Association

The WHA strives to be a congenial home for the study and teaching of all aspects of North American Wests, frontiers, homelands, and borderlands.

• Professional Societies & Associations

• 312.

Northwest Society of Colon and Rectal Surgeons

TO SUPPORT LEARNING AMONG COLLEAGUES AND THE SPECIALTY OF COLON AND RECTAL SURGERY IN THE REGION.

• Land Resources Conservation

• 313.

Colorado Mountain Club

Founded in 1912, the Colorado Mountain Club is a non-profit offering over 3,000 activities & courses annually.

• Education N.E.C.

• 314.

California Association of Superior Court Investigators

45thAnnual Statewide CASCI Conference When May 7th 9th 2025 Where The Dana on Mission BaySan Diego Full Conference for CASCI Members 400.

SUNCOAST CHAPTER OF THE NATIONAL

The Suncoast Chapter of The National Academy of Television Arts & Sciences is a nonprofit Florida corporation dedicated to excellence in television.