• Science & Technology Research Institutes, Services N.E.C.

• 775.

Association for Computing Machinery

The world's largest professional organization advancing #computing as a science and profession.

• Science & Technology Research Institutes, Services N.E.C.

• 776.

Association for Computing Machinery

The world's largest professional organization advancing #computing as a science and profession.

• Science & Technology Research Institutes, Services N.E.C.

• 777.

Association for Computing Machinery

The world's largest professional organization advancing #computing as a science and profession.

• Science & Technology Research Institutes, Services N.E.C.

• 778.

Association for Computing Machinery

The world's largest professional organization advancing #computing as a science and profession.

• Museums & Museum Activities

• 779.

Illinois Railway Museum

THE MISSION OF THE ILLINOIS RAILWAY MUSEUM IS TO EDUCATE THE PUBLIC AS TO OUR NATION'S RAILROAD AND RAILWAY HISTORY BY COLLECTING, PRESERVING, AND RESTORING ROLLING STOCK, ARTIFACTS, STRUCTURES, AND RELATED TRANSPORTATION EQUIPMENT FOR DISPLAY TO THE PUBLIC; EXHIBITING AND OPERATING RESTORED ROLLING STOCK AND EQUIPMENT ON A DEMONSTRATION RAIL LINE; AND COLLECTING, PRESERVING, AND MAINTAINING A REFERENCE LIBRARY OF PUBLICATIONS, TECHNICAL INFORMATION, AND OTHER MATERIALS REGARDING RAILROADS, RAILWAYS, AND RELATED FORMS OF TRANSPORTATION FOR RESEARCH AND OTHER PURPOSES.

• Historical Societies and Related Activities

• 780.

South Dakota Historical Society Foundation

With your help, we provide the resources to keep South Dakota History alive.

Historic Aircraft Restoration Museum

Our primary mission is the acquisition, restoration, display, and operation of vintage and antique aircraft and related equipment.

• Promotion of Business (Chambers of Commerce)

• 782.

MIDWEST TRAVEL SUPPLIERS ASSOCIATION

Welcome to Midwest Travel Suppliers Association Welcome MTSA is comprised of over 100 members representing a wide array of travel products.

Houston Museum of Natural Science

More than a visit, an experience. Visit Exhibitions Quick Links Support Audubons Birds of America Permanent Exhibits are free on Tuesdays from 58 p.