Castle Worldwide | GCTC

Castle Worldwide

CASTLE Worldwide, Inc. is one of the nation's leading certification and licensure testing companies. The company builds long-term relationships with government agencies, corporations, educational institutions, and trade and professional associations. This testing firm offers examination design, development, and administrative services.

To view the list of tests available, visit To register, contact CASTLE Worldwide at 919-572-6880. Gateway's site ID for registering is 285237.