This Nut is manufactured by O'Ryan. O’Ryan Industries™ grew from a very modest beginning to an “Inc. 500 Company,” in less than six years. The ability to recognize new and growing markets as well as the capacity to design, engineer, manufacture, and aggressively pursue sales has guaranteed growth and success. Together Rick and Sharon Grant, President and Vice President have pursued a personal interest in the emerging technology of fiber optics, and in doing so turned their interest into an effective and diversified company, specializing in fiber optic illumination.