Spyderco was founded in 1976 by Sal and Gail Glesser. In 1981, the Glessers put down roots in Golden, Colorado and introduced the first Spyderco folding knife. That knife pioneered the concept of a round hole in the blade for one-handed opening, a clip on the handle for carry at the top of the pocket, and the option of a serrated edge for aggressive cutting performance. Since then, Spyderco has steadily grown to become one of the leaders in the cutlery industry. In addition to a worldwide distribution network and manufacturing resources in the U.S., Japan, Taiwan, Italy, and China.