Spyderco: Pioneering Innovation and Unwavering Performance Since 1976. From humble beginnings selling wares from a converted bread truck in 1976, Sal and Gail Glesser founded Spyderco, sparking a revolution in the cutlery world. Settling in Golden, Colorado, by 1978, they first introduced the groundbreaking Tri-Angle Sharpmaker®. However, it was the 1981 launch of the C01 Worker that truly redefined the modern folding knife. Spyderco pioneered the now-iconic Trademark Round Hole™ for one-handed opening, the convenient pocket clip, and the first production serrated edge. This relentless pursuit of innovation led to the first use of powder-metallurgy blade steels and collaborations on advanced materials like CPM SPY27®, alongside the ultra-corrosion-resistant Salt® Series. Today, with global manufacturing and Sal Glesser in the Blade Magazine Cutlery Hall of Fame®, Spyderco remains an undisputed industry leader, dedicated to earning customer trust through unwavering quality and reliable high performance.