Spyderco Knives — Innovative EDC Folding Knives

Spyderco is one of the most influential and innovative brands in the global knife industry.

The company was founded in 1976 by Sal Glesser and Gail Glesser in the United States and quickly became known for redefining the functionality and ergonomics of modern knives.

The brand’s story began in an unconventional way. The Glessers traveled across the country in a converted bread delivery truck, selling their products at fairs and trade shows. One of their first patented inventions was the Portable Hand — a multi-clamp device designed to assist in assembling electronic circuit boards.

In 1978, the company settled in Golden and began producing the Tri-Angle Sharpmaker, a revolutionary sharpening system featuring triangular ceramic rods capable of sharpening both plain and serrated edges.

Revolutionizing the Folding Knife

In 1981, Spyderco introduced its first knife — the Spyderco C01 Worker. This model changed the knife industry and established many of the standards used in modern everyday carry (EDC) knives.

Key innovations included:

• the iconic round hole in the blade for one-hand opening

• the pocket clip for convenient carry

• the option of a serrated edge

These features have since become industry standards.

Innovation and Global Production

Over the decades, Spyderco has grown into one of the leading knife manufacturers in the world. The brand operates through a global manufacturing and distribution network with production facilities in:

• the United States

• Japan

• Taiwan

• Italy

• China

Co-founder Sal Glesser was inducted into the prestigious Blade Magazine Cutlery Hall of Fame, recognizing his major influence on the knife industry.

Advanced Blade Steels

Spyderco is widely recognized for pioneering the use of advanced blade steels. In the mid-1990s, the company became the first knife manufacturer to introduce powder-metallurgy steels into regular production.

Popular steels used in Spyderco knives include:

• CPM S30V

• CPM S45VN

• CTS BD1

• CPM SPY27

The well-known Spyderco Salt Series has also set the benchmark for ultra-corrosion-resistant knives designed for marine environments.

Spyderco Product Range

Today, Spyderco offers a wide range of products including:

• folding EDC knives

• fixed blade knives

• tactical and outdoor knives

• kitchen knives

• professional sharpening systems

The brand is also known for collaborating with renowned custom knifemakers and experts, bringing custom-level design and innovation into high-quality production knives.

Spyderco continues to define modern knife design with a philosophy based on innovation, performance, and practical functionality trusted by professionals and enthusiasts worldwide.