300 Below, Inc.

Cryogenic treatment (deep tempering) for motor sports, firearms, softball bats, golf clubs, and musical instruments. In Decatur, IL.

Alpine Cryogenics, Inc.

Cryogenic processing of materials, including tools, auto parts, and rifle barrels. One page has a useful research article with photographs. In Moscow, PA.

American Cryogenics, Inc.

Microprocessor controlled deep cryoheat treatment of tool and high speed steels. Custom cryoprocessor design and fabrication. In Waukesha, WI

Cold Fire

Custom-built cryogenic systems and treatment of items to increase strength and durability. In Largo, FL.

Controlled Thermal Processing Cryogenics

Cryogenic processing for racing and many industrial applications, including tools and firearms. In Chicago and Rockford, IL, Charlotte, NC, and Waltharn, MA.

Cryo-Temper (Durable Metal Products Company)

DMP manufactures industrial cryogenic tempering systems for both high-temperature and low-temperature use.

Cryoforce, L.C.

A manufacturer and distributor of cryogenic processing equipment, which licenses its techniques to companies in several states. In Lenexa, KS.

Cryogenic Engineering

Specializes in deep cryogenic tempering, extending the useful life of tools, metal parts, plastics and other materials. In Cedar Rapids, IA.

Cryogenic Institute of New England, Inc.

Provider of Nitrofreeze Cryogenic Tempering services for industrial, commercial and recreational applications. Site includes Application Notes and Technical Articles on cryogenic tempering. In Worcester, MA. Site not currently viewable with some versions of Netscape.

Cryogenics International Cryogenic Systems and Processing

Cryogenics International manufactures deep cryogenic treatment systems and provides cryogenic processing for automotive racing engines, tools, musical instruments, etc. In Scottsdale, AZ

Cryogenics of Indiana

Thermo tempering of metals for maximum performance, durability, and life. In Zionsville, IN.

CryoPlus Inc.

Cryogenic treatment of all metal tooling, stamping dies, gun barrels, engine components, brass instruments. To make them more wear resistant. In Wooster, Ohio.

Cryopro Temper-Master

Temper-Master cryogenic processor manufacturing and tempering. Improves durability and performance of tools, musical instruments, and gun barrels. In Springfield, MO.

Cryotron (Canada) Ltd.

Cryogenic processing of equipment. Has a nicely detailed overview of the company's Vari-Cold cryogenic process and equipment. In Spruce Grove, Alberta, Canada.

Diversified Cryogenics

Cryogenic Processing improves the life of your guns, engines, instruments, and tools. Located in Minneapolis, Minnesota, United States.

Fountainhead Cryogenic Processing

Deep cryogenic processing and tempering of all your tooling and wear parts. In York PA.

Frozen Solid

Deep Cryogenic Processing of most ferrous and non-ferrous materials to increase durability and wear resistance. Located in Suffolk, England

Future Technology Services Inc.

Cryogenic processing of tools, sports equipment, etc. at -120 and -300 Deg. Also offers service in thin film industrial coatings. In Lapeer, Michigan.

Integrated Cryogenic Systems Inc.

A cryogenic tempering treatment company that increases the life of tools, equipment, parts and materials. In Calgary, Alberta, Canada.

Leading Edge Cryogenics, Inc.

Leading Edge Cryogenics has pioneered cryogenic process engineering, with three patents on the process used to treat spark plugs, brake pads, and orthopedic devices. In Camp Verde, Arizona.