Texas Machine-Tool International
- Machine tool sales and service. Also offers cryogenic treatment of tools to make them last longer. In Waco, Texas.
- http://www.tmiusa.com

York Cryogenics
- Deep cryogenic processing of heat-treated steel, carbide, machine parts, auto parts, firearms, musical instruments, and some plastics. In York, PA.
- http://www.yorkcryogenics.com

Metal Science Services
- Computer-controlled cryogenic processing and heat treating services that enhance steel performance for tooling, motor sports, knives, and firearms. Site also explains the science supporting cryogenic processing. In Driftwood TX.
- http://www.metalscience.com/

NW Cryogenics Cold-treatment Services
- Cryogenic processing of metals, composites, electronics and some polymers. In Littlerock, California.
- http://www.nwcryo.com

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
- http://www.cryogenicsinternational.com

Integrated Cryogenic Systems Inc.
- A cryogenic tempering treatment company that increases the life of tools, equipment, parts and materials. In Calgary, Alberta, Canada.
- http://www.cryointegrity.com

Cryogenics of Indiana
- Thermo tempering of metals for maximum performance, durability, and life. In Zionsville, IN.
- http://www.cryogenicsofindiana.com

Cryogenic Institute of New England, Inc.
- Provider of Nitrofreeze Cryogenic Treatment services for metal treatment as well as cryogenic deflashing and deburring for industrial, commercial and recreational applications. Site includes Application Notes and Technical Articles on cryogenics. Located
- http://www.nitrofreeze.com

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.
- http://www.lecryo.com

Dynatherm Alloys -- Deep Cryogenics
- Cryogenic treatment of metals, especially engine parts. In South India.
- http://www.dynat.com/dyna-deep-cyro.html

Frozen Solid
- Deep Cryogenic Processing of most ferrous and non-ferrous materials to increase durability and wear resistance. Located in Suffolk, England
- http://www.frozensolid.co.uk

Cryoforce, L.C.
- A manufacturer and distributor of cryogenic processing equipment, which licenses its techniques to companies in several states. In Lenexa, KS.
- http://www.cryoforce.com/

300 Below, Inc.
- Cryogenic treatment (deep tempering) for motor sports, firearms, softball bats, golf clubs, and musical instruments. In Decatur, IL.
- http://www.300below.com/

Cold Fire
- Custom-built cryogenic systems and treatment of items to increase strength and durability. In Largo, FL.
- http://www.coldfire.com/

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.
- http://www.metal-wear.com

TechSpec, Inc. Cryogenic Treatment Center
- TechSpec Inc. is a Deep Cryogenic Treatment Center, which improves the performance of musical instruments, tools, dies, guns, golf clubs, bearings, engines, hammermills, and rotors. In Kansas City MO.
- http://www.cryometals.com

Fountainhead Cryogenic Processing
- Deep cryogenic processing and tempering of all your tooling and wear parts. In York PA.
- http://www.fountainheadcryo.com

Cryogenic Engineering
- Specializes in deep cryogenic tempering, extending the useful life of tools, metal parts, plastics and other materials. In Cedar Rapids, IA.
- http://www.cryoeng.com/

Advisor In Metals
- Home of William "Bill" Bryson, metallurgist who specializes in the theory and practice of cryogenic and heat treatment of materials. Author of a technical book on each subject. Also provides cryogenic processing services and sales of cryogenic
- http://www.worldpath.net/~hisaim/

Cryopro Temper-Master
- Temper-Master cryogenic processor manufacturing and tempering. Improves durability and performance of tools, musical instruments, and gun barrels. In Springfield, MO.
- http://www.cryopro.com/

Diversified Cryogenics
- Cryogenic Processing improves the life of your guns, engines, instruments, and tools. Located in Minneapolis, Minnesota, United States.
- http://www.diversifiedcryogenics.com/

One Cryo
- Cryogenic tempering treatment services for auto racing, tooling, firearms, golf clubs and musical instruments - Seattle, Washington and Wasilla, Alaska
- http://www.onecryo.com/

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.
- http://www.cryoplus.com/

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.
- http://www.cryotron.com

Cryo-Temper (Durable Metal Products Company)
- DMP manufactures industrial cryogenic tempering systems for both high-temperature and low-temperature use.
- http://www.cryo-temper.com/