Directory of walk in environmental chamber manufacturers and suppliers that provide walk in environmental test chambers, temperature chambers, vibration and shock testing, humidity chambers, thermal shock testing, test chambers, stress screening, stability chambers, salt spray test chambers and altitude chambers."

BMA Ayer, MA 01432 (978) 772-3310	Manufacture prefabricated Walk-In Rooms starting at a size of 5' x 3' x 6' 10" 'H up to 20' x 30' 10'H. Temperature ranges as low as -73°C to +94°C. Humidity ranges including 5%RH to 98%RH can be accommodated. Finishes can be galvanized steel, patterned aluminum, stainless steel, or painted surfaces.
Associated Environmental Systems Ayer, MA 01432 978.772.0022	Manufactures a broad line of standard and customized simulation chambers for a wide variety of uses.
James Technical Services UK +44 (0)1874 711209	Offers a standard range of competitively priced temperature and temperature/humidity chambers and ovens as well as specializing in 'one-off' machines, from laboratory bench top models to walk- and drive-in rooms.
Environment Associates Chatsworth, CA (818) 709-0568	Offers a variety of environmental testing solutions for a large spectrum of qualification and reliability test needs.
Climatic Test Systems UK (0)1903 774088	Climatic Test Systems Limited is a leading European designer and manufacturer of Environmental Test Equipment with a comprehensive range of products and services including hire chambers to meet the stringent requirements of custom and industry standard test specifications.
Envirotronics Grand Rapids, MI (616) 554-5020	Environmental test chambers for scientific testing of humidity, temperature, thermal shock, stress screening, including walk-in, drive-in chambers.
Espec Byron Center, MI 49315-8354 877-GO-ESPEC	Manufactures environmental test chambers to simulate various temperature and humidity environments. Products include benchtop, walk-in sizes, environmental stress screening (ESS), HAST, thermal shock.
Weiss Technik Ltd. UK	Manufactures broad range of climatic simulation equipment. Includes environmental test chambers, drive-in humidity and walk-in temperature chambers, as well as material stress and salt spray testing equipment.
Climatic Test Systems UK (0)1903 774088	Manufactures broad range of climatic simulation equipment. Includes environmental test chambers, drive-in humidity and walk-in temperature chambers, as well as material stress and salt spray testing equipment.