Established in 1995 as Global Cooling Inc., Stirling Ultracold is an Athens, Ohio manufacturer known for bringing free-piston Stirling engine technology to laboratory cold storage. Its 50,000-square-foot facility builds the company’s free-piston engines and ultra-low-temperature freezers for life-science and clinical research customers worldwide.
ENERGY STAR®
Sunpower, IncAthens, Ohio’s Sunpower traces its roots to 1974, when Ohio University professor William Beale founded the company to advance the free-piston Stirling engine he had developed in the early 1960s. Now part of AMETEK, Sunpower remains known for this specialized technology, applying it to CryoTel® cryocoolers and related engineering work from its 40,000-square-foot facility.ATHENS, OH
So-Low Environmental Equipment CoFrom a Cincinnati home garage in 1959, So-Low Environmental Equipment Co. has grown into an American manufacturer of ultra-low-temperature freezers and medical-grade laboratory refrigeration equipment. Its Cincinnati factory serves research, medical and industrial organizations with U.S.-made cold-storage systems, including specialized units for flammable materials and hazardous locations. So-Low also emphasizes personal support, with live customer service and in-house parts and service assistance throughout a freezer’s life cycle.CINCINNATI, OH
Advanced Research Systems, IncFounded in 1986 by Ravi Bains, Advanced Research Systems designs and manufactures cryocoolers and laboratory cryogenic systems for low-temperature research. Working from Pennsylvania, the company is unusual among laboratory cryostat suppliers in making its own 4 K closed-cycle cryocoolers, allowing it to tailor complete systems for demanding experiments. ARS-built systems are exported to more than 50 countries and supported by the company’s own service staff.334516MACUNGIE, PA