DC Scientific handcrafts ASTM glassware for petroleum laboratories while also operating an A2LA-accredited ISO 17025:2017 calibration laboratory and service operation. Its glassblowers bring more than 150 years of combined experience to precision work, including viscometer tubes and distillation glassware, and the company backs those products with calibration and technical service from laboratories in Baltimore and Houston. For more than 30 years, DC Scientific has specialized in American-made, high-precision distillation glassware, beginning with an ASTM D86 boiling flask.
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Tecglass & Instruments, LLCFor more than three decades, Tecglass & Instruments, LLC has built its identity around the skilled work of a scientific glassblowing team with more than 50 years of combined experience. From its Marion, New York shop, the company creates custom laboratory apparatus for scientific-industry clients and is especially noted for making its own cyanide blocks.MARION, NY
Cannon Instrument CompanySince 1938, Cannon Instrument Company has carried the name of a Penn State research breakthrough into a specialized Central Pennsylvania manufacturing business. Founded by scientist, inventor, and educator Dr. Michael R. Cannon, the company is best known for developing the Cannon-Fenske Routine Viscometer, whose design became the world’s most widely used manual glass viscometer. Today, Cannon serves laboratory customers with testing instruments and related calibration services, supported by ISO 9001:2015 certification and A2LA accreditation.STATE COLLEGE, PA
Queen City Scientific, LLCFounded by glassblower Justin Davis, Queen City Scientific makes and repairs custom scientific glassware in Cincinnati, turning client sketches and specifications into precise borosilicate and quartz pieces. Davis brings 20 years of glassblowing experience and a degree in Scientific Glass Technology to work ranging from laboratory equipment repairs to engineered instrumentation, serving scientific clients worldwide.CINCINNATI, OH
NavCour GlasswareNavCour Glassware grew from Doug Navalinsky’s 2004 partnership with pharmaceutical distributor Eli Coury into a Lorain operation serving more than 150 clients worldwide. Navalinsky brought experience from Aldrich Chemical Co. and Lab Glass, while today’s staff combines decades of neon-tube bending and scientific glassblowing. The company is best known for custom scientific glassware and real-neon work, including repairs when a specialized piece can be saved rather than remade.LORAIN, OH