For 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.
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
Eagle Laboratory Glass Company, LLCSince Merritt Heck started Eagle Laboratory Glass Company just outside Cleveland in 1968, this small family business has made and repaired borosilicate laboratory glassware. Daughter Yvonne began glassblowing there in 1981, bought the company in 1994, and remains its owner and lead glassblower, while her son carries the craft into a third generation. The Painesville shop produces catalog and custom pieces to order and repairs damaged glassware when replacement would cost more.PAINESVILLE, OH
DC ScientificDC 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.GLEN BURNIE, MD