Founded in 1976, Precision Plastics, Inc. in Beltsville, Maryland, turns demanding ideas into custom plastic fabrications, with particular depth in museum display cases and scientific equipment enclosures. Its nearly 50 years of museum experience grew from early retail fixtures and quarter-scale rocket models for the U.S. Navy, and today the company handles projects from one-off prototypes to short-run production. Since 1992, the National Institutes of Health has selected Precision Plastics microscope enclosures for performance and economy.
Mercury Plastics Inc. – MdFounded as Maryland Thermoform, Candle Packaging USA, and Quake Scientific in 1984, Mercury Plastics Maryland manufactures custom thermoformed and fabricated plastic parts in Baltimore. Acquired by Mercury Plastics Inc. in 2020, the Maryland operation combines more than 30 years of local experience with vertically integrated, wholly American-made production, taking projects from prototype through manufacturing and shipping. Its work includes specialized applications for government and military customers as well as high-volume consumer packaging, under ISO 9001 Design certification.MIDDLEFIELD, OH
Mid-Atlantic PlasticsFounded in 2005, Mid-Atlantic Plastics is a Baltimore-area fabrication shop built around practical expertise and long-term customer relationships. Its professionals create custom plastic work and large-run projects for customers in fields such as health care, military, and food processing, with the capacity to handle everything from prototypes to production runs.ROSEDALE, MD
Helmut Guenschel, IncMore than 45 years ago, European-trained master craftsmen founded Helmut Guenschel, Inc., whose Baltimore team has made careful workmanship and attention to detail its defining character. The company creates museum-quality display cases for institutions and collectors, with custom engineering for objects that require long-term protection and presentation.MIDDLE RIVER, MD
Carney Plastics IncSince 1986, Youngstown’s Carney Plastics has combined plastic-material distribution with custom fabrication, while building its own made-in-Ohio acrylic display cases for diecast cars and sports collectibles. Its work spans one-off prototypes to larger production runs, with display cases—including those for the Stanley Cup and Super Bowl trophies—standing out as a signature specialty.YOUNGSTOWN, OH