Top 11 Plastics & Packaging Manufacturers in Maryland 2026

Mercury Plastics MD

Baltimore, Maryland

Mercury Plastics MD operates from Baltimore, Maryland, as the East Coast division of Mercury Plastics Inc., a Midwest-based custom thermoformer with 65 years of history. The Maryland division traces its roots to 1984 and was formerly known as Maryland Thermoform Corporation (MTC) before joining the Mercury family in February 2018 under General Manager Carl Livesay.

Mid-Atlantic Plastics

Rosedale, Maryland

Mid-Atlantic Plastics was founded in 2005 in Rosedale, Maryland, driven by customer demand for quality plastic fabrication. The company began with a focus on delivering reliable fabrication services across diverse industries.

Production Science Inc

Chestertown, Maryland

Production Sciences, Inc. has operated from Chestertown, Maryland since its founding in June 1989.

Chesapeake Plastics Manufacturing

Lusby, Maryland

Chesapeake Plastics Manufacturing was founded in 2003 by Steven Moore and Mark McGrath in Lusby, Maryland, to provide affordable injection molding services. The shop offers design-to-manufacturing capabilities under one roof, including injection molding, rapid prototyping with mold production in less than a week, and production tooling.

Precision Plastics

Beltsville, Maryland

Precision Plastics, Inc. was founded in 1976 in Beltsville, Maryland, by its current owner with the goal of providing custom plastic fabrication services to a broad range of industries.

Prime Manufacturing Technologies

Savage, Maryland

Prime Manufacturing Technologies was founded in 1991 by Luke Chow in Savage, Maryland, located in Howard County. A chemical engineer by training, Chow moved from Pennsylvania after a career at Allied Corporation to start the company, initially focusing on plastic injection molding, composites, and CNC machining with an emphasis on lean and agile processes.

Discount Moulding

Halethorpe, Maryland

Discount Moulding operates from its headquarters in Halethorpe, Maryland, with additional showrooms in Chicago, Charlotte, Baltimore, Tysons Corner, and Charleston. The company is family-owned, though its founding year and founders are not publicly disclosed.

A&A Injection Molding Division

Cockeysville, Maryland

A&A Global Industries, Inc., operating its Injection Molding Division, is headquartered in Cockeysville, Maryland. The company serves manufacturers throughout the Mid-Atlantic region with a trio of core services: injection molding, powder coating, and tool and die.

Bosley Mouldings

Glen Burnie, Maryland

Bosley Mouldings operates from Glen Burnie, Maryland, where it was founded in 1913 by Milton W. Bosley.

Hexa Plastics

Baltimore, Maryland

Hexa Plastics operates from a facility Suite 3, in Baltimore, Maryland. The company is identified as a Lorob Bees Company, though no founding year or individual founders are disclosed in its public materials.