Top 6 Plastics & Packaging Manufacturers in Delaware 2026

Thermoplastic Processes

Georgetown, Delaware

Thermoplastic Processes was founded in 1951 in Georgetown, Delaware. The company manufactures a broad line of plastic tubing, rods, pipe, and profiles through extrusion and fabrication processes.

Craig Technologies

Seaford, Delaware

Craig Technologies operates from Seaford, Delaware, where it has been based since 1998. The company traces its roots to 1959 when Craig O.

Eco Plastic Products of Delaware

Wilmington, Delaware

Eco Plastic Products of Delaware operates from Wilmington, Delaware, where it collects and recycles plastic waste into durable outdoor products. The organization’s founding year and ownership structure are not publicly disclosed.

Atlantis Industries Corporation

Georgetown, Delaware

Atlantis Industries Corporation operates from Georgetown, Delaware, where it has provided custom injection molding services for nearly 60 years. The company was established as a precision molder and mold maker, building a reputation for plastic injection molding, mold design, and mold building.

Mid Atlantic Packaging Co

Dover, Delaware

Mid Atlantic Packaging Co operates from Dover, Delaware. The company has served the wholesale packaging market for more than 40 years, though it does not publish a precise founding date or identify its founders.

MoldingMart

Dover, Delaware21 employees

Founded in 2020, MoldingMart is headquartered in Dover, Delaware, with additional operations in Turkey and the United States. The company produces a range of premium moldings including wall moldings, baseboards, crown moldings, TV units, mirrors, board-and-batten systems, and classical designs.