Injection molding companies in New Hampshire

Injection molders melt thermoplastic resin and inject it into steel or aluminum molds, producing plastic parts in high volumes with consistent quality. Many also build or maintain their own molds. Below are injection molding companies in New Hampshire.

Listings come from each company’s public information and may be incomplete, so confirm capabilities, materials and certifications with the shop before you commit. The fastest way to get quotes is one request: attach your drawing (PDF or STEP) or describe the part, and Noramark routes it to U.S. shops that fit.

The most listings are in Contoocook, NH (2), Portsmouth, NH (2) and South Acworth, NH (2). Certifications stated: 5 ISO 9001 and 1 AS9100.