Top 23 Plastics & Packaging Manufacturers in New Hampshire 2026
Last updated
FirmsLedger lists 23 plastics & packaging manufacturers headquartered in New Hampshire. The largest clusters are in Hudson (3), Bow (2), Londonderry (2) and Manchester (2), and the other 14 are in 13 more cities. Hudson listings include Granite State Plastics, Proto Part and MRPC.
By specialty, New Hampshire has injection molding (12) listings. Capabilities that more than one of them list include plastic injection molding (2) and precision machining (2).
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| Granite State Plastics | Hudson | Injection Molding | (603) 595-7790 | granitestateplastics.com |
| Index Packaging, Inc. | Milton | Custom packaging design and engineering | (800) 662-3626 | indexpackaging.com |
| Mills Industries | Laconia | Custom Corrugated Plastic Packaging | (603) 528-4217 | millsind.com |
| Poly-Ject Inc | Amherst | Plastic injection molding | (603) 882-6570 | polyject.com |
| Summit Packaging Systems | Manchester | Aerosol valve manufacturing | (603) 669-5410 | summitpackagingsystems.com |
| TechNH, Inc. | Merrimack | Plastic injection molding | (603) 424-4404 | technh.com |
| Ambix Manufacturing, Inc. | Albany | Plastic injection molding | (603) 452-5247 | ambixmfg.com |
| EPTAM Precision | Plastics | Northfield | Polymer machining | (866) 443-7826 | eptam.com |
| Hill Packaging | Salem | Box erecting and sealing equipment sales and service | (603) 818-8101 | hillpackaging.com |
| Hy-Ten Plastics Inc | Milford | Custom Injection Molding | (603) 673-1611 | hy-ten.com |
All Plastics & Packaging in New Hampshire
Mills Industries
Laconia, New Hampshire
Mills Industries has operated from Laconia, New Hampshire since its founding in 1972. The company remains family owned and operated, now spanning four generations of the Mills family.
Summit Packaging Systems
Manchester, New Hampshire
Summit Packaging Systems, founded in 1976, is headquartered in Manchester, New Hampshire. The company operates five manufacturing facilities worldwide, including locations in Racine, Wisconsin; Almere, Netherlands; Tarnow, Poland; Pilar, Argentina; and Toluca, Mexico.
Hy-Ten Plastics Inc
Milford, New Hampshire
Hy-Ten Plastics Inc operates from its headquarters and production facility in Milford, New Hampshire. The company has served the medical, electronic, industrial, and consumer industries for 60 years, specializing in tight-tolerance plastic injection molding and related value-added services.
- Keller ProductsBow, New Hampshire
- MoldPro, Inc.Swanzey, New Hampshire
- North American Plastics Ltd.Manchester, New Hampshire
- Pelham Plastics IncPelham, New Hampshire
- Plastech Machining & Fab Inc.Bow, New Hampshire
- Proto Part Inc.Hudson, New Hampshire
- Good Start PackagingBedford, New Hampshire
- Infant Ear Molding of New Hampshire, LLCFremont, New Hampshire
- MRPCHudson, New Hampshire
- Pak SolutionsLancaster, New Hampshire
- Piedmont PlasticsLondonderry, New Hampshire
- Total Packaging Concept IncLondonderry, New Hampshire
- Plastics Forming Enterprise, LLCMerrimack, New Hampshire
Listings are grouped by category and location. Add your company
Other industries in New Hampshire
- Electrical Equipment & Components in New Hampshire
- Mechanical Components in New Hampshire
- Metal Fabrication in New Hampshire
- Electronics & Semiconductor in New Hampshire
- Automotive Parts in New Hampshire
- Textile & Apparel in New Hampshire
- Furniture & Woodworking in New Hampshire
- Food & Beverage Processing in New Hampshire
- Medical Devices in New Hampshire
- Pharmaceutical in New Hampshire
Plastics & Packaging in New Hampshire by specialty
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Frequently asked questions
Which plastics & packaging manufacturers in New Hampshire list plastic injection molding?
2 companies list it: TechNH and Ambix Manufacturing.
Which certifications do plastics & packaging manufacturers in New Hampshire list?
ISO 9001:2015: Mills Industries, EPTAM Precision | Plastics and 5 others. ISO 13485:2016: Granite State Plastics, TechNH and 2 others. ISO 9001: Summit Packaging Systems and Ambix Manufacturing.