# Top Manufacturing Companies in New Hampshire Recommended Contract Manufacturing companies in New Hampshire include Welch Fluorocarbon, Spinnaker Contract Manufacturing, Contract Manufacturing Technologies, Green Light Manufacturing, Sure-Fab, LLC, Flex America, Additive Alliance, LLC, Prototek - Rapid Prototyping & Low-Volume Production, Prodways Machines, Hypertherm Ventures. We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. [Learn how Clutch ensures trust](#why-trust-clutch) ## List of the Best Top Manufacturing Companies in New Hampshire Ratings Updated: Jul 25, 2026 ### [Welch Fluorocarbon](https://clutch.co/profile/welch-fluorocarbon) - 50 - 249 employees - Dover, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Established in 1985, Welch Fluorocarbon is a Contract Manufacturing company. Their team offers Contract Manufacturing. [Visit Website](https://www.welchfluorocarbon.com/) --- ### [Spinnaker Contract Manufacturing](https://clutch.co/profile/spinnaker-contract-manufacturing) - 50 - 249 employees - Tilton, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Spinnaker Contract Manufacturing is a Contract Manufacturing company in Tilton, New Hampshire. Their services include Contract Manufacturing. [Visit Website](http://spinnakercontract.com/) --- ### [Contract Manufacturing Technologies](https://clutch.co/profile/contract-manufacturing-technologies) - 2 - 9 employees - Somersworth, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing Technologies is a Contract Manufacturing company headquartered in Somersworth, New Hampshire. The team offers Contract Manufacturing. [Visit Website](http://www.contract-mfg-tech.com/) --- ### [Green Light Manufacturing](https://clutch.co/profile/green-light-manufacturing) - 2 - 9 employees - Salem, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Green Light Manufacturing is a Contract Manufacturing company. Their small team is based in Salem, New Hampshire and focuses on Contract Manufacturing. The company was launched in 2008. [Visit Website](https://greenlight-mfg.com/) --- ### [Sure-Fab, LLC](https://clutch.co/profile/sure-fab) - 10 - 49 employees - Shelburne, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Sure-Fab, LLC, a Contract Manufacturing company, focuses on Contract Manufacturing. The agency is headquartered in Shelburne, New Hampshire. [Visit Website](http://www.surefab.net/) --- ### [Flex America](https://clutch.co/profile/flex-america) - 2 - 9 employees - Rye, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Established in 2005, Flex America is a small Contract Manufacturing company located in Rye, New Hampshire. Their team specializes in Contract Manufacturing. [Visit Website](https://www.flex-america.biz/) --- ### [Additive Alliance, LLC](https://clutch.co/profile/additive-alliance) - 2 - 9 employees - Bedford, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Additive Alliance, LLC is a Contract Manufacturing company. Launched in 2017, the agency is in Bedford, New Hampshire. Their team offers Contract Manufacturing. [Visit Website](http://www.additivealliancellc.com/) --- ### [Prototek - Rapid Prototyping & Low-Volume Production](https://clutch.co/profile/prototek-rapid-prototyping-low-volume-production) - 250 - 999 employees - Hopkinton, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Product Design #### Company description Prototek - Rapid Prototyping & Low-Volume Production is a Product Design and Contract Manufacturing company established in 1987. The firm specializes in Product Design and Contract Manufacturing. [Visit Website](https://www.prototek.com/) --- ### [Prodways Machines](https://clutch.co/profile/prodways-machines) - 250 - 999 employees - Merrimack, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Product Design #### Company description Founded in 1990, Prodways Machines is a Product Design and Contract Manufacturing company. The midsize team focuses on Product Design and Contract Manufacturing. [Visit Website](https://www.prodways.com/en/) --- ### [Hypertherm Ventures](https://clutch.co/profile/hypertherm-ventures) - 1,000 - 9,999 employees - Hanover, NH #### Services Provided - Allocation of Expertise by Percentage - 35% AI Development - 30% Contract Manufacturing - 35% IoT Development #### Company description Hypertherm Ventures, an IoT development company, is located in Hanover, New Hampshire. They offer IoT development and Artificial Intelligence. [Visit Website](http://www.hyperthermventures.com) --- ### [Rugged Aluminum Trailers](https://clutch.co/profile/rugged-aluminum-trailers) - 50 - 249 employees - Hudson, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Rugged Aluminum Trailers is a Contract Manufacturing company. They were founded in 1976, and their services include Contract Manufacturing. [Visit Website](https://ruggedat.com/) --- ### [Northeastern Sheet Metal, Inc.](https://clutch.co/profile/northeastern-sheet-metal) - 10 - 49 employees - Goffstown, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing company Northeastern Sheet Metal, Inc. Was established in 1975. The firm focuses on Contract Manufacturing. [Visit Website](http://nesmcorp.com/) --- ### [RANALL Metal Technology, Inc.](https://clutch.co/profile/ranall-metal-technology) - 10 - 49 employees - Hooksett, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description RANALL Metal Technology, Inc. Is a Hooksett, New Hampshire-based Contract Manufacturing company. They provide Contract Manufacturing. [Visit Website](http://www.ranallmetal.com/) --- ### [Spiral Air Manufacturing LLC](https://clutch.co/profile/spiral-air-manufacturing) - 10 - 49 employees - Derry, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing company Spiral Air Manufacturing LLC is in Derry, New Hampshire. The team focuses on Contract Manufacturing. [Visit Website](https://www.spiralair.com/) --- ### [FWM Inc.](https://clutch.co/profile/fwm) - 10 - 49 employees - Hudson, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description FWM Inc. Is a Contract Manufacturing company. The team is based in Hudson, New Hampshire, and their services include Contract Manufacturing. [Visit Website](https://fwminc.com/) --- ### [Galaxy Glass & Aluminum, Inc.](https://clutch.co/profile/galaxy-glass-aluminum) - 50 - 249 employees - Manchester, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Galaxy Glass & Aluminum, Inc. Is a Contract Manufacturing company established in 1990. Their services include Contract Manufacturing. [Visit Website](http://galaxyglass.biz/) --- ### [Northstar Steel and Aluminum, Inc.](https://clutch.co/profile/northstar-steel-aluminum) - 10 - 49 employees - Manchester, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Northstar Steel and Aluminum, Inc. , a Contract Manufacturing company, is in Manchester, New Hampshire. They specialize in Contract Manufacturing and were founded in 1970. [Visit Website](https://www.nstarmetals.com/) --- ### [Proline Products LLC](https://clutch.co/profile/proline-products) - 10 - 49 employees - Milton, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Launched in 2002, Proline Products LLC is a Contract Manufacturing company. The team provides Contract Manufacturing. [Visit Website](https://nhtrailers.com/) --- ### [Approved Sheet Metal](https://clutch.co/profile/approved-sheet-metal) - 10 - 49 employees - Hudson, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Approved Sheet Metal is a Contract Manufacturing company. The Hudson, New Hampshire-based firm provides Contract Manufacturing. [Visit Website](https://www.approvedsheetmetal.com/) --- ### [Uni-Cast, LLC.](https://clutch.co/profile/uni-cast) - 10 - 49 employees - Londonderry, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Uni-Cast, LLC. Is a Contract Manufacturing company. Headquartered in Londonderry, New Hampshire, the firm provides Contract Manufacturing. [Visit Website](https://www.uni-cast.com/) --- ### [Coed Sportswear](https://clutch.co/profile/coed-sportswear) - 10 - 49 employees - Newfields, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Coed Sportswear is a Contract Manufacturing company. Their team is headquartered in Newfields, New Hampshire. The firm specializes in Contract Manufacturing. [Visit Website](https://www.coedsportswear.com/) --- ### [Teddy's Tees](https://clutch.co/profile/teddys-tees) - 2 - 9 employees - Concord, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Teddy's Tees is a Contract Manufacturing company. The company is based in Concord, New Hampshire. Their team provides Contract Manufacturing. [Visit Website](https://www.teddystees.com/) --- ### [Shirtmasters Screenprinting & Embroidery](https://clutch.co/profile/shirtmasters-screenprinting-embroidery) - 2 - 9 employees - Chichester, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Shirtmasters Screenprinting & Embroidery, a Contract Manufacturing company, is located in Chichester, New Hampshire. Their services include Contract Manufacturing. [Visit Website](http://www.shirtmasters.com/) --- ### [Bay State Industrial Welding & Fabrication, Inc.](https://clutch.co/profile/bay-state-industrial-welding-fabrication) - 10 - 49 employees - Hudson, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Bay State Industrial Welding & Fabrication, Inc. Is a Contract Manufacturing company based in Hudson, New Hampshire. They provide Contract Manufacturing. [Visit Website](http://www.bsiw.com/) --- ### [Hannah International Foods](https://clutch.co/profile/hannah-international-foods) - 10 - 49 employees - Seabrook, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing company Hannah International Foods was founded in 1981. The small team specializes in Contract Manufacturing. [Visit Website](https://hannahfoods.net/) --- ### [Old Dutch Vinegar & Mustard Co., Inc.](https://clutch.co/profile/old-dutch-vinegar-mustard-co) - 10 - 49 employees - Greenville, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Old Dutch Vinegar & Mustard Co., Inc. Is a Contract Manufacturing company. Their small team of employees is based in Greenville, New Hampshire. Their team offers Contract Manufacturing. [Visit Website](https://olddutchmustard.com/) --- ### [Favorite Foods, Inc.](https://clutch.co/profile/favorite-foods) - 10 - 49 employees - Somersworth, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing company Favorite Foods, Inc. Was established in 1988. The company focuses on Contract Manufacturing, and is small. [Visit Website](https://www.favoritefoods.com/) --- ### [American Foods](https://clutch.co/profile/american-foods) - 10 - 49 employees - Pelham, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description American Foods, a Contract Manufacturing company, was launched in 1950. Located in Pelham, New Hampshire, the team provides Contract Manufacturing. [Visit Website](https://usamericanfoods.com/) --- ### [NextPhase Medical Devices](https://clutch.co/profile/nextphase-medical-devices) - 50 - 249 employees - Rochester, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description NextPhase Medical Devices, a Contract Manufacturing company, is located in Rochester, New Hampshire and Mansfield, Massachusetts. The team focuses on Contract Manufacturing. [Visit Website](https://www.nextphasemed.com/) --- ### [KMC Systems, Inc.](https://clutch.co/profile/kmc-systems) - 50 - 249 employees - Merrimack, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description KMC Systems, Inc. Is a Contract Manufacturing company. Their team is in Merrimack, New Hampshire and focuses on Contract Manufacturing. [Visit Website](https://www.kmcsystems.com/) --- ### [Vascular Technology](https://clutch.co/profile/vascular-technology) - 10 - 49 employees - Nashua, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing company Vascular Technology is based in Nashua, New Hampshire. Their services include Contract Manufacturing. [Visit Website](https://vti-online.com/) --- ### [Microspec Corporation](https://clutch.co/profile/microspec-corporation-0) - 10 - 49 employees - Peterborough, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Small Contract Manufacturing company Microspec Corporation, is based in Peterborough, New Hampshire. Their services include Contract Manufacturing. [Visit Website](https://www.microspecorporation.com/) --- ### [BOND OPTICS, LLC](https://clutch.co/profile/bond-optics) - 10 - 49 employees - Lebanon, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description BOND OPTICS, LLC is a Contract Manufacturing company. Founded in 1959, their team specializes in Contract Manufacturing. [Visit Website](https://bondoptics.com/) --- ### [Vermont Mechanical, Inc.](https://clutch.co/profile/vermont-mechanical) - 50 - 249 employees - Lebanon, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Founded in 1988, Vermont Mechanical, Inc. Is a Contract Manufacturing company. The agency provides Contract Manufacturing. [Visit Website](https://www.vtmechanical.com/) #### Less than 1% of employees work in Lebanon office Lebanon, NH 46 Centerra Pkwy #102 employees 603 790 8171 [See All Locations (2)](https://clutch.co/profile/vermont-mechanical#location) --- ### [Engelberth Construction, Inc.](https://clutch.co/profile/engelberth-construction) - 50 - 249 employees - Concord, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Founded in 1972, Engelberth Construction, Inc. Is a Contract Manufacturing company. Their services include Contract Manufacturing. [Visit Website](https://www.engelberth.com/) #### Less than 1% of employees work in Concord office Concord, NH 70 Commercial St STE 202 employees 603 873 4144 [See All Locations (2)](https://clutch.co/profile/engelberth-construction#location) --- ### [Keene Additive Manufacturing](https://clutch.co/profile/keene-additive-manufacturing) - 2 - 9 employees - Keene, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Product Design #### Company description Founded in 2022, Keene Additive Manufacturing is a Product Design and Contract Manufacturing company. Their services include Product Design and Contract Manufacturing. [Visit Website](https://keeneadditive.com/) --- ### [Madco3d LLC](https://clutch.co/profile/madco3d) - 2 - 9 employees - Rochester, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Product Design #### Company description Madco3d LLC, a small Product Design and Contract Manufacturing company, is located in Rochester, New Hampshire and New York, New York. The team provides Product Design and Contract Manufacturing. [Visit Website](https://madco3d.com/) --- ### [EZ-CRETE LLC](https://clutch.co/profile/ez-crete) - 2 - 9 employees - Swanzey, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description EZ-CRETE LLC, a small Contract Manufacturing company, is based in Swanzey, New Hampshire. The team offers Contract Manufacturing. [Visit Website](https://www.ez-crete.com/) --- ### [RTD Mfg](https://clutch.co/profile/rtd-mfg) - 2 - 9 employees - Goffstown, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description RTD Mfg is a Contract Manufacturing company. They are headquartered in Goffstown, New Hampshire and have small team of experts. Their services include Contract Manufacturing. [Visit Website](http://www.rtdarms.com/) --- ### [EXPANSIA](https://clutch.co/profile/expansia) - 50 - 249 employees - Nashua, NH #### Services Provided - Allocation of Expertise by Percentage - 20% Cloud Consulting & SI - 20% Contract Manufacturing - 20% Corporate Training & Coaching - 20% Cybersecurity - 20% IT Strategy Consulting #### Company description IT strategy consulting company EXPANSIA was established in 2014. The midsize team provides IT strategy consulting and cloud consulting & SI. [Visit Website](https://expansiagroup.com/) --- ### [New England Air Systems](https://clutch.co/profile/new-england-air-systems) - 50 - 249 employees - Lebanon, NH #### Services Provided - Allocation of Expertise by Percentage - 20% Branding - 20% Contract Manufacturing - 20% Engineering - 20% Fabrication - 20% Logo #### Company description New England Air Systems, a midsize branding agency, is in Williston, Vermont and Rutland, Vermont. Their services include Branding and Logo. [Visit Website](https://neair.com/) #### Less than 1% of employees work in Lebanon office Lebanon, NH 10 Technology Dr employees [See All Locations (3)](https://clutch.co/profile/new-england-air-systems#location) --- ### [Focus Hospitality Sales](https://clutch.co/profile/focus-hospitality-sales) - 2 - 9 employees - Seabrook, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Focus Hospitality Sales is a Contract Manufacturing company. Their small team is headquartered in Seabrook, New Hampshire and provides Contract Manufacturing. The company was established in 2012. [Visit Website](http://www.focussalesgroup.com/) --- ### [National Folders Direct by Fiberkraft](https://clutch.co/profile/national-folders-direct-fiberkraft) - 2 - 9 employees - Rochester, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description National Folders Direct by Fiberkraft, a Contract Manufacturing company, focus on Contract Manufacturing. They were launched in 2020. [Visit Website](https://nationalfoldersdirect.com/) --- ### [Derek Marshall Lighting](https://clutch.co/profile/derek-marshall-lighting) - 2 - 9 employees - Sandwich, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Lighting Design #### Company description Derek Marshall Lighting is a Contract Manufacturing and Lighting Design company. The agency is based in Sandwich, New Hampshire. Their services include Contract Manufacturing and Lighting Design. [Visit Website](https://derekmarshall.com/) --- ### [Sprinkler Innovations](https://clutch.co/profile/sprinkler-innovations) - 2 - 9 employees - Seabrook, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Product Design #### Company description Founded in 2009, Sprinkler Innovations is a small Seabrook, New Hampshire-based Contract Manufacturing and Product Design company. Their team focuses on Contract Manufacturing and Product Design. [Visit Website](https://www.sprinklerinnovations.com/) --- ### [LaVoie Welding and Fabrication](https://clutch.co/profile/lavoie-welding-fabrication) - 2 - 9 employees - Plaistow, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 25% Fulfillment - 25% Warehousing & Distribution #### Company description In Plaistow, New Hampshire, LaVoie Welding and Fabrication is a Contract Manufacturing company. They provide Contract Manufacturing and Fulfillment and were launched in 2001. [Visit Website](http://lavoiewelding.com/) --- ### [New Hampshire Paper Tube LLC.](https://clutch.co/profile/new-hampshire-paper-tube) - 2 - 9 employees - Stratham, NH #### Services Provided - Allocation of Expertise by Percentage - 50% Contract Manufacturing - 50% Logistics & Supply Chain Consulting #### Company description New Hampshire Paper Tube LLC. Is a Contract Manufacturing and Logistics & Supply Chain Consulting company. Their services include Contract Manufacturing. [Visit Website](https://www.nhpapertube.com/) --- ### [Vibrac LLC. Precision Test Systems](https://clutch.co/profile/vibrac-precision-test-systems) - 10 - 49 employees - Manchester, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Founded in 1960, Vibrac LLC. Precision Test Systems is a small Contract Manufacturing company. Their services include Contract Manufacturing. [Visit Website](https://www.vibrac.com/) --- ### [Colonial Electronic Mfr Inc.](https://clutch.co/profile/colonial-electronic-mfr) - 10 - 49 employees - Nashua, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Colonial Electronic Mfr Inc. Is a Contract Manufacturing company. Based in Nashua, New Hampshire, the team offers Contract Manufacturing. [Visit Website](http://www.ridgeviewmanufacturing.com/) --- ### [Amphenol Printed Circuits Inc](https://clutch.co/profile/amphenol-printed-circuits) - 10 - 49 employees - Nashua, NH #### Services Provided - Allocation of Expertise by Percentage - 100% Contract Manufacturing #### Company description Contract Manufacturing company Amphenol Printed Circuits Inc was launched in 1998. The firm specializes in Contract Manufacturing, and is small. [Visit Website](http://www.amphenol-apc.com/) --- #### Get personalized agency matches based on your project goals. [Find the right fit](https://project.clutch.co/project-brief?source=directory_slide_in_CTA&BPB_adoption_source=directory) ## Why Trust Clutch At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences. Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. 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