Metal fabrication companies in New Hampshire
New Hampshire has 30 metal fabricators in EPA records, facilities that list codes for fabricated structural metal, plate work, sheet metal and ornamental metal. The most are in Hudson, Manchester and Keene. That is under 1% of the 4,213 such facilities nationwide, and New Hampshire ranks #36 of 50 states.
- Product
- Metal fabrication companies
- Facilities
- 30
- State rank
- #36
- NAICS
- 332311 and 4 related codes
- Revised
- November 1, 2026
Facilities in New Hampshire
These are active facilities in EPA's ECHO database that list a code for fabricated structural metal, plate work, sheet metal and ornamental metal.
| Facility | City | What EPA lists |
|---|---|---|
| Canam Steel Corp | Claremont | Fabricated Structural Metal Manufacturing |
| Kalwall Panels & Accessories | Manchester | Ornamental and Architectural Metal Work Manufacturing |
| Evs Metal | Keene | Sheet Metal Work Manufacturing |
| Metal Works, Inc. | Londonderry | Sheet Metal Work Manufacturing |
| Novel Iron Works Incorporated | Greenland | Fabricated Structural Metal Manufacturing |
| Wyman-Gordon Investment Castings Inc | Franklin | Fabricated Structural Metal Manufacturing |
| American Steel Fabricators | Greenfield | Fabricated Structural Metal Manufacturing |
| Bodycote Thermal Processing | Laconia | Fabricated Structural Metal Manufacturing |
| Capone Iron Corp North Woods Inc | Berlin | Fabricated Structural Metal Manufacturing |
| Charles P Blouin Co | Seabrook | Sheet Metal Work Manufacturing |
| Cleco Manufacturing Inc | Hudson | Sheet Metal Work Manufacturing |
| Hodgeman, Inc. | Wilton | Sheet Metal Work Manufacturing |
| Hollis Line Machine Company | Hollis | Plate Work Manufacturing |
| Isaacson Structural Steel, Inc. | Berlin | Fabricated Structural Metal Manufacturing |
| Laars Heating Systems | Rochester | Sheet Metal Work Manufacturing |
| Lymo Construction Co Inc | Merrimack | Ornamental and Architectural Metal Work Manufacturing |
| Melanson Co Inc The | Keene | Sheet Metal Work Manufacturing |
| Modern Metal Solutions | Hudson | Ornamental and Architectural Metal Work Manufacturing |
| Momentum Mfg Group - Amherst LLC | Amherst | Sheet Metal Work Manufacturing |
| Northeastern Sheet Metal | Goffstown | Sheet Metal Work Manufacturing |
| Omni Metals Co Inc | Somersworth | Sheet Metal Work Manufacturing |
| Protolabs | Nashua | Sheet Metal Work Manufacturing |
| Prototek Sheetmetal Fabrication LLC | Hopkinton | Sheet Metal Work Manufacturing |
| Schul International Co | Hudson | Sheet Metal Work Manufacturing |
| Spectrum Industrial Finishing, Inc. | Rochester | Fabricated Structural Metal Manufacturing |
| Sylvester Sheet Metal | Manchester | Sheet Metal Work Manufacturing |
| Ultima Nashua Industrial Corp | Nashua | Fabricated Structural Metal Manufacturing |
| Vanguard Manufacturing | New Ipswich | Ornamental and Architectural Metal Work Manufacturing |
| Walpole Recycling & Transfer | Drewsville | Prefabricated Metal Building and Component Manufacturing |
| Warner Power Conversion LLC | Warner | Fabricated Structural Metal Manufacturing |
Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.
Where they are
- Hudson: 3
- Manchester: 2
- Keene: 2
- Berlin: 2
- Rochester: 2
- Nashua: 2
By product code
- Sheet Metal Work Manufacturing (NAICS 332322): 14
- Fabricated Structural Metal Manufacturing (NAICS 332312): 10
- Ornamental and Architectural Metal Work Manufacturing (NAICS 332323): 4
- Prefabricated Metal Building and Component Manufacturing (NAICS 332311): 1
- Plate Work Manufacturing (NAICS 332313): 1
All fabricated metal products manufacturing in New Hampshire: 141 facilities and Census job counts.