Top 9 Welding Companies in Connecticut 2026
Last updated
FirmsLedger lists 9 welding companies headquartered in Connecticut. They are spread across 9 cities, including Bristol, Deep River, East Windsor and Hartford.
By specialty, Connecticut has sheet metal fabrication (10), aluminum fabrication (5) and structural steel (3) listings.
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| Alloy Welding and Manufacturing Co., Inc. | Bristol | Metal fabrication | (860) 582-3638 | alloyweldingmfg.com |
| Sound Manufacturing, Inc. | Old Saybrook | Laser Cutting (CO2 and fiber, up to 5 kW) | (860) 388-4466 | soundmfg.com |
| CAMM Metals, Inc. | East Windsor | Metal Fabrication | (860) 292-6260 | cammmetals.com |
| Hurley Metal Fabrication & MFG | Windsor | Fiber laser cutting (up to 1.125" thick, 80" x 160" table) | (860) 688-8844 | hurleymetalfab.com |
| Stammy's Steel | Oakdale | Welding | (860) 337-1817 | stammyssteel.com |
| Full Pen Fabrication LLC | Deep River | TIG welding | (860) 876-9783 | fullpenfabrication.com |
| Metal Industries, Inc. | Hartford | CNC and manual turning (up to 36" diameter × 17 ft) | (860) 296-6228 | metal-ind.com |
| Pro-Forming Sheet Metal LLC | Norwich | CNC turret punching | (860) 886-9900 | pro-forming.com |
| Marius Welder Metal Table Legs. | Plainville | Welding | (860) 890-5085 | mariuswelder.com |

Alloy Welding and Manufacturing Co., Inc.
Bristol, Connecticut
Alloy Welding & Manufacturing Co., Inc. operates from Bristol, Connecticut, where it was founded in 1937 by Delphis “Del” Frechette.

Stammy's Steel
Oakdale, Connecticut
Stammy's Steel was founded in 2012 in Oakdale, Connecticut by a welder and engineer whose background in nuclear engineering and passion for motorsports led to a fabrication business. The owner began by building custom off-road parts for a trophy truck project and later expanded into the local drifting scene.

Full Pen Fabrication LLC
Deep River, Connecticut
Full Pen Fabrication LLC operates from Deep River, Connecticut, providing welding and metal fabrication services across New England and nationwide. The company does not disclose its founding year or ownership structure publicly; its primary contact is Billy Owens.

Pro-Forming Sheet Metal LLC
Norwich, Connecticut
Pro-Forming Sheet Metal LLC operates from Norwich, Connecticut, where it has provided custom metal fabrication and machining services for more than 25 years. The company offers a range of metal fabrication processes including CNC turret punching (30-ton, 25-station), CNC press brake forming (120-ton, 10-foot), roll forming, sawing, plasma and oxy-acetylene cutting, MIG and TIG welding, and basic machining such as milling, drilling, and turning.
Marius Welder Metal Table Legs.
Plainville, Connecticut
Marius Welder Metal Table Legs operates from Plainville, Connecticut, producing heavy-duty steel table bases and legs for dining, coffee, and console tables. The company does not disclose its founding year or ownership structure, and no founder is named in public materials.
Frequently asked questions
Which certifications do welding companies in Connecticut list?
ISO 9001:2015: Alloy Welding and Manufacturing and Sound Manufacturing.


