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Founder, President and Sole Owner/Operator, Carmine Marcelli is an AWS Certified Welder (American Welding Society) with over 34 years of experience in the industry. He ​began his career at just ​sixteen years old as an apprentice​ in his hometown in Abruzzo, Italy​​.​  After shadowing his foremen and senior coworkers, he gained many valuable skills, processes, and methods to ​fabricate and weld both structural ​and​ misc. steel​ and oversaw many successful projects during that time.

Several years later, he moved to the United States to assist his parents with their new business ventures​. However, his passion for working with steel never diminished, and he continued to carry out smaller ​steel and iron​ works jobs in his free time.​ ​In 2010, three years after the sale of his family business,​ Carmine ​found himself in a position to challenge the structural steel industry and take a more efficient​ and intuitive approach to steel ​work than the competition.​ ​Marcelli Steel was established that year in a small shop in Newtown, CT. 

With no external support or funding, ​Carmine ​took whatever jobs he could get​ and ​executed​ them with full attention and effort, no matter the size​. His glowing reputation eventually landed him a project at Southern Connecticut State University and put the company on the map! Since then, with the help of his partner, Corey McChesney, Marcelli Steel has grown substantially and services a wide variety of industries with an ever-growing customer base, such as Amazon, Target, CVS, Dick’s Sporting Goods, and a variety of restaurants, strip malls, parking garages, corporate parks, and others.



Today, as an AISC Certified Building Fabricator (BU), Marcelli Steel has proven that our facility possesses the personnel, organization, knowledge, and skills to manufacture structural steel to the highest standards.

We believe that attention to detail and respect for the client and their wishes are of the utmost importance and our diverse group of tradespeople have the same goals and values.


In our new 12,000 sq. ft. shop in Brookfield, CT,  Marcelli Steel is a leader in ​the Tri-State area's steel ​fabrication sector. New model,  state of the art welding equipment, ​CNC machinery & ​heavy-duty cranes allow us to provide full-service steel fabrication for projects of all sizes.



Thank you for taking the time to learn a bit more about our company. We hope to get to know you as well and look forward to working with you on any upcoming projects you may have! 

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