
Committed to your progress in the USA

Key figures
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16.00
sites
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1100.00
people
Our locations in United States
Metamora, MI
MERSEN USA GS-GMI Corp
4141 S. Oak Street
48455 Metamora
Newburyport, MA
374 Merrimac street
01950 Newburyport
Punxsutawney, PA
MERSEN USA GS-NAC Corp
314 Elk Run Avenue
15767 Punxsutawney
Robesonia, PA
MERSEN USA GS-GMI Corp
70 East Meadow Avenue
19551 Robesonia
Rochester, NY USA
MERSEN USA Rochester NY Corp
1500 Jefferson road, Rochester
14623 Rochester
Salem, VA - US
MERSEN USA ACE CORP
540 Branch Drive VA, 24153 SALEM, USA
St Marys, PA - US
MERSEN USA St Marys-PA Corp.
215 Stackpole Street, St Marys PA 15857, USA
Topton, PA
MERSEN USA GS-GMI Corp
240 Main Street
19562 Topton
Management system certification
Most of the Group's sites are certified for their management systems:
- Quality (ISO 9001, IATF and IRIS),
- Safety and/or Environment (ISO 14001, ISO 18001, ISO 45001 OHSAS, ISO 50001.) or
- Aeronautics, Defense, Space (ASD, EASE, EN9100).
To receive these certificates, please get in touch with your Mersen contact.
Anticorrosion Equipment
Service Centers
Mersen Anticorrosion Equipment Service Centers offer complete packages of services that optimize the life and performance of Corrosion Resistant Heat Transfer Equipment throughout their lifecycle.
From efficient preventive maintenance and inspection, to experienced repair and training, our goal is to keep your system operating at peak performance with minimum unplanned downtime.

History
As early as 1907, Mersen deployed its first team in the United States.
For 30 years, the company's main activity has been the sale of high-quality carbon brushes.
In 1936, the first truly American company, Le Carbone Co. Inc, was born, and began machining imported carbon plates. It was established in Boonton (NJ), which is still a major Group site.
Since the 1990s, the Group has made a large number of acquisitions in the United States, in particular for the advanced materials segment, Bay City (1990) and Stackpole (1991), and for the electrical power segment, Gould Shawmut (1999).
The last acquisition in the United States was made in 2024. It concerned GMI group (Graphite Machining, Inc.), an expert in the purification and machining of graphite, carbon and graphite composites.
