Mersen in the USA

Committed to your progress in the USA

The American subsidiary of Le Carbone was created in 1907 in the United States.
Statue of Liberty in New York, USA

Key figures

The Group employs around 1,100 people in the United States, spread over 9 industrial sites.
  • 16.00

    sites

  • 1100.00

    people

Our locations in United States

    Metamora, MI

    United States
    Manufacturing site - Graphite Specialties

    MERSEN USA GS-GMI Corp

    4141 S. Oak Street

    48455 Metamora

    Newburyport, MA

    United States
    Manufacturing site - Electrical Protection and Control

    374 Merrimac street

    01950 Newburyport

    +1 978 462 6662

    Punxsutawney, PA

    United States
    Manufacturing site - Graphite Specialties

    MERSEN USA GS-NAC Corp

    314 Elk Run Avenue

    15767 Punxsutawney

    Robesonia, PA

    United States
    Manufacturing site - Graphite Specialties

    MERSEN USA GS-GMI Corp

    70 East Meadow Avenue

    19551 Robesonia

    Rochester, NY USA

    United States
    Manufacturing site - Solutions for Power Management

    MERSEN USA Rochester NY Corp

    1500 Jefferson road, Rochester

    14623 Rochester

    Salem, VA - US

    United States
    Anticorrosion Equipment

    MERSEN USA ACE CORP

    540 Branch Drive VA, 24153 SALEM, USA

    +1 540-389-7535

    St Marys, PA - US

    United States
    Graphite Specialties

    MERSEN USA St Marys-PA Corp.

    215 Stackpole Street, St Marys PA 15857, USA

    +1 814 781 1234

    Topton, PA

    United States
    Manufacturing site - Graphite Specialties

    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. 

Mersen USA Salem site

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.

Chase Shawmut old building
Mersen, Energy to innovate
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