Founded in 1980 and headquartered in Oakland, Maryland, GMS Mine Repair & Maintenance is a mining and tunneling contractor that delivers underground and surface mine development, engineering support, and custom-fabricated mining equipment across North America. Its engineer-led crews work from 16 regional offices in the U.S. and Canada, combining field execution with in-house fabrication for site-specific needs. GMS also emphasizes formal safety training through its American Mining Academy and a safety culture built into daily operations.
MSHA Safety Training Standards
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CBS EquipmentFounded in 2004 by chemical engineer Ed Roscioli, West Virginia-based CBS Equipment designs, builds and repairs mining equipment, with a particular focus on underground mine safety. The family-owned company invented and holds the patent for the LifeShelter inflatable refuge shelter, with more than 1,600 licensed shelters operating worldwide, and also develops custom equipment through its engineering and consulting work. CBS describes its approach as equipment engineered and built by miners for miners, backed by more than 30 years of mining-industry experience.BEAVER, WV
CSE CorporationFounded in 1969 servicing and repairing mining safety equipment, CSE Corporation now designs and manufactures industrial safety equipment for hazardous environments at its U.S. facility in Export, Pennsylvania. The company helped pioneer carriable self-contained self-rescuers and is known for emergency breathing systems and gas detection equipment used in mining, tunneling, rescue, and industrial work. CSE also provides product training and in-house certified repair services, keeping its equipment supported long after it leaves the factory.333131EXPORT, PA
Metalcraft MER, IncFor more than 40 years, Metalcraft MER, Inc. has built lasting relationships with mining customers while retaining many employees for a decade or longer. Based in Summersville, West Virginia, the company is known for extending the working life of underground mining machinery through remanufacturing and repair, with custom fabrication work also serving industrial customers beyond mining.SUMMERSVILLE, WV
Highland IndustriesSince 1988, Highland Industries has built and rebuilt underground mining equipment in Oak Hill, West Virginia, turning its beginnings as a mine-equipment rebuild facility into an OEM manufacturer. Its frames and machinery are designed for rugged mining conditions, backed by a 43,200-square-foot shop and a parts operation with thousands of stocked items. Highland also reconditions surplus equipment and provides repair, field service, and engineering support.OAK HILL, WV