John Whitfield, who has worked in the mining industry since 1973, leads Limitless Mining Solutions as it builds on decades of engineering and mining-sales experience. The Allison Park company specializes in underground mining while helping overseas suppliers enter the North American market through distributorship and consultancy relationships.
J.H. Fletcher & CoRooted in Huntington since 1937, J.H. Fletcher & Co. has built its identity around solving difficult underground mining problems through custom engineering and manufacturing. Its work now extends beyond mining through a division created in 2016, while the company continues to design equipment for mine operators and support it throughout its working life.HUNTINGTON, WV
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
Sentinel SolutionsChuck Skillman founded Sentinel Solutions in 2016 after building field experience in construction, underground work, and directional drilling. The company serves underground construction contractors nationwide, pairing practical jobsite knowledge with engineering to develop solutions for difficult drilling and fluid-management work.HOLTSVILLE, NY
American Mine Door (AMD)Established as American Mine Door in 1906, Cleveland-based AMD is a long-standing mining manufacturer known for developing custom mine-door systems around the conditions of each underground operation. Its U.S.-made equipment serves mines worldwide, with more than 75% of sales going to international operations.CLEVELAND, OH