Marshall S. Miller founded Geological Consulting Services in 1974 and developed advanced geological modeling techniques to define coal resources throughout the US. Additionally, Marshall used and enhanced petroleum industry geophysical logging technologies for use in coal exploration. The enhanced wireline geophysical logging became a standard in coal exploration. In the 1980s, Marshall expanded the company’s services beyond geology to include mining engineering and environmental services. He subsequently renamed the company Marshall Miller and Associates.
Marshall Miller & Associates (MM&A) delivers innovative solutions with a focus on safety to the mining, aggregate and energy industries. Headquartered in Bluefield, Virginia, U.S.A., the company offers geological; mining engineering; mining and petroleum geology; petroleum engineering; geotechnical and hydrogeological consulting; geophysical logging; mineral processing plant design; mining-related environmental services; expert witness and litigation support; valuations and appraisals; financial and operations assessments; advisory services; and permitting & regulatory services to more than 250 companies in North America, South America, Asia, Australia, and Europe.