Roberts & Schaefer provides engineering, procurement and construction services for bulk material handling and processing systems used in the mining and minerals, petroleum coke and aggregates sectors. In addition to its Chicago headquarters, Roberts & Schaefer has offices in Salt Lake City, Utah; Brisbane, Australia; Gliwice, Poland; Jakarta, Indonesia; and Ahmedabad, India. Roberts &Schaefer also includes Soros, a provider of material handling solutions for port and marine applications and Separator, providing services to coal, minerals and power markets in Eastern Europe.

KBR (formerly known as Kellogg, Brown & Root) is a global engineering, construction and services company supporting the energy, hydrocarbon, government services, minerals, civil infrastructure, power and industrial markets.