Precision Energy Services Inc. (PES) is an Energy Systems Company that offers services and energy plants to industrial energy users and the power industry in all aspects of thermal fuel-based energy development, production and utilization; with particular expertise and focus on the use of biomass and non-traditional non-fossil solid fuels.

Formed in 1993, PES was originally established as an energy system O&M contractor for clients such as DuPont, AFGA, Becromal and Thompson River Co-Gen. The company has grown into a fully-capable team of mechanical, combustion/process and operations engineers, designers, and project managers.