American Combustion Service Inc.(Mokena, Ill.) is celebrating its 25th anniversary and has expanded into new corporate headquarters in Mokena.

Murphy Co.(St. Louis) hired William Conawayas project manager. He will be responsible for planning and executing projects, overseeing construction sites, and managing project objectives, requirements, and personnel.

ARC Mechanical Contractors Inc.’s(Bradford, Vt.)Michael CookandBrian Sagerpassed the LEED Accredited Professional exam in New Construction and Major Renovation.

Comprehensive Energy Services Inc.(Orlando, Fla.) hiredDouglas Glennas manager of its newly formed Engineered Systems Group.

Publication date:08/03/2009