O&G has been named to Engineering News Records Top 100 Green Contractors list. The company has made this list every year since the survey’s inception in 2007.
Companies are ranked according to revenue for construction or design services generated from projects that have been registered with or certified by a third-party organization that sets standards for measuring a building’s or facility’s environmental impact, energy efficiency or carbon footprint. Such groups include the U.S. Green Building Council (USGBC) and the Green Building Initiative. O&G’s ranking is earned through the all the sustainable school construction performed the previous year.