Netherlands-based consultant Arcadis named Heather Polinsky chief operating officer for North America based in Highlands Ranch, Colo. She had led the eastern region of its environmental group. Polinsky joined Arcadis in 1999 and is a former U.S. Army project manager. The North America unit has about 5,000 staffers.
David L. Wing has been named president and chief operating officer of Graycor Inc., the Oakbrook Terrace, Ill., construction and facilities services company. He remains president of its Graycor Construction Co. unit, a role he assumed in 2013. Graycor ranks at No. 149 on ENR’s Top 400 Contractors list, reporting $615.6 million in 2018 revenue.