Camp, Dresser, & McKee (CDM) leased 15,985 square feet at 18581 Teller Ave. in Irvine. CDM is a global, full-service consulting, engineering, construction, and operations firm that helps public and private clients improve the environment and their infrastructure. Rich Essen at Cushman and Wakefield represented Camp Dresser, & McKee, and Adam Boskovich and Tim Marchal at Equity Office represented the landlord, Equity Office, in the direct deal. 18581 Teller Ave, or 1 Center Irvine, is an 86,087-square-foot office building.