Chicago-based Cotter Consulting Inc. announced recently that it will celebrate its 20th year in business as a leading owner’s representative firm. Cotter Consulting operates its main office on South Wacker Drive in Chicago and opened a second office in Milwaukee on Sept 1.

Anne Edwards-Cotter opened the firm in 1990 after receiving a civil engineering degree from Bradley University and spending nine years at Chicago-based construction firms Schal Associates, LaSalle Partners and Walsh Higgins.

Throughout its 20 years, Cotter has served the transportation, buildings, healthcare and aviation industries, successfully completing more than 500 projects.