Day & Zimmermann
Day & Zimmermann is a leading provider of construction & engineering, staffing, and defense solutions for leading corporations and governments around the world. Operating from more than 150 worldwide locations with 2.7 Billion USD in revenue, Day & Zimmermann is currently ranked as one of the largest private companies in the U.S. by Forbes and has been ranked the #1 O&M contractor in the U.S. power industry since 2008.