We have been in business for over 30 years and are a MBE/DBE firm that can fulfill minority/SDB requirement as well as bring a seasoned and very experienced engineering team to the table! Having deep roots since day one in MD and Prince George’s County, we have done extensive work with the county and state as well as federal and commercial sectors over the years. CSIE offers a full spectrum of Design and Engineering support services, Staff Augmentation services, for government and private sectors of Mission Critical facilities.