Chicago Bridge &Iron ( Chicago Bridge & Iron; commonly known as CB&I), a diversified multinational engineering group, was founded in 1889 in Chicago, U.S.A. It is dedicated to design, procurement, construction and other general contracting, with a focus on oil and gas engineering; has more than 50,000 employees worldwide; and is ranked in the The company is ranked No. 1,084 on the 2014 Global 2000 list.