TBG is a consortium of engineering consulting companies. With more than 400 professionals and 23 survey crews, TBG provides a wide spectrum of integrated, unified services. The expertise, vision and resources of our multidisciplinary team allows us to provide optimum solutions for our client’s needs. Every project is an investment in our future, and we are committed to delivering consistently accurate, timely and cost-effective answers to a wide range of engineering challenges. The combination of TBG’s expertise allows clients to enjoy services comparable to a larger firm, without sacrificing individualized attention. TBG is staffed with a team of experienced and responsive professionals who are committed to personal service. - Includes eight companies with a total staff of approximately 400. - Offices are located in Rosemont, Morris, New Lenox, Peoria, Illinois and Indianapolis, Crown Point and South Bend, Indiana. - Offers a full range of engineering, environmental and surveying services. CBBEL LTD - CBBEL LLC - SPACECO - MACKIE CONSULTANTS - THOMSON SURVEYING - EMERALD SITE SERVICES - KLOA - CAMPLIN ENVIRONMENTAL SERVICES