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Kenig Lindgren O'Hara & Aboona is a consulting firm based in Rosemont, specializing in offering top-notch traffic, transportation, and parking solutions for various projects in Chicago and its surrounding areas. Their expertise lies in providing quality consulting services tailored to meet the unique needs of clients, ensuring efficient and effective solutions for urban development and infrastructure projects. Generated from their website's infomation

SPACECO provides a range of civil engineering, site planning and surveying services for residential, commercial and industrial construction projects. The company s qualified staff of more than 70, which includes more than 10 licensed professional engineers and five licensed professional surveyors, is dedicated to creating quality site plans for customers projects. One of the largest site development and civil engineering firms in the Chicago area, SPACECO has helped develop nearly 10,000 acres of land in more than 125 municipalities and nearly 15 counties in Illinois, Indiana, Wisconsin and Michigan. Engineering services include feasibility study, site evaluation and due diligence, preliminary design, consultation and public presentation/hearings, final engineering design and construction plans and specifications, construction observation, expert witness, opinion of probable construction cost, and bid assistance and contractor negotiation. Surveying services include field surveying, construction layout and automated hydrographic surveying. SPACECO is headquartered in Rosemont, Ill.

Established in 1961, Graef is one of the leading, employee-owned consulting firms in the United States. The company specializes in structural, civil and transportation engineering solutions. It serves clients in the health care, educational, hospitality, manufacturing and retail industries, as well as government organizations. The company offers a variety of residential design solutions. Graef undertakes projects for industrial units, bridges, and sports and recreational facilities. The company offers environmental, plumbing and contracting services. It conducts inspections and handles replacement and reconstruction projects. The company s project portfolio includes McCleary Bridge and Wausau Highway. Graef has offices in Wisconsin, Illinois, Arizona and Florida.