ILLCO, Inc.
Mary DeMarco is an experienced Business Development Manager currently at ILLCO, Inc. since October 2017, where responsibilities include developing and implementing energy reduction projects, utility incentives, and identifying cost-saving energy improvements in commercial and industrial facilities. Additionally, Mary has held a similar role at OpTerra Energy Services' C&I Division since January 2015, previously known as Bluestone Energy Services. Mary obtained a Bachelor of Applied Science in Business Communications and Public Relations from Illinois State University.
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ILLCO, Inc.
ILLCO, Inc. is a wholesale distributor of heating, ventilation, air-conditioning and refrigeration equipment, parts and supplies. We have been a family-owned business since inception in 1929 and now have over 90 employees and 8 locations – Aurora, Countryside, Elk Grove Village, Waukegan, Joliet, and Peoria in Illinois; Hammond, Indiana; and Milwaukee, Wisconsin. Service is our most important product, and our employees and customers are our most valuable assets. Our goal is to identify young talent, educate and train them on our products and our industry, and give them opportunities to grow within our company. We offer a full menu of competitive benefits, including medical, dental and long-term disability insurance, a profit sharing and 401k plan and assistance with industry-related continuing education expenses.