IQS Directory provides an extensive list of gear manufacturers and suppliers in Illinois. Utilize our website to review and source gear manufacturers with our easy-to-use features which allow you to locate gear companies that will design, engineer, and manufacture gears for your exact specifications. Our request for quote forms make it easy to connect with leading gear manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for helical gears, worm gears, or differential gears.