SI Systems, a subsidiary of Paragon Technologies, inc., has a rich tradition of innovation and has been a key player in the material handling industry for more than half a century. Pfizer, Office Depot, Walmart, General Motors, Maybelline, John Deere, Harley-Davidson, BMG and the U.S. Postal Service are just a few of the companies throughout the world that have benefited from the expertise of our team and the use of our technologies in their manufacturing and distribution facilities. SI Systems has been providing world class automated software and material handling systems to order fulfillment, distribution center, warehouse, manufacturing and assembly operations for over 50 years. Systems include WES (Warehouse Execution Systems) software, dispensing A-Frames, towlines and integration services.