Allen Avionics manufacturers a variety of products to help you protect and manage your audio and video equipment. We also design and make high quality analog filters for a variety of needs. We still provide marking equipment, type and ink for our marking machine customers. Most of our products are manufactured in River Grove, Illinois (just outside of Chicago and a few miles from O'Hare airport). Allen Avionics is certified to ISO9001:2015 and is a division of Star Hydraulics. We look forward to working with you.