Hendrickson - Global leader in heavy-duty suspensions Hendrickson, hendrickson air suspensions, hendrickson bumpers, Suspension Manufacturer Hendrickson is a leading global manufacturer and supplier of medium- and heavy-duty mechanical, elastomeric and air suspensions; integrated and non-integrated axle and brake systems; tire pressure control systems; auxiliary lift axle systems; parabolic and multi-leaf springs; stabilizers; bumpers; and components to the global commercial transportation industry.