ISO Certified and ITAR Compliant. Defense contractors like Northrop Grumman, General Dynamics, Honeywell, Raytheon and Chemring, and numerous other military contractors which need certified parts come to SIS for performance, quality, and service they expect. SIS meets both their rigorous technical requirements and their demanding production schedules to supply parts for emi and rfi shielded equipment, enclosures, radars, electronics, enclosures, and more. We provide hardware certified to meet demanding military specifications. Ask our experienced sales force what the SIS team can do for you.