Legendary service and trust are at the core of our business. Electronic Systems, Inc. has been helping its customers lower their total production costs while improving throughput for over 40 years. Our business model is centered on Lean initiatives and practices to provide our customers with the best economic value; while maintaining a culture of empowered associates dedicated to integrity, flexibility, and responsiveness. Exceptional length of customer tenure and sustained growth speak to our success with this approach. Located in Sioux Falls, South Dakota and founded in 1980, Electronic Systems, Inc. (ESI) supports the commercial, industrial, medical, energy, agriculture and HVAC markets with electronic assembly services. We are ISO 9001 and 13485 certified. Our capabilities provide for a full range electronic assembly from PCBA to final product assembly.