Our Company We are a leading control systems integration firm located in the Seattle area. Since 2001 QCC has provided the highest quality products and services with a unique dedication to customer satisfaction. We operate throughout the Western United States with a commitment that no project is complete until everyone is happy, That includes the contractors, consulting engineers and the owner. Systems Integration Our staff of licensed professional engineers, certified instrument techs, and panel fabricators can assist with all aspects of your control system. We have an onsite UL508A panel shop specializing in custom PLC and VFD control panels. Our engineering staff has extensive experience in custom PLC and HMI programming. We have experience with all the major hardware and software manufacturers include Allen Bradley, Siemens/T.I., Koyo, Modicon, and Wonderware. Field Service Our service department can provide onsite emergency or preventative maintenance services. Our field service department offers 24/7 emergency on-call support. We can assist with software upgrades, instrument calibrations, and electrical troubleshooting. Please inquire about our annual maintenance and calibration contracts.