Process automation and instrumentation solutions, PLC/DCS control systems, machine-vision solutions, and calibration services, are the specialty of Sierra Instrumentation & Controls, a leading system integrator serving pharmaceutical, chemical, and oil-and-gas customers. Founded in 1994 and headquartered in Thane, and holding ISO 9001:2015 and NABL accreditation, it ensures compliance and quality, operating across India with partnerships such as Rockwell Automation.