From 2023 (YouTube Edition): Bridge of CiES CiES Inc. is a Bend, Oregon-based designer and manufacturer of modular embedded aircraft systems and sensors. The company’s fuel-level senders have largely transformed—and bettered—fuel-management in general aviation aircraft. Differing dramatically from marginally-reliable float and legacy capacitance fuel-sensor systems, CiES’s intelligent fuel-level sensors are precise, dependable, and safe. Comprising advanced sensor technologies, unique interfaces, and embedded software, CiES products provide pilots and aircraft operators accurate and reliable data upon which important decisions may be better and more confidently made.