Rotork is a UK manufacturer specializing in valve actuators and gearboxes. It produces electric, electro-hydraulic, and pneumatic/hydraulic actuators along with multi-turn and part-turn gearboxes, and after acquiring Korea's positioner maker YTC (Young Tech) in 2014, it also supplies positioners and limit switch boxes under the ROTORK YTC brand. Its products are used across power generation, oil and gas, and water/wastewater industries that require valve automation.