Robert Mastromattei

ThinGap LLC designs and manufactures electric motors and generators. The firm specializes in the development and production of custom high performance brushless DC and synchronous permanent magnet motors and generators. The firm serves the medical devices and technologies, aerospace and defense, unmanned systems, robotics and industrial automation and green technology industries. The company was founded in 1997 by Greg Graham, R. Michael Crill and Jerry Yankie and is headquartered in Camarillo, CA.

Part of Allient, Inc., Sierramotion, Inc. offers custom direct drive motors and total motion solutions for OEM customers. The company is based in Loomis, CA. Sierramotion routinely optimizes motors for operating in vacuum, including proper material selection and hermetic sealing for deep vacuum. The company specializes in torque motors, which are typically frameless motors used in applications that require torque control at very slow or zero speed. The company was founded in 2019 by David Lancisi and Robert Mastromattei. Sierramotion was acquired by Allient, Inc. on September 25, 2023.