Masimo Pulse Oximeter

Masimo is a globally recognized global medical technology company headquartered in Irvine, California. Founded in 1989 by Joe Kiani, the brand rose to prominence through its groundbreaking Signal Extraction Technology (SET), which revolutionized pulse oximetry by ensuring accurate readings during patient movement and low perfusion conditions.

Today, Masimo remains a leader in noninvasive patient monitoring, offering a wide array of sensors, bedside monitors, and consumer health wearables. Their manufacturing operations are heavily centered in the United States, particularly for high-end optical components, though they utilize facilities in Mexico and Malaysia for global supply chain efficiency.

Ownership of the brand remains independent under Masimo Corporation, a publicly-traded entity. The company has recently expanded its portfolio beyond clinical settings into consumer audio and home health through the acquisition of Sound United, demonstrating its evolution into a diversified health and consumer technology powerhouse.