Masimo
ActiveOverview
Masimo is a global medical technology company that develops, manufactures, and markets noninvasive patient monitoring technologies, sensors, and related software for hospital, home, and consumer use. It operates in healthcare (patient monitors, hospital automation, remote monitoring) and non-healthcare (consumer audio until 2025 sale) segments, with products sold in over 150 countries. Notable for Masimo SET pulse oximetry technology that measures through motion and low perfusion, and expansions into brain function monitoring, capnography, and neuromodulation devices.
History
Masimo was founded in 1989 by engineer Joe Kiani, with Mohamed Diab joining as co-developer, initially focusing on pulse oximetry. It went public in 2007 (NASDAQ: MASI) and introduced key technologies like Masimo SET in 1995 and Root platform in 2013. In 2022, it acquired Sound United for consumer audio brands; sold the division in May 2025 to Harman International. Founder and CEO Joe Kiani resigned in September 2024 after a proxy contest. In February 2026, Danaher Corporation agreed to acquire Masimo for approximately $10 billion.12
Product Lines
| Product Line | Positioning | Price Range |
|---|---|---|
| Masimo SET Pulse Oximetry (noninvasive oxygen saturation monitoring) | Hospital-grade measure-through-motion technology | $500 - $5,000 |
| Rainbow Pulse CO-Oximetry (blood constituent analysis) | Noninvasive multi-parameter monitoring | $1,000 - $10,000 |
| Root Patient Monitoring Platform (connectivity hub) | Modular hospital monitoring system | $5,000 - $20,000 |
| SedLine Brain Function Monitoring (EEG-based) | Next-generation sedation depth monitoring | $2,000 - $8,000 |
| O3 Regional Oximetry (cerebral oxygenation) | Optical brain tissue oxygenation sensor | $1,500 - $6,000 |
| Radius Wearables (tetherless patient monitors) | Portable wireless monitoring | $300 - $2,000 |
| MightySat (fingertip pulse oximeter) | Consumer and clinical spot-check device | $150 - $800 |
Manufacturing
Masimo develops and manufactures its noninvasive monitoring technologies, sensors, and devices primarily in the United States, with headquarters and operations in Irvine, California. Products incorporate proprietary single-patient use or reusable sensors, circuit boards, software, and cables produced in-house. The company supplies to hospitals, EMS, and consumers through direct sales, distributors, and OEM partners.15
Notable Products
- Masimo SET Pulse Oximetry - Measure-through-motion and low perfusion pulse oximetry technology introduced in 1995.
- Root Platform - Flexible patient monitoring and connectivity platform launched in 2013.
- Radius-7 - Tetherless wearable patient monitor for continuous monitoring.
- MightySat Rx - Fingertip pulse oximeter for spot-check use in clinical and home settings.
- SedLine Brain Monitoring - EEG-based brain function monitoring for sedation and anesthesia.
- Bridge Neuromodulation - Device for reducing opioid withdrawal symptoms, released in 2020.
Reputation
Masimo is recognized by healthcare professionals for its innovative noninvasive monitoring technologies, particularly Masimo SET pulse oximetry effective in challenging conditions like motion and low perfusion. Enthusiasts and clinicians value its expansions into brain, respiration, and connectivity solutions, with strong installed base driving sensor sales. Criticisms include leadership instability from the 2024 CEO resignation and strategic shifts like the consumer audio acquisition and divestiture, alongside ongoing acquisition talks.123
Sources (7)
- https://www.bccresearch.com/company-index/profile/masimo
- https://en.wikipedia.org/wiki/Masimo
- https://www.greatplacetowork.com/certified-company/1001177
- https://investor.masimo.com/news/news-details/2019/Company-Profile-for-Masimo/default.aspx
- https://investor.masimo.com/company-profile/default.aspx
- https://www.masimo.com/company/about/
- https://www.masimo.com