Best Diversified Medical Devices Companies in California, United States
The 43 best Diversified Medical Devices companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: OSI Systems.
Ranked: Best Diversified Medical Devices companies in California
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | OSI Systems Manufacturer of electronic systems for homeland security and the healthcare industry | $1.4B | 9 mo ago | Public | Deepak Chopra CEO & President & Founder | 1987 | WordPressApple iCloud MailMicrosoft 365+25 | — | — |
| 2 | Commure AI-powered healthcare solutions simplifying workflows for providers, administrators, and patients | $823M | 3 mo ago | Series E | — | 2016 | TurbopackSentryNode.js+29 | 4 patents Integrated health‑IT platforms for care team coordination and EHR workflow interoperability | 1 job opening · 1 launch · 1 award |
| 3 | Mendaera R&D company focused on manufacturing medical devices for multiple therapeutic areas | $97M | 23 mo ago | Series B | Josh Defonzo Co-Founder & CEO | 2020 | — | 24 patents Image-guided robotic percutaneous intervention devices with sterile disposable instrument interfaces. | 1 launch |
| 4 | ReShape Medical R&D company focused on manufacturing laparoscopically implanted devices for multiple therapeutic areas | $78M | 114 mo ago | Series D | Richard Thompson President | 2006 | — | — | — |
| 5 | Thefoundry Developer of medical technologies and healthcare companies | $31M | 75 mo ago | Series B | Hanson Gifford CEO | 1998 | WordPressMySQLPHP+9 | — | — |
| 6 | iota Biosciences Pioneering life-changing bioelectronics through innovative diagnostic and therapeutic devices | $15M | 99 mo ago | Acquired | Jose Carmena Co-Founder & Co-CEO | 2017 | Windows ServerMicrosoft ASP.NETGSAP+10 | 189 patents Patents concentrated in health & consumer products | — |
| 7 | Nexus Dx Global provider of near-patient testing systems and advanced diagnostic solutions | $15M | 202 mo ago | Acquired | Nam Shin President & Chief Executive Officer | 2009 | — | 121 patents Microfluidic lab‑on‑chip diagnostic devices and integrated centrifuge/ELISA analysis platforms. | — |
| 8 | IRIDEX Manufacturer of ophthalmic laser systems and related devices 64Product top 14%Funding top 23%Patents top 27%Innovation top 31% All 12 signals ▾Producttop 14% Fundingtop 23% Patentstop 27% Innovationtop 31% Fin. healthtop 33% Growthtop 44% Markettop 47% Newsbottom 48% Moatbottom 44% Techbottom 42% Globalbottom 38% Partnersbottom 35% Product: 6 distinct product lines · Company stage: Public Funding: Raised $10.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 64/100 | $10M | 17 mo ago | Public | — | 1989 | DNNPleskWindows Server+19 | 152 patents Ophthalmic laser therapy devices for retinal and intraocular photocoagulation | — |
| 9 | BatAndCat Developer of hearing aid technology and research instruments for audiology | $7M | 109 mo ago | Funding Raised | Chas Pavlovic CEO | 2013 | — | — | — |
| 10 | Magellan Spine Technologies R&D company focused on manufacturing spinal DART devices for multiple therapeutic areas | $618K | 206 mo ago | Deadpooled | — | 2007 | — | — | — |
| 11 | Charisela Technologies R&D company focused on manufacturing test kits and clinical devices for multiple therapeutic areas | $420K | 189 mo ago | Deadpooled | Bob Danielzadeh Founder | 2006 | — | — | — |
Top 12 Diversified Medical Devices companies in California
#1
Series E · San Francisco, California · founded 2016 · 213 employees$823.3Mraised▾
AI-powered healthcare solutions simplifying workflows for providers, administrators, and patients. They build software and AI experiences to address healthcare's biggest challenges. Their mission is to lower the cost of care, reduce burnout and disparities, and improve community health through automated and AI-powered solutions. They offer a product suite including ambient AI agents, revenue cycle management, patient management, and staff safety tools. They focus on collaborative, mission-focused, and healthcare-centered solutions with a security-first approach. Their technology stack is extensible and integrated, designed to simplify health systems. They leverage advanced machine learning, large language models, and AI co-pilots to automate provider workflows, documentation, coding, and administrative processes. They provide solutions for revenue cycle management, patient engagement, and asset tracking, aiming to improve efficiency and patient care.
- May 2026Series E$70M
- Jun 2025Series E$200M
- Jan 2022Series D$3.8M
- Sep 2021Series D$509.2M
#2
Public · Hawthorne, California · founded 1987 · 6423 employees$1.4Braised▾
OSI Systems is a manufacturer of electronic systems for homeland security and the healthcare industry. It develops electronic systems and components for applications in homeland security, healthcare, defense, and aerospace markets worldwide. The three divisions of the company are security, healthcare and optoelectronics and manufacturing. The Healthcare division provides patient monitoring devices, diagnostic cardiology devices, software, and anesthesia delivery and ventilation systems under the spacelabs name. These products are used in critical care, emergency, and perioperative areas within hospitals, physician's offices, medical clinics, and ambulatory surgery centers. The Optoelectronics and Manufacturing division design, manufacture, and markets optoelectronic devices under the OSI Optoelectronics name.
- Nov 2025Post IPO$500M
- Apr 2019Conventional Debt$535M
- Post IPO$96M
- Post IPO$225M
#3
Series B · San Carlos, California · founded 2020 · 26 employees$97Mraised▾
R&D company focused on manufacturing medical devices for multiple therapeutic areas
#4
Public · Mountain View, California · founded 1989 · 130 employees$10Mraised▾
Manufacturer of ophthalmic laser systems and related devices. It develops, manufactures, and markets laser-based medical systems, delivery devices, and consumable instrumentation for ophthalmology. The company offers solutions for retinal and glaucoma treatments, including MicroPulse laser technology. Products encompass lasers, probes, consumables, and glaucoma devices, supporting both office-based and hospital settings. The company provides clinical and technical support.
- Mar 2025Post IPO$10M
#5
Series D · San Clemente, California · founded 2006 · 116 employees$78.3Mraised▾
R&D company focused on manufacturing laparoscopically implanted devices for multiple therapeutic areas
#6
Series B · Menlo Park, California · founded 1998 · 9 employees$30.8Mraised▾
Developer of medical technologies and healthcare companies. This entity creates and builds companies focused on addressing significant unmet clinical needs. The focus is on developing innovative technologies and therapies that improve patient outcomes. The resulting companies are then supported through various stages of growth and development. The ultimate measure of success is the positive impact on patients' lives.
- Apr 2020Series B$12M
- Feb 2019Series B$15.8M
- Jan 2010Unattributed$3M
#7
Acquired · Berkeley, California · founded 2017 · 105 employees$15Mraised▾
Pioneering life-changing bioelectronics through innovative diagnostic and therapeutic devices. The company is dedicated to improving human life by developing cutting-edge bioelectronic solutions. Focused on creating state-of-the-art diagnostic and therapeutic devices, they aim to transform disease management and treatment. Their mission involves using innovative science and technology to develop safe and effective bioelectronic devices. They are committed to bringing groundbreaking approaches to patients, making a life-changing difference in healthcare. The company is involved in research and development, creating innovative technologies that will change patients’ lives.
- May 2018Series A$15M
#8
Acquired · San Diego, California · founded 2009 · 24 employees$15Mraised▾
Global provider of near-patient testing systems and advanced diagnostic solutions. The company focuses on improving patient care by delivering rapid and reliable information at the point of care. They provide the medical community with diagnostic solutions, delivering patient information when and where it is needed most. Their mission is to enhance the health and well-being of people around the world by providing quality test information. They offer a range of in vitro diagnostic products based on their technology, including tests for cardiac markers, kidney injury, and other critical conditions. They provide customer login, customer profile, customer downloads, and registration. They are committed to innovation and excellence in the field of diagnostics.
#9
Funding Raised · Palo Alto, California · founded 2013$6.6Mraised▾
Developer of hearing aid technology and research instruments for audiology. The company designs wearable hearing devices intended to improve conversations in noisy environments. It also develops research tools used by scientists to advance hearing aid processing capabilities. The organization maintains a website for a speech intelligibility index standard.
- Jul 2017Grant (prize money)$4.9M
- Jul 2014Grant (prize money)$1.7M
#10
Deadpooled · Irvine, California · founded 2007$618.1Kraised▾
Developer of medical devices created to support lumbar spine discectomy procedures. The company's DART (disc annular repair technology) System is an implant which provides disc annular repair and stabilization following lumbar spine discectomy procedures, enabling simple implantation, secure retention and provides distinct advantages over other non-fusion lumbar spinal implants and patients can be discharged one day following surgery.
#11
Deadpooled · Menlo Park, California · founded 2006$420Kraised▾
R&D company focused on manufacturing test kits and clinical devices for multiple therapeutic areas
#12
Seed · San Francisco, California · founded 2025—raised▾
Developer of diagnostic technology for industrial and medical applications. The company is currently operating in stealth mode while developing its technology. It focuses on creating advancements within the diagnostics sector.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Diversified Medical Devices coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.