Top California Hardware Startups (322)

At Revel, we are revolutionizing the way the world’s most critical hardware is controlled—across aerospace, automotive, energy, and manufacturing sectors. Our next-generation software stack combines an intuitive command/control interface, a specialized programming language tailored for hardware control, and a high-performance runtime environment. We empower engineers to build, test, and deploy critical systems rapidly, reliably, and safely.

Red 6 is an innovative Augmented Reality (AR) technology startup leading the way in synthetic air combat training. Our primary technology, supporting our ATARS product, enables pilots to simulate the cognitive challenges of flying while accessing realistic, scalable training in dynamic outdoor environments

Doodle Labs designs and produces industrial-grade wireless networking solutions. The company focuses on mesh networking for robotic systems, providing high throughput, long-range Mesh Rider solutions for UAVs, UGVs, AMRs and other robotic applications. The company’s Helix Mesh Rider Radio was developed with sponsorship from DIU and is the Blue UAS program’s datalink of choice. Doodle Labs was named one of Fast...

Headquartered in sunny Los Angeles, GrayMatter Robotics is an AI robotics company that builds the factories of the future today, empowering people, creating safer workplaces, and shaping a more prosperous society. We build next-generation factories that transcend human constraints, driving exponential productivity and sustainable economic growth. Our technology brings together robotics, Physical AI, and human ingenuity to create intelligent systems...

Treeswift builds physical AI for labor. We use robotics and machine learning to help the people who do real work get more done, starting with the crews who keep the electric grid running,.

CMC Rescue (now CMC) designs, manufactures, and sells life-safety equipment for technical rescue, rope access, and other work-at-height applications. Its products include hardware, harnesses, straps, packs, belts, and related equipment for rescue and work-at-height professionals. The company also offers rescue training through CMC Rescue School and manufactures most of its products in the United States. Customers include fire departments, search-and-rescue...

Introducing Rylo: a powerful little camera that shoots larger-than-life 360º video. Rylo captures everything around you with breakthrough stabilization technology creating beautiful, cinematic video you'll be proud to share. Learn more at https://www.rylo.com and connect with Rylo on Instagram, Facebook, YouTube and Twitter.

PseudolithIC, Inc is a rapidly-growing semiconductor start-up company based in Santa Barbara, CA pioneering heterogeneous integration for radio-frequency integrated circuit solutions.

Skip's mission is to energize cities by making mobility accessible to everyone. We believe this requires designing every aspect of a micromobility network from the ground up. This includes custom vehicle hardware, the software-defined fleet management system and ground operations for safety and recharging. Our success will make it easier for everyone to work, play and connect in their communities.

Faststream Technologies is a global product engineering services company headquartered in Los Angeles, with a design center in Bangalore, India. Specializing in product and system engineering, the company focuses on IoT, semiconductor design, and AI infrastructure. They partner with Fortune 100 and 500 clients to develop hardware and software systems, offering expertise in digital transformation, big data, and embedded software...

Bolt Graphics is a semiconductor startup building the fastest and most efficient graphics processors. Power consumption continues to rise with minimal performance improvements, resulting in increased cost and negative environmental impact. Hardware hasn’t kept up with consumer expectations, especially in industries like architecture, engineering, film, advertising, gaming, & scientific research. Our customers came to us to solve their two main problems:...

Our bet with Meter is simple: we’ll all use the internet more than we do today. That future depends on networking infrastructure—the invisible plumbing powering every application, space, and data center. But today’s infrastructure is dated and inconsistent, so we’re rebuilding it from the ground up. We design the hardware, write the firmware, build the software, deploy the networks, and run support. It’s...

Stash Hotel Rewards is a loyalty program for a network of independent and boutique hotels across the United States, Canada, Mexico, and the Caribbean. Founded in 2010 and based in Palo Alto, California, the company allows travelers to earn and redeem points for free nights at unique properties, providing a compelling alternative to generic hotel chains. It is the largest...

Fidus specializes in leading-edge electronic product development. Our hardware, software, FPGA and signal integrity teams architect, design and deliver next-generation products for clients in emerging technology markets. We build long-term relationships by consistently exceeding expectations. Since 2001, Fidus has completed nearly 3000+ projects for 400+ customers in a variety of industries. By leveraging in-house expert knowledge and utilizing industry leading tools,...

Atomic Semi is building a small, fast semiconductor fab. We’ll build the tools ourselves then quickly push them to more advanced geometries. We’re building a small team of exceptional, hands-on engineers to make this happen.

Reshaping technology interaction with premium hardware accessories.

Throne Labs is a technology company on a mission to meaningfully expand public restroom access. They design and operate a network of smart, self-contained, and modular portable restrooms that leverage IoT sensors and data-driven servicing to ensure high standards of cleanliness and accessibility. Their tech-enabled, solar-powered units are designed for rapid deployment in urban areas, parks, and transit hubs.

We see a future where the cannabis experience is built on community, science, and safety. Puffco was founded with the mission to bring the world the best possible portable vaporizer. Using the most advanced technology around and our knowledge of what our community wants, we did just that. The Puffco Peak is our flagship product, and the industry’s best portable...

Mesh Optical Technologies manufactures advanced optical systems at scale.

RheoSense is a Bay Area high-tech company developing patented VROC (Viscometer-Rheometer-on-a-Chip) instruments for viscosity measurement and material characterization. Its MEMS- and microfluidics-based viscometers require very small samples, support Newtonian and non-Newtonian fluids, and provide accurate, repeatable results. RheoSense serves biotechnology, pharmaceutical, protein-therapeutics, chemical, coatings, electronics, food, petrochemical, and research customers through instruments across laboratory and production environments and academic research...