Top California Semiconductor Startups (52)

Neurophos is an Austin-based semiconductor company developing high-performance, energy-efficient photonic AI inference chips. Instead of traditional electronic circuits, we use silicon photonics and an active, programmable metasurface to perform matrix multiplications at the speed of light. Our optical cells are 10,000x smaller than traditional photonic components, enabling unprecedented density for an optical system. As AI adoption accelerates, data centers face significant...

Pivotal Systems provides best-in-class smart flow monitoring and process control technology designed for the global semiconductor and high-tech industries. Pivotal’s portfolio includes its patented Gas Flow Controllers (GFC™) and Flow Ratio Controllers (FRC). At Pivotal Systems, we aim to enhance fab productivity and capital efficiency with our innovative solutions.

Mythic develops cutting-edge Analog Processing Units (APUs) utilizing unique analog compute-in-memory technology. This innovative approach aims to deliver highly energy-efficient and cost-effective AI inference solutions. By overcoming the memory bottlenecks inherent in traditional digital architectures, Mythic enables unparalleled performance-per-watt for AI workloads across diverse applications, including data centers, automotive, robotics, and defense industries.

MatX designs hardware tailored for the world’s best AI models: We dedicate every transistor to maximizing performance for large models. For these models, we deliver 10× more computing power, enabling AI labs to make models an order of magnitude smarter and more useful. Our hardware would make it possible to train GPT-4 and run ChatGPT, but on the budget of...

Morse Micro is a fast-growing fabless semiconductor company developing Wi-Fi HaLow solutions for the Internet of Things (IoT) market that can reach 10x the range of conventional Wi-Fi technology and last many years on a single battery. The company was founded by Wi-Fi pioneers and innovators, Michael De Nil and Andrew Terry, joined by the original Wi-Fi inventor Prof. Neil...

Silicon Microstructures, Inc. (SMI) is a premier semiconductor sensor company that specializes in the development and manufacture of MEMS-based pressure sensors. The company provides high-performance solutions for challenging applications across the automotive, medical, and industrial markets. SMI is recognized for creating unique products that offer ultra-low pressure ranges, extraordinary robustness in harsh environments, and an extremely small size for various...

Luminus is a vertically integrated, fast-growing high-tech company that engages in high-power Light-Emitting-Diode (LED) solid-state lighting, lasers, and SiC power semiconductors for a variety of application areas, including industrial UV, IR, medical, projection displays, high-end illumination lighting, horticulture lighting, grid energy storage, EV and automotive industries. Luminus is at the forefront of the ongoing solid-state lighting revolution and SiC power...

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...

At EUV Tech, we enable the frontiers of semiconductor manufacturing and material science through the development of world-leading EUV and soft X-ray instrumentation and techniques.

Braemac, a Division of the Exponential Technology Group, Inc. (rebranded from Symmetry Electronics) is a global leader in the distribution of semiconductor components and electronic systems as well as value-added services. Empowering engineers and developers for over 40 years–Braemac features expert in-house engineers, extensive design-phase support, state-of-the-art distribution, value-add facilities, comprehensive supply chain solutions, and unparalleled customer service. Braemac offers...

Monarch Quantum is a U.S.-based quantum photonics company that designs and manufactures integrated photonics systems, known as Quantum Light Engines™, for quantum computing, sensing, and communications.

Atomica Corp. unleashes the power of Micro Electro-Mechanical Systems (MEMS) to help solve the great problems of our time. Utilizing a uniquely collaborative approach to development and manufacturing, it partners with innovative companies to deliver breakthrough MEMS-based solutions in cloud computing, autonomous vehicles, cell therapy, molecular diagnostics, genomics, 5G, the Internet of Things (IoT), and more. Atomica is the largest...

We are a mixture of software, system, and silicon experts using AI every day to deliver the world's most capable and responsive intelligence.

Baya Systems is driving the next wave of foundational chiplet-based, high-performance, and modular semiconductor systems, with a focus on best-in-class on-chip fabric and communication technologies. By enabling seamless interoperability across a diverse array of industry-standard protocols, Baya Systems empowers best-of-breed compute, communication, and I/O solutions to work together. This approach enhances performance, yield, reusability, composability, development time and cost-efficiency. Named...

ISE Labs is a semiconductor engineering service provider specializing in the assembly, packaging, and testing of integrated circuits (ICs). As a subsidiary of ASE, Inc., the company offers a full spectrum of services, including turnkey solutions, engineering development, production testing, device qualification, reliability, and hardware development services designed to support the semiconductor industry with scalable resources on demand.

We are a semiconductor startup that has brought together a world-class team of ASIC designers, optical communications experts and seasoned investors that excel at creating disruptive technologies. Together, we are building a novel semiconductor technology that will transform the datacenter and telecommunications industries.

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

ElevATE is a leading supplier of innovative, low power, high density components for the design of next generation Automated Test Equipment (ATE). With a proven track record of consistently delivering the highest density, lowest power solutions available, systems designed around ElevATE products have a competitive advantage in the ATE market space and are able to adapt successfully to emerging trends...

Rand Technology is a leading global independent distributor of electronic components and a sophisticated, full-service technology hardware supply chain company offering comprehensive services for NPI, production, and global asset recovery.

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:...