Top California Semiconductor Startups (45)

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.

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.

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...

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:...

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...

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

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.

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...

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.

We produce AI-designed analog chips. Our AI-based designs are faster and more optimized, enabling us to produce custom chips at scale. This means that customers can get the chip they want, not just what's on offer. We are a team of chip designers and AI engineers, who are bringing our skills together to transform electronics.

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...

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...

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.

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...

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...

Principal Service Solutions is a leading technical workforce provider entrusted to safeguard the quality of operations while lowering costs and meeting business goals. Our customized solutions evolve over time with your changing business needs, providing a risk-free alternative to traditional workforce strategies.

Iridia™ Inc. strategically combines proprietary enzymology and semiconductor technology to revolutionize long-term data storage. By leveraging DNA, nature’s perfected data storage system, the company has developed a durable, decodable, and ultra-high-density semiconductor chip solution for data storage, that significantly reduces the infrastructure requirements and environmental impact compared to current approaches. Iridia’s solution is the world’s first affordable, integrated data storage...

Roviero has created AI Processor accelerator IP and associated software stack as a solution that scales across multiple applications. Roviero has solved the ultimate problem of scalability, programmability, power consumption with a hybrid approach to Hardware-Software. The IP is available today to integrate into our customer's SOC. Roviero is delivering FPGA based platforms today along with the software. The FPGA platform...

At Multiscale AI, we’re revolutionizing semiconductor manufacturing with advanced, agentic AI. We partner with leading semiconductor manufacturers to tackle their most complex Semiconductor Manufacturing Process Optimization (SMPO) challenges. Our platform combines Bayesian digital twins, purpose-built ML models, and AI agents to extract actionable insights from limited silicon data and physics simulations. By unifying fragmented data, delivering domain-optimized ML, and enabling scalable, fab-ready...