Semiconductors Startups

pSemi develops semiconductor technologies and RF integrated circuits, specifically the UltraCMOS+ silicon-on-insulator platform that combines high linearity and power handling for radio frequency applications serving telecommunications and industrial customers.

1 investor

onsemi is a semiconductor manufacturer that designs and produces products for various applications, providing design tools, technical documentation, and sales support to customers building electronic systems.

1 investor

Purium manufactures chemical filtration products such as V-Type, cylinder, stacked, and panel filters used in semiconductor cleanrooms, MAU outdoor air handling units, FFU fan filter units, and tool-side equipment. The company also offers hydrogen removal devices, wastewater treatment systems, used equipment sales, and system engineering including CDS and VMB design and fabrication.

1 investor

PxE develops holographic imaging technology that captures fused RGB, infrared, and depth data from a single snapshot using one lens, sensor, and chip. Its edge-processed vision and perception systems target cost-sensitive and portable platforms across multiple industries, offering high image quality and depth accuracy in all lighting conditions.

1 investor

Qinvicta develops semiconductor IP for building quantum-resilient security chips and Hardware Security Modules, implementing NIST-standardized post-quantum cryptography algorithms (ML-KEM, ML-DSA, SLH-DSA). Its FPGA-proven, silicon-verified IP targets secure communication, data storage, and financial transactions for financial- and government-grade applications.

1 investor

QPICs operates a photonic integrated circuit (PIC) fabrication facility serving the quantum computing industry. The company provides custom design capabilities and rapid prototyping to quantum companies seeking to reduce size, weight, and power in their photonic systems.

1 investor

Qualinx produces the QLX3Ax, a low-power digital RF front-end chip for GNSS and IoT applications that supports multiband reception across L1, L2, L5, and L6 bands. The device delivers up to 10x lower power consumption than existing RF front-end solutions while enabling reconfigurable radio capabilities for ODMs and OEMs.

1 investor

Quantaglion develops the QNT100, a hardware true random number generator that uses the natural decay of atomic nuclei to produce physical randomness rather than software-based pseudo-random numbers. The semiconductor-based entropy device is aimed at post-quantum security infrastructure and applications such as AI, PQC, automotive, and HSMs.

1 investor

Quantum Motion develops utility-scale quantum computers built on silicon-spin architecture, using standard silicon processing compatible with existing semiconductor foundries and designed to fit into data centres. Its scalable platform targets clients pursuing breakthroughs in fields such as chemistry, medicine, and artificial intelligence.

1 investor

Q-Pixel develops polychromatic RGB microLED technology, covering material growth, device fabrication, and display assembly, and operates as a fabless microLED display innovator. Its technology targets large-area foldable displays as well as smaller displays such as phones, tablets, computers, and wearables (smartwatches/AR/VR) in the display industry.

1 investor

QuickLogic is a fabless semiconductor company that develops embedded FPGA (eFPGA) IP, discrete FPGAs, FPGA SoCs, and FPGA chiplets, along with user tools, for critical infrastructure, aerospace, and defense applications. Its products target hardened, secure, and long-lifecycle systems operating in extreme environments.

1 investor

Quicksilver Biosciences is developing a CMOS-integrated biosensor platform that uses proprietary sensing techniques to reach higher sensitivity in a portable, lower-cost form factor. The company is currently operating in stealth mode.

1 investor

R2 Semiconductor develops power management semiconductor technology, including envelope tracking for RF power amplifiers and core power management for multi-core application processors and digital SoCs. Its products aim to improve power efficiency, reduce heat, and shrink form factors for chip and device developers.

1 investor

Rakon designs and manufactures high-performance frequency control products such as temperature compensated crystal oscillators (TCXOs), oven controlled oscillators (OCXOs), crystals, and GNSS receiver modules. Its components serve the telecommunications, 5G, AI data centre, space, defence, and positioning markets.

1 investor

Rambus provides silicon intellectual property components including memory interface controllers and cryptographic security processors for semiconductors and IoT devices. The company specializes in DDR memory solutions, Root of Trust security engines, and hardware cryptographic accelerators serving data center, automotive, and embedded system markets.

1 investor

RAMXEED Corporation develops and supplies non-volatile RAM memory products, offering a reliable memory product line to business customers. Formerly Fujitsu Semiconductor Memory Solution Limited, the company specializes in semiconductor memory technology.

1 investor

Reality AI develops an Edge AI software development environment that combines signal processing, machine learning, and anomaly detection for microcontrollers and microprocessors, enabling industrial, automotive, and commercial applications with minimal hardware footprint impact.

1 investor

Red Leader develops signal processing IP, integrated ADC/DAC silicon, and end-to-end systems for 3D lidar sensing, using full-waveform processing to improve resolution, range, and accuracy of low-cost sensors without added hardware. Its technology targets safety-critical applications requiring high-speed, low-latency 3D data.

1 investor

RedSemiconductor develops processor technology for edge computing applications, targeting use cases such as low-power local AI inference, in-vehicle sensor fusion, high-bandwidth data communications, and energy efficiency optimization.

1 investor

Reduced Energy Microsystems (REM) designs low-power silicon chips for embedded computer vision, combining asynchronous resilient technology with a custom neural network architecture to run deep learning inference and traditional vision workloads in a small power envelope. Its chips target devices such as augmented reality hardware, body-worn cameras, and autonomous robots.

1 investor

Refractive Labs develops design tooling for silicon photonics, aiming to automate and accelerate the creation of photonic chips used in data center and AI compute interconnects. It targets the semiconductor and photonics industry, where optical links increasingly replace electrical interconnect for high-bandwidth, low-latency computing.

1 investor

REMEC Broadband Wireless Networks designs and manufactures microwave and millimeter wave radios for wireless connectivity, serving mobile carriers, service providers, enterprise, and government customers. The company also provides block-up converters to the satellite communications market through its SAGE SatCom business arm.

1 investor

Renesas is an embedded semiconductor solution provider serving automotive, industrial, infrastructure, and IoT industries. The company designs and manufactures a broad portfolio of high-performance computing, embedded processing, analog & connectivity, and power semiconductor products.

1 investor

Resona Semiconductor is a semiconductor company; its public page provides minimal detail beyond a branding tagline.

1 investor