Semiconductors Startups

RFA Electric offers an autonomous analog circuit design platform that takes customer specifications through a conversational assistant and uses an autonomous engine to handle circuit design, simulation, optimization, and physical layout across millions of topologies. Its target applications include analog AI accelerators, neuromorphic architectures, autonomous vehicles, humanoid robotics, and wireless systems.

1 investor

RiseTech develops high-yield Electrochemical Deposition (ECD) solutions for semiconductor manufacturing, targeting the challenges of heterogeneous integration. Its technology provides fast metal fill with nanometer-scale uniformity for chip makers.

1 investor

Raana designs and manufactures Czochralski crystal growth systems and produces high-purity single crystals such as Silicon, Germanium, Nd:YAG, and Lithium Niobate for semiconductor, defence, photonics, and quantum applications. Based in India, it positions itself as the country's first domestic crystal growth technology company serving institutions and strategic-materials supply chains.

1 investor

Rubber Interposer manufactures electronic interconnect components for telecommunications, consumer electronics, and other industries requiring high-frequency signal transmission. The company specializes in custom interposer solutions designed for miniaturization, signal integrity, and reliability in compact electronic devices.

1 investor

S-Graphene is a materials company that develops graphene application technology, including mass-production methods for forming nano-holes in graphene and growing graphene on metal. It supplies customized nano-materials for next-generation products in industries such as secondary batteries (as anode and separator materials), semiconductors, filters, and bio applications.

1 investor

에스앤에스텍(SNS Tech) is a Korean advanced-materials company that develops and produces blank masks, pellicles, and EUV-related materials used in semiconductor photolithography. It serves the global semiconductor manufacturing ecosystem with materials for fine-pattern and extreme-ultraviolet (EUV) processes.

1 investor

S2C (思尔芯) develops EDA tools for semiconductor chip design and verification, including architecture design/modeling software, hardware emulation and prototyping systems, formal verification, and debug and cloud-based compute management platforms. Its products serve IC design companies working on SoCs for automotive electronics, CPU, AI, 5G, and cloud computing applications.

1 investor

SAPIEN develops Micro-LED display driver solutions, including LEDoS (LED-on-Silicon) backplane technology for compact, low-power micro-display engines and MPD (Micro Pixel Driver IC) for backlight and display applications. Its products target AR smart glasses, head-mounted displays, military displays, TVs, and signage, and the company offers custom design from development through mass production.

1 investor

SCALE Lasers develops miniaturized mid-infrared quantum cascade surface-emitting lasers based on a VCSEL-style architecture, aimed at making high-end spectroscopy available in compact components. Its technology targets applications that move lab-grade diagnostics into everyday devices.

1 investor

SEA E2E manufactures wet-process equipment used for substrate applications including photovoltaics, semiconductors, thin film, PCB, and FPD/LCD, offering both batch and inline machines that perform texturing, polishing, and chemical cleaning. The equipment can be customized based on the specific application and process type.

1 investor

SealSQ develops quantum-resistant semiconductors and cybersecurity solutions for protecting critical infrastructure including EV charging stations and enterprise systems. The company designs quantum-safe chips and platforms to address emerging quantum computing threats.

1 investor

SeekWave Technology (希微科技) designs highly integrated wireless communication chips, including Wi-Fi 6/6E/7 and Bluetooth combo SoCs, for customers needing high-performance, low-power complete chip solutions. Founded in 2020, the company develops products such as Wi-Fi and Bluetooth combo chips in China.

1 investor

SeeReal Technologies develops holographic 3D display technology for automotive applications including head-up displays and dashboards, as well as for desktop use in engineering, medical imaging, video conferencing, and gaming.

1 investor

SEMIFIVE provides custom silicon solutions including domain-specific system-on-chip platforms, design and engineering services, and turnkey manufacturing support. The company serves customers seeking to develop semiconductors and custom silicon products.

1 investor

SemiAI builds AI systems designed for semiconductor manufacturing process data, including overlay/defect prediction, human-in-the-loop root cause analysis, and domain-fusion ML, to automate decision-making on fab production lines. It serves semiconductor manufacturers, combining AI engineers, process specialists, and system engineers to make fab operations more autonomous.

1 investor

SemiBlocks develops SCXO crystal oscillator products based on its patented Smart-Xtal technology, which compensates for temperature and crystal stress to reach OCXO-level precision without an oven. Its timing components target 5G/6G networks, IoT, datacenter, and 4G markets that need low-power, stable, and compact oscillators.

1 investor

Semikron Danfoss develops power electronics and semiconductor solutions for industrial applications, with a focus on enabling customer decarbonization and advancing circular economy principles. The company is committed to carbon neutrality in its operations by 2030 and embedding sustainability across product development, manufacturing, and supply chain management.

1 investor

SemiTorr is a distributor of high-purity components and equipment for semiconductor manufacturing and industrial applications, including valves, pumps, filters, and specialized instrumentation. The company serves the semiconductor and industrial sectors through multiple distribution locations across the United States.

1 investor

Semron develops 3D CapRAM, a technology that performs computation inside 3D flash memory to address AI compute and memory demands. The company works on stacking compute layers on silicon in the semiconductor and AI hardware space.

1 investor

Sensesemi designs System-on-a-Chip solutions for IoT and IoMT applications with embedded AI for edge processing and ultralow power consumption. The company serves connected device manufacturers and medical technology developers seeking intelligent, energy-efficient chip designs.

1 investor

Sensorium Technological Laboratories is a Vanderbilt University spin-off that designs nanostructured metamaterials with tailored photonic properties, combining hyperspectral imaging with AI for sensing, detection, and metrology. Its products target the semiconductor industry, including defect detection for advanced packaging, along with gas detection and climate-tech applications.

1 investor

Serinus Labs develops semiconductor-based sensing systems that detect and interpret chemical signals for practical applications. The company emerged from UC Berkeley research and designs sensor technologies intended for high-volume silicon manufacturing and field deployment.

1 investor

Seta Connectivity develops miniaturized MEMS antenna technology based on principles of quantum physics, acoustics, and RF engineering to overcome traditional antenna size limits. Its ultra-compact, high-performance antennas target applications including consumer electronics, wearables, satellite communications, and medical implants.

1 investor

SGService provides technical support for cause analysis and problem solving in research, development, and manufacturing using X-ray non-destructive testing, CT imaging, and physical analysis techniques. It also distributes X-ray and electron detection instruments from manufacturers such as Excillum and DECTRIS for scientific and industrial laboratories, including semiconductor (SiC) wafer inspection.

1 investor