Deep Tech Startups

Rhoic develops a field-induced reactor technology called the Maxwell Reactor, which uses catalyst-coated conductive nanofibers and high-frequency AC fields to run chemical reactions at near-ambient temperature and pressure. Its platform targets distributed, energy-efficient on-site synthesis across chemical markets, from defense energetics to pharmaceutical precursors.

2 investors

RiACT develops RiFLEX, a hardware-agnostic robot operating system and development platform that lets operators and integrators configure, coordinate, and run industrial and collaborative robots through a single interface without traditional programming. It targets manufacturing use cases such as machine tending and palletizing and works across multiple robot brands via OEM partnerships.

2 investors

Ribbon Bio develops cell-free DNA synthesis and analysis products for research and diagnostics applications. The company operates in the biotechnology and genomics sector.

2 investors

Ribolia (瑞博生物) is a pioneer in RNAi technology and small nucleic acid drug development, with research platforms covering drug delivery, chemical modification, and multi-target drug development. The company serves patients with chronic diseases including cardiovascular, metabolic, kidney, and liver conditions through its siRNA pipeline.

2 investors

RiboNova is a biopharmaceutical company developing small molecule drugs and precision medicines targeting transfer RNA for the treatment of mitochondrial disease. The company operates a proprietary drug discovery platform with a Phase-2 ready candidate in its pipeline.

2 investors

CM Venture is a science-led venture capital firm investing in emerging hard tech industries, including advanced materials, synthetic biology, energy storage, industrial decarbonization, industrial software, IoT, and smart manufacturing. Headquartered in Shanghai, it focuses on Chinese tech investments while maintaining a global portfolio across Asia, North America, and Europe.

2 investors

RideFlux develops autonomous driving technology aimed at making mobility safer and more accessible. The company builds self-driving systems to address transportation and road safety problems.

2 investors

RISC Zero builds verifiable computation technology using zero-knowledge proofs, allowing anyone to cryptographically confirm that a computation's output is correct regardless of who ran it. It targets use cases such as proving financial transactions are performed correctly and compliantly while preserving privacy, and addressing trust gaps in software supply chains.

2 investors

Robominder builds perception, spatial intelligence, simulation, and robotics software that converts physical-world data into business actions for robotics and industrial applications.

2 investors

Robros develops full-stack humanoid robots designed to work alongside humans in industrial environments, building both the hardware and AI intelligence required for autonomous collaboration. The company creates a Physical AI platform based on biped locomotion and real-time control technology that enables robots to operate naturally in real-world settings.

2 investors

Rock Zero is a technology company with chemistry, materials, and process engineering teams working on chemical and materials science-based technology. The page does not describe a specific product or target market beyond its technical focus.

2 investors

Rocket Link Technologies is a Japanese aerospace company developing rocket technology and propulsion systems. The company is based at JAXA's Space Science Institute in Kanagawa Prefecture.

2 investors

Rockstart is an investment and accelerator platform that supports early-stage companies.

2 investors

Rocsole develops hybrid process flow management systems and software with sensor technology for safety-critical and pollution-challenged industries. The company focuses on cleantech solutions that improve operational safety, cleanliness, and efficiency across sectors including oil & gas and medtech.

2 investors

RodRadar manufactures excavator bucket units embedded with ground-penetrating radar technology to detect buried utilities in real-time during excavation. The system alerts operators to the presence of gas, power, communications, water, and other underground infrastructure to prevent accidental strikes.

2 investors

Roebling provides engineering services for industrial infrastructure projects, using a shared live platform with a first-principles physics solver to produce defensible analyses from initial study through final investment decision (FID). It serves capital project teams, R&D and innovation groups, and investors conducting diligence in the industrial sector.

2 investors

Rollup provides software and workflows designed to accelerate the development and iteration of complex hardware systems across industries including aerospace, robotics, and nuclear technology.

2 investors

Rosebud Biosciences develops therapies for rare genetic diseases in children by creating organoid models that replicate patient genetic mutations and using drug screening to identify potential cures. The company uses human-derived organoids combined with robotics and machine learning to accelerate drug discovery across cardiac, hepatic, neural, and kidney disease targets.

2 investors

RovrStack is developing an agentic operating system intended to power space-related operations. The company positions its product as an AI-driven platform for the space industry.

2 investors

ReturnZero (리턴제로) is a South Korean company developing AI-based speech recognition technology, positioned as an interface to help people interact with machines more naturally.

2 investors

Saab is a global defense and aerospace company that develops and sells solutions to governments and defense organizations across over 100 countries.

2 investors

Sabi is a California-based startup building a wearable beanie with custom neuroimaging sensors and ASICs that reads brain signals to convert thoughts and attempted speech into text. It combines a large neural decoding dataset with a Brain Foundation Model to map brain activity to thoughts and drive AI agents.

2 investors

Sabrewing Aircraft Company designs and builds aircraft, with development based at Hayward Executive Airport in California.

2 investors

SafeFields develops electromagnetic emissions reduction technology for electrified vehicles to protect public health from unhealthy emissions. The company serves vehicle manufacturers and end users in the automotive and environmental protection sector.

2 investors