Deep Tech Startups

Qunnect develops room-temperature hardware for building scalable quantum networks over existing telecommunications infrastructure. The company operates in the quantum networking and deep-tech hardware space.

3 investors

Quobly develops silicon-based quantum computers built on standard semiconductor manufacturing (300 mm wafers), producing rack-scale, data center-ready systems aimed at fault-tolerant, million-qubit machines. Its quantum computers target industrial applications in fields such as chemistry, materials science, optimization, and logistics.

3 investors

RAAD provides on-demand geospatial data capture, delivering 3D models, point clouds, and centimeter-accuracy aerial maps within 48 hours after users outline an area on a map. Its platform integrates with GIS and CAD tools like ArcGIS, QGIS, and Autodesk Civil 3D, and supports running machine-learning inference and custom pipelines directly on captured imagery.

3 investors

Radical AI develops AI software that generates experimental designs for self-driving labs to accelerate materials discovery. The platform enables scientists to input performance goals and receive AI-optimized experiments that are tested and refined automatically, compressing the traditional materials research cycle from years to weeks.

3 investors

RadixArk builds open-source AI infrastructure for large-scale model training and inference, including the SGLang inference engine and Miles reinforcement learning framework. The company provides managed infrastructure and tooling for AI builders ranging from individual developers to enterprises and research labs.

3 investors

Raiinmaker provides ethically sourced, rights-cleared video datasets and a human feedback (RLHF) pipeline for training, testing, and fine-tuning generative AI video and vision models. It uses a global network of over 300,000 human contributors across 190 countries to capture metadata-rich video data and evaluate model performance for AI teams.

3 investors

Ramon.Space builds space-grade computing infrastructure, including digital payloads, data center infrastructure, space storage, and edge computing systems. Its technology targets computing, communications, and chip-level needs for space applications.

3 investors

Rapta offers a Manufacturing Intelligence Platform that deploys AI at the production line to automate manufacturing inspection and process control using video and sensor data. It targets manufacturers seeking to reduce rework, scrap, and labor costs and increase capacity, with a no-code action builder for deploying AI models on standard compute hardware.

3 investors

RaySecur builds MailSecur, a security screening system that uses terahertz (T-ray) imaging to provide real-time 4D visibility into sealed mail and deliveries, detecting concealed threats and contraband such as powders, liquids, and drug-soaked paper that X-ray and metal detection miss. It serves corrections and public safety agencies, government operations, and corporate security and executive protection teams.

3 investors

Reach Industries builds frontier technologies for scientific and industrial work, starting with a visual AI copilot for laboratories. The product aims to assist lab teams with tasks that currently rely on human observation and manual record-keeping in fields such as medicine, energy, and materials.

3 investors

Realta Fusion develops fusion energy technology to generate zero-carbon electricity and industrial process heat for global use. The company aims to decarbonize industrial and energy sectors worldwide through economic fusion-based power generation.

3 investors

Recludix Pharma operates a drug discovery platform that combines custom DNA-encoded libraries (DELs), massively parallel structure-activity relationship analysis, structure-based design, and a family-wide SH2 domain screening panel. It applies this approach first to discover selective SH2 domain inhibitors for treating inflammatory diseases.

3 investors

Rectify Pharma is a biotechnology company developing therapies, with a pipeline that has included work in liver and metabolic disease areas. This page profiles a member of its executive team.

3 investors

Redlen develops semiconductor-based radiation detection and imaging technology, including vertically integrated imaging modules built on in-house Cadmium Zinc Telluride (CZT) sensor manufacturing. Its precision detectors and modules serve radiation imaging and detection applications.

3 investors

Refeyn develops mass photometers that measure the mass of individual molecules directly in solution using label-free single-molecule light scattering, providing rapid assessment of sample purity, molecular interactions, and heterogeneity. Its instruments serve research and biopharma labs for applications such as AAV capsid analysis, antibody aggregate quantification, mRNA-LNP characterization, and protein interaction studies in drug discovery, manufacturing, and structural biology.</parameter> <parameter name="founders">[]

3 investors

Rejuvenation develops proprietary mRNA and lipid nanoparticle technology to safely lengthen telomeres in human cells, targeting cellular aging and diseases caused by short telomeres including pulmonary fibrosis, liver disease, and bone marrow failure.

3 investors

Reka builds AI models and infrastructure for physical-world applications, including a multimodal inference engine and API, video-processing infrastructure for tagging, searching, and reasoning over large video datasets, and a training-data platform (Claru) providing egocentric video, robotics trajectories, and world-model footage. Its products target enterprise users needing scalable, reliable multimodal AI.

3 investors

Related Sciences assembles distributed teams of academic experts and industry veterans to conduct specialized drug discovery and research for biotech companies. The company operates a decentralized R&D model where leading scientists work collaboratively on targeted therapeutic programs.

3 investors

Relay Therapeutics develops small-molecule therapeutics using its Dynamo platform, which combines experimental and computational methods to model protein motion and target proteins considered difficult to drug. Its pipeline focuses on precision oncology and genetic disease.

3 investors

Retein develops a patented molecular separation technology, based on bio-inspired stabilized channel proteins, to recover high-purity resources such as clean water and lithium from water sources. Founded from research at Chalmers University of Technology, it targets industries seeking sustainable recovery of metals, nutrients, and clean water.

3 investors

RIIICO uses AI to convert 3D scan data of factories into pre-classified, CAD-ready 3D models and digital twins for simulation, collaboration, and robot programming. It serves manufacturers and engineering teams, integrating with third-party tools such as Siemens Xcelerator and NVIDIA Omniverse.

3 investors

Rime builds voice AI models designed for real-time human conversation, offering 600+ customizable voices with adjustable accent, pace, and tone. It targets businesses in industries such as healthcare, financial services, and hospitality, and can run inside a customer's own environment for compliance needs.

3 investors

RISE Robotics develops RISE® Cylinder, a fluid-free electro-mechanical alternative to hydraulic cylinders for heavy equipment and machinery that uses belt technology to deliver hydraulic-like forces with significantly greater energy efficiency. The company serves industrial machinery manufacturers and operators seeking to reduce energy consumption and maintenance costs in equipment ranging from liftgates to construction machinery.

3 investors

Robeauté develops a medical microrobot designed to navigate the brain to diagnose and treat neurological conditions, aimed at neurosurgery applications. The company is advancing preclinical work toward first-in-human studies for brain diseases such as glioblastoma.

3 investors