Deep Tech Startups

Reactory develops patented maturation technology that accelerates spirit aging from decades to days while reducing production costs and environmental impact. The technology enables distilleries to produce aged spirits at scale using controlled maturation with minimal material waste and energy consumption.

1 investor

ReactWise develops AI tools for chemistry and chemical engineering, enabling researchers and engineers to accelerate molecular discovery and reaction optimization. The company combines machine learning with chemistry automation and high-throughput experimentation platforms.

1 investor

RealEye is a neuromarketing research company that collects and interprets neurological and neurophysiological insights to measure the effectiveness of advertising, packaging, product design, and communication campaigns. The company operates according to the NMSBA Code of Ethics for the Application of Consumer Neuroscience in Business.

1 investor

RealFast is an applied-AI strategy and engineering firm that pairs small teams of senior engineers with AI agents to build software systems tied to a specific business metric agreed before any code is written. It works with software-driven enterprises facing urgent, high-stakes problems, delivering owned products and platforms rather than billable hours.

1 investor

Realities.io builds spatial photography and photogrammetry experiences for VR/AR, including puzzle content for headset users. The company develops 3D-captured environments and interactive experiences in the gaming and immersive media category.

1 investor

Reality01 (Dubbl) uses patent-pending 3D capture hardware and a software pipeline to turn real-world objects and artworks into detailed digital replicas for virtual and spatial computing experiences, including on devices like Apple Vision Pro. It serves auction houses, artists, galleries, collectors, and public institutions, and can also produce virtual sets, films, and photographic stills.

1 investor

RealSeq Biosciences develops RNA fragmentomics technology for advanced diagnostics, enabling detection and analysis of RNA fragments to discover new biomarkers and provide deeper insights into disease. The company serves the healthcare and diagnostics industry by unlocking previously inaccessible biological information from RNA.

1 investor

RealTech Network runs events for deeptech founders working in AI, robotics, national security, manufacturing, and energy. It hosts gatherings with speakers, with an event stated for London, United Kingdom.

1 investor

Recast Systems develops sensing, modeling, and operational infrastructure for precise weather, working across atmospheric science, software, hardware, and field operations.

1 investor

RECHO AI develops advanced sensing technologies and hardware solutions for industrial and commercial applications. The company leverages expertise in RF hardware, data pipelines, and signal processing to transform complex research into practical sensing systems.

1 investor

Redpoint Positioning provides real-time location system (RTLS) technology delivering location services for industrial and mission-critical operations in harsh environments such as warehouses, chemical plants, and tunnels. Its system offers millisecond-level accuracy across spaces ranging from single rooms to large multi-building campuses, aimed at improving safety, defect reduction, and productivity.

1 investor

Redgrove develops infrared camera sensors using nanomaterials and advanced antenna designs for applications in defense, security, driver assistance, and emissions monitoring. The technology targets cost-effective, high-sensitivity thermal imaging solutions for industrial and commercial markets.

1 investor

Redivivum Technology provides AI-powered software for automated identification, inspection, and listing of garments in the second-hand fashion and circular economy sector. The platform serves resale service providers, vintage stores, and 3PL companies by automating garment processing and digital inventory creation.

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

RedShiftBio develops analytical technology that provides real-time measurement of biomolecular structure and concentration, aimed at supporting decisions in biopharmaceutical development and manufacturing.

1 investor

Reelwell develops wired drillpipe technology for the oil and gas downhole drilling sector, offering digital telemetry, power delivery, and improved reliability for both land and offshore drilling operations. Its technology aims to reduce well construction costs and environmental emissions through drilling efficiency gains.

1 investor

Refactor is a solo-employee venture capital firm run by an investor named Zal that invests $1–2M in US seed-stage hard tech startups. The firm manages $300M across five funds.

1 investor

Refamo provides fatigue assessment technology for welded steel structures and assets operating under dynamic loads, enabling lifecycle monitoring and durability optimization.

1 investor

Refiant builds a suite of compressed, energy-efficient AI models that run on edge devices or in the cloud, deployable directly, via configuration, or through an API. Its approach makes model context abundant rather than relying on RAG, chunking, and summarization to work around limited context windows.

1 investor

Reflector provides a machine learning platform that predicts functional responses of small molecules across diverse cellular contexts to prioritize drug candidates earlier in the discovery process. The tool helps pharmaceutical teams assess phenotypic effects, identify off-target liabilities, and classify mechanisms of action before committing to expensive downstream experiments.

1 investor

Refoxy is a science-driven company focused on drug discovery, medicinal chemistry, and bioinformatics. The team page emphasizes deep science and collaboration, but the page provides only placeholder text about the company's specific work.

1 investor

Regenosca develops TissueSpan, an absorbable mesh implant that prompts the body to attract and organize its own cells for soft tissue regeneration, reinforcing or replacing damaged tissue. Its initial target application is urethral stricture repair, with potential use across a range of regenerative surgical interventions.

1 investor

Rekursiv.ai builds autonomous systems of AI models that act as "AI Scientists," forming hypotheses, designing and running experiments, and discovering new knowledge such as novel machine learning algorithms. The company targets research and AI development, aiming to scale automated scientific discovery.

1 investor

Reliability Engine develops sensing and software that monitors liquid-cooled AI infrastructure by analyzing coolant chemistry, thermal systems, and GPU performance data to detect cooling issues before they impact compute output. The product serves AI data center operators managing high-density infrastructure.

1 investor