Deep Tech Startups

Relling builds and deploys robotic manufacturing workcells as pre-qualified products rather than custom engineering projects, reducing installation time and enabling faster automation deployment on American factory floors. The company sells integrated workcells that are software-reconfigurable for different parts, addressing the gap between advancing robotics technology and slow, artisanal deployment practices.

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

Renasens develops a CO₂-based, waterless recycling technology that separates blended textile waste such as polycotton into reusable high-quality fibers for the fashion and manufacturing supply chain. The deeptech company works with research institutes, spinners, manufacturers and brands, with a focus on Europe's circular manufacturing ecosystem.

1 investor

Rencom develops custom AI models trained on a company's proprietary data and deploys in-house AI agents for enterprise clients. It focuses on building tailored frontier models and autonomous agents for organizations.

1 investor

rENIAC builds a Data Engine that acts as a drop-in database accelerator using FPGA, CPU and tiered storage (DRAM+SSD) to lower latency and increase throughput for SQL, NoSQL and Graph databases. It serves organizations with real-time, data-centric applications such as recommendation engines, online AI/ML models, fraud prevention and payment processing.

1 investor

Renuvi develops a long duration energy storage system based on its proprietary Salt-Matrix sodium-based battery electrochemistry, aimed at providing reliable clean energy for the power grid. The company positions its technology as a manufacturable battery with higher energy density than other sodium-based designs.

1 investor

Reopia develops advanced optical solutions that prevent the onset and progression of myopia in children. The company addresses the growing global epidemic of nearsightedness through medical devices targeting pediatric eye health.

1 investor

RepAir develops electrochemical carbon capture technology for industrial emitters and direct air capture applications. The company serves industrial operators with diluted CO₂ streams (0-5%) as well as organizations seeking permanent carbon removal solutions through direct air capture and storage (DACS).

1 investor

Reprogram Biosciences develops an in vivo immunotherapy that uses a therapeutic gene cocktail delivered via lipid nanoparticles to reprogram solid-tumor cancer cells into immune-like cells. The company operates in the biotech and cancer therapeutics field, applying gene reprogramming and AI-driven bioinformatics to develop cell therapies for solid tumors.

1 investor

ResFrac develops a fully coupled hydraulic fracturing and reservoir simulator, providing physics-based simulation software and consulting services for oil and gas operators to optimize well spacing, completion design, enhanced oil recovery, and geothermal systems. It serves the North American shale industry, from small independents to supermajors and national oil companies.

1 investor

Reshape Systems provides AI-driven risk analysis software for complex systems including autonomous vehicles, drones, and industrial infrastructure. The platform uses explainable AI to help engineers prevent failures and operates autonomously with minimal human intervention.

1 investor

ResilienX is a systems integrator for uncrewed aviation ecosystems, connecting multi-vendor technologies into a single coherent, safe, and scalable system for agencies and operators. It offers products including a vendor-neutral data exchange (AAM OptiX), model-based systems engineering, and an in-time aviation safety management system (FRAIHMWORK) supporting the low-altitude economy and advanced air mobility.

1 investor

ReSiTec develops process engineering solutions and produces metal and mineral powders for industrial applications. The company serves various industries requiring custom technology, products, and equipment, with particular expertise in powder and liquid solution handling.

1 investor

Resolian is a Contract Research Organization (CRO) that provides bioanalytical, biomarker, and analytical sciences services to support drug development for pharma and biotech companies. The company specializes in GxP and non-regulated bioanalysis, drug metabolism and pharmacokinetic services, and GMP CMC analytical and materials science across all therapeutic modalities.

1 investor

Resolve Nanotherapeutics is developing RNA drugs delivered via lipid nanoparticles that amplify the body's toxin-clearance pathway to treat severe acute bacterial infections and their chronic complications. Its host-focused therapy targets the immune system rather than the bacteria, aiming to work against antibiotic-resistant infections in critical care settings.

1 investor

Resonant Technologies Group is a company creator and accelerator that builds and operates ventures based on "Resonance Physics," spanning health diagnostics, frequency-based wellness products, immunotherapy, agriculture, audio hardware, and mineral extraction. Its operating companies include Sonaphi, Field Futures, Sourcewave, Divina Biotech, UpTerra, Form Audio, and Manna Vitality, focused on human health, energy, and the environment.

1 investor

ResoSight develops patent-protected technology that captures biometric data through everyday headphones and earbuds, without additional wearables or sensors. Its platform delivers health and wellness insights to consumers using devices they already own.

1 investor

Respiray manufactures a wearable personal air purifier that uses a HEPA filter to capture airborne allergens and protect individuals suffering from allergies and asthma. The device is designed as a portable, hands-free accessory that creates a protective shield of clean air around the wearer's face.

1 investor

RetMap develops next-generation electroretinography sensors and diagnostic medical devices for screening, diagnosis, and treatment of neurodegenerative eye conditions. The company serves ophthalmologists and clinicians seeking to detect and manage retinal diseases and prevent vision loss.

1 investor

Revadix develops first-in-class small molecule therapies targeting the EPAC1 signalling pathway to treat atrial fibrillation, addressing the underlying disease mechanism rather than symptoms. Its lead asset AM-001 is entering IND-enabling studies while a second EPAC1-targeting program is in lead optimization, aimed at cardiac arrhythmia patients.

1 investor

Revagenix is a precision-therapeutics company that develops drugs for serious chronic diseases, starting from the underlying biology and unmet clinical needs. Its lead program, Rev-56, is an inhaled therapy with a novel mechanism of action designed for non-CF bronchiectasis (NCFB).

1 investor

Revascular Bio develops cell therapy treatments using vascular endothelial stem cells to address diseases caused by vascular dysfunction, including chronic wounds, severe limb ischemia, and genetic blood disorders. The company targets intractable diseases with angiogenic therapy, angiocrine therapy, and protein production platforms.

1 investor

REVCOO develops and industrializes CarbonCloud®, a proprietary retrofit-ready technology that captures, purifies, and conditions CO₂ directly from industrial post-combustion flue gases into ready-to-use high-purity liquid CO₂. It serves industrial companies pursuing Net Zero decarbonization pathways.

1 investor

Revelen.AI uses artificial intelligence and machine learning to match ballistics evidence, helping law enforcement identify weapons and suspects and solve firearms crimes faster. Its technology relies on mobile forensics devices and AI/ML processing to deliver real-time crime intelligence for police investigations.

1 investor