Healthtech Startups

RainStella Tech (RST) builds AI-enabled virtual healthcare software, including a cloud-based EMR, a surgical workflow assistant, and a health information exchange platform for clinical personnel, healthcare systems, and emerging healthcare markets. It also provides professional services for strategy, technical design, integrations, and infrastructure deployments in the healthcare sector.

1 investor

RAIsonance builds AI that analyzes the sound of human coughs to screen for respiratory diseases, support physician evaluations, and monitor chronic respiratory conditions. It serves healthcare use cases within the respiratory health domain.

1 investor

Rakuten Medical is a global biotechnology company that develops and commercializes precision cell-targeting photoimmunotherapy treatments for cancer using its proprietary Alluminox platform. The company focuses on creating innovative cancer treatment options and bringing them to patients worldwide.

1 investor

RAM Medical Innovations develops medical devices for preventing amputations in vascular patients, specifically the Mubin-Y Sheath, a patented bifurcated sheath technology with integrated fixed wire design.

1 investor

RamSoft develops DICOM software for medical imaging applications. The company was founded in Toronto and presented its initial imaging software at RSNA in 1994.

1 investor

Rancho Family Medicine operates a family medical practice and organizes community events to help prospective patients meet physicians before establishing care relationships.

1 investor

Rand operates RandGallery, an NFT marketplace built on the Algorand blockchain. Artists can mint and list work directly, and collectors can browse and trade Algorand-based NFTs, with the platform relying on the chain's low transaction fees and quick settlement times.

1 investor

Rani Therapeutics develops oral drug delivery technology using robotic capsules to replace injectable biotherapeutics, addressing the challenge of delivering biologics through the gastrointestinal tract without needles. The company targets patients with chronic conditions who currently require painful injections.

1 investor

1 investor

Rapid-myco Technologies develops bacteriophage-based diagnostic tests for detecting mycobacterial infections in humans and livestock, with rapid turnaround times. The company offers tests for diseases including Johne's disease in livestock and tuberculosis in humans and animals.

1 investor

Rapid Novor develops protein sequencing software and methods for antibody analysis, combining bioinformatics and mass spectrometry technology. The company specializes in proteomics services for clients requiring high-throughput antibody sequencing.

1 investor

Rapid Nexus Nanotech Wound Solutions develops a regenerative medical device technology (Hemastyl) that aims to repair nerves, muscle, and vasculature to heal chronic non-healing wounds and prevent amputations. It targets patients with diabetes, trauma, and peripheral vascular disease in the peripheral neuropathy and diabetic foot ulcer markets.

1 investor

Rappta Therapeutics develops small molecule compounds that reactivate protein phosphatase 2A (PP2A) to treat cancer by restoring the enzyme's tumor suppressor function. The company targets the underlying mechanism of protein hyperphosphorylation that drives cancer progression.

1 investor

Rarebird produces specialty coffee containing paraxanthine (Px), a metabolite of caffeine that delivers energy and focus with fewer side effects than traditional caffeine. The company sells directly to consumers seeking smoother energy, better sleep, and reduced jitters compared to conventional coffee.

1 investor

Rarebreed Veterinary Partners operates a network of veterinary practices across the Northeast, providing management support, technology, and human resources services to help practices focus on patient care. The company serves veterinary hospitals, urgent care clinics, and specialty emergency facilities across multiple states.

1 investor

Rasyn.ai offers Marigold, an AI research assistant that lets scientists ask research questions, run tools, or delegate entire tasks, returning results such as structures, charts, code, and papers in panels. It provides 54 runnable tools, 40 executing on connected hardware and 14 on hosted endpoints.

1 investor

Rational Vaccines is an investigational-stage infectious disease company developing live attenuated viral immunotherapeutic and prophylactic vaccine candidates targeting herpes simplex virus 1 (HSV-1) and 2 (HSV-2) infections. It aims to treat, prevent, and diagnose herpes and herpes-related diseases, and is also applying its technology toward COVID-19.

1 investor

Ray Studios operates medical clinics in Europe dedicated to laser tattoo and permanent-makeup (eyebrow) removal, using its proprietary RsAP® method and picosecond Picoway® lasers with treatment carried out by doctors. It also provides a diagnostic RTP® statistical projection of the number of sessions needed and a companion app to track removal progress.

1 investor

RAYDIAX develops image-guided therapy assistance solutions, specifically a CT imaging system called TACT designed for minimally invasive medical procedures. The company serves clinical users and patients across the global healthcare system.

1 investor

Rayence develops digital X-ray detectors for dental, medical, veterinary, and industrial applications using proprietary CMOS wafer design, TFT panel, and scintillator technology. The company exports medical device components globally and has been recognized for innovations including flexible intraoral sensors.

1 investor

Reckitt is a global health and hygiene company that manufactures and sells trusted consumer brands for personal care, home care, and health solutions. The company operates across more than 60 countries and serves millions of consumers daily through science-led innovation in health and hygiene products.

1 investor

IOM Consulting Limited provides occupational hygiene, laboratory testing, and professional consulting services to law firms, NHS trusts, rail operators, and industrial clients across the UK. The firm was established in 1990 and was acquired by Rcapital in 2026 as a carve-out from an insolvent parent organization.

1 investor

Revenue Cycle Partners provides revenue cycle management services for behavioral health, substance use disorder, and mental health providers and facilities, including contracting and credentialing, eligibility verification, utilization review, medical billing, and claims and accounts receivable management. The company also offers consulting on process improvement, RCM software implementation, billing transitions, and payer audits.

1 investor

RD8 Labs manufactures a gel-cream skincare product formulated with hyaluronic acid and natural plant extracts for hydration and anti-aging benefits.

1 investor