Nov 13, 2025 07:23:33 AM

Companies


Showing 476-500 of 655 companies
YC S20
Rarebird logo

Rarebird

Elevating mental health to be a part of your daily coffee ritual.

We are making coffee for caffeine sensitive people. We do this by producing the world's first caffeine replacement, paraxanthine. It's better than caffeine at waking you up and causes fewer side effects, like anxiety and jitteriness.

YC W15
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ReSchedule Med

We help medical residency programs create and manage their schedules,…

Rescheduling for residency programs. Rescheduling is one of the largest logistics pain points in hospitals and residency programs. Reschedule provides an end-to-end work flow to manage graduate medical education scheduling.

YC S23
Readily logo

Readily

Compliance Tools for Healthcare Organizations

Readily helps healthcare organizations find and close compliance gaps in hours not weeks. We do that by connecting over 100,000 pages of policies, and regulations, enabling staff to conduct research, analysis, and audits faster. This saves them hours of work, boosts readiness, and helps them avoid costly violations.

YC S18
Rebellyous Foods logo

Rebellyous Foods

Rebellyous Foods is a food manufacturing technology and production…

Rebellyous Foods is a food manufacturing technology and production company defined solely to catapult meat alternative production toward price parity with animal-based meat. Rebellyous implements novel food manufacturing equipment and processes in large-scale production to produce low-cost plant-based meat at high volumes. These goals are achieved through uniquely designed food products, the use of high-throughput manufacturing automation and ‘smart’ production centers, and the development and utilization of new innovative low-energy manufacturing tools. Working closely with industry partners, Rebellyous makes plant-based meat sustainable, affordable, and widely available.

YC W21
Recover logo

Recover

Government-funded online addiction treatment

Recover provides more effective and affordable addiction treatment via telemedicine. We partner with local governments to save lives and taxpayer dollars. More than 20 million Americans struggle with addiction, but less than 10% of people who need it receive treatment. For those that do, it usually does not work - only 8% get better. Most of this treatment is funded by governments, and goes to programs that are frequently predatory, and focus more on profit than people. We have created an effective, accessible, and affordable solution: Recover. We offer a proven approach using medication and counseling, that can improve outcomes for over 70% of patients. It reduces overdoses by 80%, death by 50%, and has years of research and application showing it works. Despite how effective this medication can be, most rehabs do not have medical professionals on staff. Not only does our program work better and bring medicine to addiction care, it also costs just 10% of traditional programs. Nick founded Recover after seeing his family and friends struggle with addiction. He was raised by a drug addict, has an alcoholic brother, and lost an uncle to heroin. He saw how hard it is for people to get the treatment they need, and how ineffective existing options are. We are working to make sure that people like Nick’s family have access to best-in-class addiction treatment so they can get and stay well.

YC W21
Redcliffe Lifetech logo

Redcliffe Lifetech

Redcliffe Labs is India's Largest Omni-channel Diagnostics platform

Redcliffe Labs (a unit of Redcliffe Lifetech Inc) provides diagnostics with a comprehensive portfolio approach both with routine and specialised test menus with advanced testing labs all over India. Its digital first approach with on-demand 1-hour home collection and same day report is disrupting the way diagnostics is delivered today and thus is the fastest growing in India. Redcliffe Labs is providing 3500+ tests across its wide network of labs and collection centres. The company has served about millions of Indians and is processing more than 250K+ test parameters daily. The test portfolio is very wide including routine pathology tests, advanced genetic screening, research-based DNA tests in reproductive health, cancer and wellness/fitness. The easy to interpret smart reports provide key health check-points, which can help in diagnosing and treating both chronic and acute diseases on time. Redcliffe Labs has pioneered Drone technology adoption in the diagnostic sector by opening up the first commercial corridor from Uttarkashi to Dehradun. The company currently has 30+ labs and 700+ authorised collection centres in more than 120 cities across India. Redcliffe's vision is to provide world-class diagnostic services to people across the Indian sub-continent in an affordable manner.

YC S21
Reframe (Glucobit) logo

Reframe (Glucobit)

App to help people quit or cut back on alcohol use

Reframe is the leading app to help people cut back on drinking. Reframe uses neuroscience & psychology to help people shift the way they think about drinking & help build great habits. We don't believe in stigma or restrictions. In the past 12 months, Reframe has had over 2M+ users and has helped more people cut back on alcohol use than any other org worldwide.

YC W21
Rejoy Health logo

Rejoy Health

AI-powered healthcare information

Our AI-powered healthcare information platform leverages LLMs to deliver accurate, up-to-date medical knowledge

YC S18
Rejuvenation Technologies Inc. logo

Rejuvenation Technologies Inc.

We extend telomeres to extend the human health span

Delivery of TERT mRNA extends telomeres sufficiently in a few days to reverse over a decade of telomere shortening during normal aging. We are advancing TERT mRNA-based therapies to the clinic.

YC S22
Relay Health logo

Relay Health

The #1 App to Quit Porn: Rebuild Focus and Intimacy

Nearly 7 billion hours are spent on porn every year. Relay provides a modern solution to one of the most widespread yet hidden epidemics of our time: pornography. Despite being one of the biggest drains on focus, relationships, and mental health, it remains one of the most silent and stigmatized problems in society. We are tackling this head-on. Relay helps people break free through private, anonymous groups that provide accountability and community. Members join a small, confidential team that replaces isolation with connection, offering shame-free accountability, evidence-based tools, and daily reflection. Our mission goes beyond quitting porn. Relay exists to help people heal the isolation and pain that drive destructive habits—so they can rebuild intimacy, reclaim focus, and live with greater connection, purpose, and wholeness.

YC S22
Relevium Medical logo

Relevium Medical

Platform injectable gel based therapeutic for osteoarthritis

Relevium Medical is developing an injectable gel for knee osteoarthritis. Approximately half the population will be diagnosed with this pain and progressive disease. Right now, patients have to undergo not only repeat injections to control their pain, but also have to take strong oral medications. Because the disease is progressive and only gets worse over time, many patients end up on highly addictive, high-dose opioids. To date, we have secured $3.7 million in non dilutive funding and completed preclinical testing. We demonstrated that our drug is safe, selectively blocks nerves that transmit pain, and provides pain relief that lasts four times as long. Insurance currently pays $770 per six-monthly treatment for knee osteoarthritis. With 5 million patients in the US, this represents a $7.7 Bn market opportunity. This platform biotherapeutic can also be used to treat other joints affects by osteoarthritis such as the hip and ankle, where the same problems exist in treatment care.

YC W17
Reliance Health logo

Reliance Health

We make healthcare in emerging markets affordable and accessible

Reliance Health uses technology to make quality healthcare delightful, affordable and accessible in emerging markets. Through an integrated approach that includes affordable health insurance, telemedicine and a combination of partner and proprietary healthcare facilities, Reliance Health offers innovative healthcare solutions that meet the needs of emerging markets including Nigeria, Egypt and growing

YC W22
Remedial Health logo

Remedial Health

B2B E-commerce & Fintech platform for Pharmacies & Hospitals in Africa

Remedial Health sells medicine wholesale to the 1 million pharmacies and hospitals in Africa. Today in Africa, pharmacies shop in open-air medicine markets where they pay higher prices for counterfeits medicines. We offer a managed marketplace with all the stock they'll need, deliver within 24 hours and offer credit to help them grow.

YC F25
Remedy logo

Remedy

AI Agents for Pharmacies

Streamline prescription refills, reduce workload, and enhance patient care with intelligent automation.

YC S23
Remy logo

Remy

Making it simpler for medical clinics to work with insurance

Remy automates insurance-related tasks for practices, starting with phone calls to verify patient benefits and check on claims.

YC W21
Reshape Biotech logo

Reshape Biotech

Robots that automate the everyday tasks of microbiologists.

Reshape Biotech builds lab robots that automate the everyday tasks of microbiologists, from filling plates to analyzing images. Other companies try to sell “one lab robot that does everything”. But those robots become so complicated that they sit unused on the shelf. We build one robot for each function, which makes them easy to use.

YC W19
ResistanceBio logo

ResistanceBio

We solve drug resistance for cancer

YC F24
Reticular logo

Reticular

Interpretable AI for drug discovery

Reticular helps pharma companies discover drugs with AI models like AlphaFold by making them steerable, just like you can prompt LLMs. Today, limited validation data means companies spend millions on failed experiments trying to steer these models through trial and error. We’re piloting our AI interpretability technology with early-stage biotechs and scaling rapidly. Just a week after our pivot, we identified the first interpretable features ever found in protein models, allowing precise control over biological functions. Nithin and John met competing in Biology Olympiads before spending 4 years as roommates at MIT publishing ML/bio research in NeurIPS and Nature. We believe biological models encode far more information than anyone is currently using - our goal is to unlock this potential.

YC S17
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Rev Genomics

Rev is a biotechnology company creating better plants.

Rev Genomics is a plant biotechnology company that provides breeders, growers, and retailers with novel cultivars to differentiate themselves in high value markets.

YC W18
Reverie Labs logo

Reverie Labs

Engineering next-generation, brain-penetrant cancer therapies.

Reverie Labs is engineering next-generation, brain-penetrant cancer therapies.

YC W22
Reviving Mind logo

Reviving Mind

Addressing Loneliness and Isolation for Seniors

Navigating chronic illness is an isolating and lonely process which ultimately reduces medical adherence and adversely impacts outcomes. There are over 100 deadly chronic conditions as 1 out of 2 Americans is currently living with at least 1 chronic condition. The US healthcare system has over $1 trillion dollars in direct costs. Medical adherence rates for therapeutic programs and medicine are only 50% because patients feel lonely, isolated, and unsupported in their chronic illness journey. Reviving Mind is an in-network telehealth provider that improves clinical outcomes and program adherence for the senior medicare and medicare-advantage population that is plagued with loneliness and chronic illness. This is done through a novel and proprietary clinical program and technology platform that integrates virtual, private, curated, and professionally led groups that scale up to 8-patients with individualized and goal oriented lifestyle medicine coaching that is automated but managed by a licensed provider. Scaling rapidly across the United States.

YC S21
Revolve Surgical logo

Revolve Surgical

Surgical robotics for every operating room

Revolve is building the world’s only surgical robot designed for every operating room. Its simple yet powerful design makes it the only robot that can service the 1M+ abdominal surgeries performed outside of hospitals in the US every year.

YC S17
Ribbon Health logo

Ribbon Health

Health enterprise API for data on doctors, insurance, costs, & quality

Ribbon Health is a health care data platform that provides the critical infrastructure that health insurers, medical providers, and digital health solutions need to enable accurate provider directories, reliable referral management, and efficient care navigation. We offer a seamless API layer that integrates into each health care organization's existing workflow to build connectivity across the industry and continuously improve the accuracy of its data with its spread and use. Ribbon is the only solution to offer all of these capabilities in one platform, and delivers the most comprehensive data on doctors, insurance plans, and the cost and quality of care culled from thousands of sources. By providing this infrastructure, Ribbon delivers on its mission of making it easy for every health care decision to be high-quality, cost effective, and convenient.

YC S16
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RigPlenish

On average each Ambulance run is two hours long, 40 minutes is spent…

Our vision is to reduce the paperwork required after each Ambulance run and increase efficiency of the Ambulance operations and create a channel to securely communicate information to the hospitals in a timely manner.

YC S21
Rinse logo

Rinse

We're building the One Medical for dental

Rinse is building the One Medical for dental. Beautiful studios, easy to book same day appointments, and anxiety-free care focused on prevention, not the upsell.