Health Tech Startups funded by Y Combinator (YC) in New York 2025

The Mednet is a physician-only Q&A platform for expert answers to real world clinical questions. With medical knowledge evolving faster than ever before, theMednet addresses the gap between textbooks and real-patient experience. At theMednet, more than 1,500 expert physicians across numerous medical specialties help answer questions that go beyond textbooks and guidelines. Our platform documents undocumented medical knowledge, while making it accessible and easily searchable to all physicians. We know patients with access to experts have better outcomes. By providing physicians with relevant, up-to-date expert knowledge, their patients benefit from the best care possible.

Eight Sleep is the world's first sleep fitness brand with a mission to fuel human potential through optimal sleep. Founded in New York City in 2014, Eight Sleep leverages thermoregulation, data, and technology to design products to restore individuals to their peak energy every morning. Eight Sleep was named one of Fast Company's “Most Innovative Companies of 2018 and 2022”, and recognized by TIME's Best Inventions of 2018 and 2019.

Alzheimer’s is tough. And while there is no cure, getting help should be 100x easier than it is today. We’ve raised over $6 million to solve that problem. When someone is going through the disease, there are many different things they need help with (i.e. memory issues, depression, fall risk, safety in the home, etc). The primary person responsible for that care is one of the patient’s loved ones – usually a child or a spouse. That’s a really difficult thing for the loved one to do. It’s stressful, time consuming, and difficult. If we can make their lives easier, we can not only improve their experience but also create better patient outcomes. We’re building the world’s first one-stop-shop, d2c care platform for Alzheimer’s, starting by optimizing the care monitoring, management, and intervention processes.

H1 helps connect the healthcare ecosystem by providing a global platform of every healthcare professional and healthcare organization.

Nest is a lab-agnostic, comprehensive solution for organizations to launch and implement large-scale genomic programs. The platform includes the ability to triage, consent, and counsel patients for genetic testing, provide EMR-integrated clinical decision support for providers managing patients with genetic results, and manage patients’ clinical needs across the continuum of care.

BBy's condensing device turns milk into a fine powder that spares the biome leaving it biologically and immunologically active. This allows hospitals to stop wasting precious nursing time defrosting milk for hours and milk wastage from discarding rules. Simply weigh the powder, add water, shake and serve. No more freezing, no more defrosting, only patient care. NICUs are time sensitive wards in the hospital, time is everything and yet nurses today continue to prepare frozen milk for infants in what's known as the milk shift. A shift where the nurse spends the day defrosting milk for the next shift of nurses. Our tech is now fully peer reviewed and published, yielding safe and reliable results in over 20 hospitals in the New York Tri-State. The company is headed by Vansh Langer MD, a physician (Windsor University, University of Chicago) and Blanca Aguilar Uscanga PhD, a Bioengineering/Food Science PhD (University of Guadalajara /Centro Universitario de Ciencias Exactas e Ingenierías (CUCEI)) team that has over 50 published works in the field between them and are experts in the science of infant nutrition. Vansh saw the immense need for a time critical solution in the NICU and helped solve the puzzle with Dra. Blanca and her team and decided to work together to: Nurture the Future.

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.

Fairway Health is an AI-assistant for health insurers to quickly process patient treatment authorizations. We use LLMs to analyze long (70+ page), messy medical records and determine if a patient is eligible for a treatment.