Y CombinatorS20

Rarebird: Elevating mental health with a unique caffeine alternative in ethically sourced coffee.

Dr Hops Kombucha Beer: Crafting organic beer for a fusion of lively party and healthy living.

Blockchain-based platform for OEM parts procurement in aerospace, automotive, and medical sectors.

Founded in 1991, we specialize in developing and manufacturing ophthalmic medical instruments.

Zymochem, based in Emeryville, US, innovates eco-friendly, profitable chemical production from renewable sources.

CinderBio: Global provider of stable, natural enzymes from volcanic microbes for cleaning and sanitation.

Vantage Robotics: FAA-approved drone manufacturer for commercial use, trusted by CNN, law enforcement, and more.

Rainier Therapeutics: Advancing bladder cancer treatment through targeted therapy development.

D2C provider of affordable, superior bioplastic eyewear with a green ethos.

US-based Hj Science & Technology Inc offers expert management consulting services.

U.S. manufacturer, Energy Recovery, Inc., develops devices for energy recovery in water desalination.

SoundFit offers affordable, easy-to-use 3D scanning technology, enhancing manufacturing efficiency and quality.

ePAC Technologies, Inc.: Streamlining document management with digital printing and logistics solutions since 1998.

Triaxis Medical Devices: A leading healthcare supply company based in San Leandro, California.

Quino Energy: Cost-effective aqueous flow batteries, leveraging Harvard-licensed quinone technology.

C-Crete Technologies: A tech development firm specializing in commercial business and market research since 2010.

Owlized: Providing location-based VR solutions for immersive travel and urban planning experiences.

US-based Mercator MedSystems creates targeted delivery devices for vascular, oncologic, and regenerative treatments.

Zelos, a green battery builder, uses patented technology for safe, economical, and sustainable energy solutions, with a focus on environmental safety.

Tierra Biosciences, a synthetic biology firm, simplifies custom protein ordering and accelerates bio-based material discovery.

Leading tech company founded in 2011, based in San Leandro, California.

An entertainment hub for sharing personal gaming experiences and finding community.

Y CombinatorS18

Spero Foods: Plant-based dairy & eggs, sustainable and data-driven.

Y CombinatorS14

Self-cleaning blender for instant, healthy smoothies.