The Bellevue studio sells no tidy accelerator syllabus. It offers a pipeline, a workshop and flexible capital - the unglamorous machinery between a promising software idea and a company that can stand up on its own.
Attack Capital is a New York based, Y Combinator alumni founded AI venture studio and seed-stage fund. It builds vertical AI companies from scratch on a 30-day build cycle - spinning out products like OpenMic (AI phone agents), PowerDialer, and HealOS - while also giving accredited investors direct, diversified access to vetted YC startups. Founded by Thiel Fellow Kaushik Tiwari and Saumik Tiwari, it pairs a company factory with a fund.
Y Combinator is a startup accelerator founded in 2005 that invests $500,000 in early-stage companies in exchange for equity, then runs them through an intensive three-month program in San Francisco capped by a Demo Day pitch to investors. It has funded more than 5,000 companies - including Airbnb, Stripe, Coinbase, DoorDash, Dropbox, Reddit, Instacart and Twitch - whose combined value tops $600 billion, making YC the most influential template for how modern software startups get built and funded.
Shifamed is a Silicon Valley medical technology incubator founded in 2009 by serial entrepreneur Amr Salahieh. It combines human-centered design, in-house engineering, and R&D facilities to build medical device companies from concept to commercial launch, spinning out and incubating startups across cardiovascular, electrophysiology, and ophthalmology. Its portfolio and legacy companies have raised over $800M and produced multiple acquisitions by Boston Scientific, Abbott, Covidien, and Johnson & Johnson.