Michael Seibel

Clipboard Health is a healthcare staffing marketplace that connects independent healthcare professionals, including nurses, CNAs, medical assistants, and other allied health workers, with open shifts at healthcare facilities. The platform enables healthcare workers to choose when and where they work, while helping facilities fill critical staffing gaps. Part of Y Combinator's W17 batch, the company has grown to serve thousands of facilities across 30+ U.S. cities, reached $100M in annual revenue within three years, and has been profitable since 2022.

Scentbird is a direct-to-consumer fragrance subscription service that lets members try designer and niche perfumes and colognes for a monthly fee. Subscribers receive a 30-day supply (8ml vial) from a catalog of 600+ fragrances. Founded in 2014 and backed by Y Combinator (S15 batch), the company grew from 400 subscribers at its seed stage to over 500,000. Scentbird also operates sub-brands including Deck of Scarlet (makeup), Confessions of a Rebel (gender-inclusive fragrance), and Goodhabit (skincare).

Femtech wellness company that designs fashionable health-tracking wearables and a subscription wellness service for women. Products including Leaf, Ivy, and Time track cycle, sleep, activity, stress, and reproductive health. Participated in Y Combinator W14, voted most likely to succeed by its cohort.

Paystack is a Nigerian fintech company that provides modern payments infrastructure for Africa, enabling businesses to accept payments via credit card, debit card, money transfer, and mobile money through a simple API integration.