Y Combinator is a startup accelerator program that provides funding of $120k to a large number of startups twice a year. Startups move to Silicon Valley for 3 months to work with partners and alumni to build an MVP. On Demo Day, startups present to top investors. YC helps founders for the life of their company. Notable YC graduates include Airbnb, Dropbox, Twitch, and Reddit. Over the past 8 years, YC has funded over 700 startups valued at over $30 billion in total, including over 20 valued over $100 million and 3 over $1 billion.