YC has been around since 2005. It has pioneered a model of its own where it hosts start-ups for a three-month accelerator-style program, twice a year. The program comprises mentor sessions, company building exercises, and networking with YC alumni and investors network, which seen as one of the best in California. YC also invests in start-ups- $150,000 for a 7 per cent stake.
Some of top start-ups like Airbnb, Dropbox and even quirky ones like 9GAG have come out of YC. The start-up school has also grown over the years to accommodate more applicants every year.