The boom in start-ups and venture capital in the past few years has been sufficiently advertised. New players in the start-up ecosystem emerged as a result. Terms like angel investors, incubators etc. started doing the round. One such concept, seed accelerators, has also gained attention. Seed accelerators, also known as start-up accelerators, support early stage companies with high growth potential through education, mentorship and financing for a fixed period and as a cohort-based programme. The first and most prominent seed accelerator programme was launched by Silicon Valley based Y Combinator in 2005. Among hundreds of start-ups that got into their programmes, a few couldn’t make it, while others touched billions. Here we have listed some of the top Y Combinator start-ups that stand out.