Is YC right for my startup?

Y Combinator funds a diverse range of startups, including those with existing revenue and those at the idea stage, supporting over 400 bio startups like MessageBird. Despite fear of rejection, YC encourages startups to apply, admitting to making mistakes and often funding previously rejected companies. Rejection is viewed as a common part of a successful startup journey, with YC only funding startups they believe they can help.