A startup accelerator is a program that supports early-stage startups by providing mentorship, resources, funding, and networking opportunities to help them grow quickly and succeed.
Synonyms: business accelerator, startup growth program, startup accelerator program, accelerator program

Startup accelerators play a crucial role in the startup ecosystem by helping new businesses overcome early challenges. They provide startups with expert guidance, access to investors, and a structured environment to refine their products and business models.
Typically, startups apply to join an accelerator program for a fixed period, often a few months. During this time, they receive mentorship, training, and sometimes seed funding in exchange for equity. The program culminates in a demo day where startups pitch to potential investors.
Well-known startup accelerators include Y Combinator, Techstars, and 500 Startups. These programs have helped launch many successful companies by providing critical early support.