Accelerators
Produce far more failures than successes. I've been part of 5 startups, none that participated in accelerators, but 3 were VC funded, one a boot strap and one a still birth. One VC funded went through IPO, one VC funded & the boot strap were sold to mature companies, one VC funded crashed after burning through almost $200M, and one never made it very far as we failed to raise enough cash. I'd probably tell someone starting anew to look at accelerators with a jaundiced eye and be careful what you sign. The people running them are not doing so because they are altruistic.