“From lack of product-market fit to disharmony on the team, we break down the top 20 reasons for startup failure by analyzing 101 startup failure post-mortems.
Where is this data coming from?

After we compiled our list of startup failure post-mortems, one of the most frequent requests we got was to use these posts to figure out the main reasons startups failed.

Startups, corporations, investors, economic development folks, academics, and journalists all wanted some insight into the question:

What are the reasons startups fail?”

Continued on source.