I have written about the elements of exceptional startups. This post is slightly different. I want to share what I think is the most important trait of a successful startup. By trait I mean a cultural characteristic - a way of doing things. A company personality.

I believe the most important trait of exceptional startups is intensity.

Not intelligence, charisma, or positivity, although these three traits are required.

Why do I believe this?

The first reason I believe this is observation. I have been a part of 3 exceptional startups, and each of them had a culture of intensity, with the most intense being the most successful. I have also observed this across dozens of other startups - those who end up breaking out operate with a very high level of intensity.