If you look at the list above you'll notice that there are plenty of well-funded companies as well as bootstrapped companies. Zendesk has raised $85M. On the other end of the spectrum, you have Tender and Lighthouse from ENTP, which are not funded at all.
Unlike consumer internet startups, I think there's only one criterion for whether or not a SaaS product will be around in 5 years: Does the product work well?
Most of these companies don't/can't rely on network effects to grow, so there's very little winner-takes-all action. That's why you'll see plenty of breathing room for big players and small players alike in any given category.
Disclaimer: I'm the founder of a bootstrapped, profitable company, so I'm probably biased toward bootstrappers.
Unlike consumer internet startups, I think there's only one criterion for whether or not a SaaS product will be around in 5 years: Does the product work well?
Most of these companies don't/can't rely on network effects to grow, so there's very little winner-takes-all action. That's why you'll see plenty of breathing room for big players and small players alike in any given category.
Disclaimer: I'm the founder of a bootstrapped, profitable company, so I'm probably biased toward bootstrappers.