We’re also old and grizzled. 
We make decent margins right now since we have our own hardware. The prices you see are almost all cost / 0.3, when servers are at optimal capacity we’re making 70% margins.
There’s more funding than you can find on the internet, but we’ve been unit-profitable most of our life. We use the investment money primarily to build awareness, get more customers, and give us a cushion while the bottoms up, self service revenue model gets to a reasonable scale (it took years last time we did this).