Launched CertSimple with a 'Show HN' 862 days ago (https://news.ycombinator.com/item?id=9210908), for a significantly faster and easier way to do the identity checks required EV HTTPS certificates. We got our first customer on that day - I already knew them from previous dev work, but they saw the post on HN, hated their existing EV CA, and signed up.

https://certsimple.com now has clients including Superdry, CrowdCube, The Motley Fool and most of the fintech startups in London.