Vertical SaaS has really picked up in last 5 years with SaaS companies emerging and solving problems for particular industry ..for eg. Veeva for Life sciences or Zenoti for Spas and wellness. They provide all the products required by that particular industry.

My question is who is building this kind of vertical SaaS platform for SaaS industry itself. It would include products like Content management system, sales automation, CPQ and proposal management, support , integration platform built specifically for the SaaS companies.