Ask HN: Do you have examples of larger companies using static site generators?

I'm currently looking into the viability of using a static site generator (GatsybyJS) to provide a PWA-type experience for a multi-locale CMS driven site.

The content will be maintained using a CMS, and the site will be regenerated and re-deployed on each publish. Any transactional requests will be serviced by a custom API-driven backend system.

Aside from performance and scalability advantages, I like the extra layer of security provided by removing dynamic-access to the CMS. I also like the level of control provided by combining code and content within each discrete build artifact.

In order to help make my case, it would be really useful to reference examples of larger companies that have successfully used this approach. Conversely, any stories about why this approach could fail would be equally useful.

Best

Luke