Grammarly uses it for many of their services.: https://www.grammarly.com/blog/engineering/running-lisp-in-production/ https://www.grammarly.com/blog/engineering

Grammarly uses it for many of their services.: https://www.grammarly.com/blog/engineering/running-lisp-in-production/ https://www.grammarly.com/blog/engineering/running-lisp-in-p... Pathway Tools is a genetic database search/comparison tool (I think, it's a bit over my head) and powers the https://biocyc.org/ https://biocyc.org/ website. Both are pretty typical use cases. Back-end services dealing with heavy symbolic manipulations. I think the most common use of Lisp is to implement Lisp though. ;)