They do, and ClojureScript (they're responsible for the largest open-source React/Om ClojureScript app, https://github.com/circleci/frontend https://github.com/

They do, and ClojureScript (they're responsible for the largest open-source React/Om ClojureScript app, https://github.com/circleci/frontend https://github.com/circleci/frontend). Because of the tech they built to auto-configure projects (and because of circle.yml), they also have statistics on tech usage across companies.