I co-founded http://www.fitanalytics.com/ as the only technical guy, been working on that for the first four years (started with nodejs 0.4.x back then and CoffeeScript).

Now I have a small team in Berlin (5 devs), doing some mobile apps and a project for Wix: www.wixeducation.com (ES2015, Postgres)

We don't have a real website, because we're so busy :D but there's a logo online: www.code-pan.com