The content team (teachers, video, audio, motion design) is a sizable portion of the company. They focus on writing, producing, and supporting the learning content and video.
The app team (devs + designers) focus on things like the the web app, the learning tools like our code challenges, and quite a bit of other stuff.
We have support team members who are always interacting with and helping our students. Marketing, sales, and operations are doing what you would expect them to.
It's interesting to watch the scaling in person. When I started it was just Nick Pettit and myself as teachers ( and we did our own video/audio work), Ryan the CEO, and we had a contract dev and designer. Now it's ~60, not even sure of the exact number, and everyone keeps really busy.