[zerr]

> * Is your company selling a software product (product company)

In the B2B world it is common to have a complex enough product that needs training services and tech support as well. Some vendors also add exams/certifications on top of it.

[mooreds]

That's fair, I was painting with a broad brush.

Once you get to a certain size of consulting company, you may also have an r&d department or someone responsible for building common libraries or knowledge repositories, for example.