Teamprise was the name of the company. (To be pedantic, it was not my company in that I was not a founder; I was an employee.)

I'm embarrassed to say that I'm not certain that I know the new name of the product. Microsoft product names can get a little, em, verbose when you start talking about small parts of bigger products that are also small parts of still bigger products. I think that the name, officially, is "Microsoft Visual Studio 2012 Team Foundation Server Team Explorer Everywhere".

While the acquisition was better for the product (more resources!) and better for customers of it (it's free!), the new name is regrettable.