I'd avoid 37signals. While they have bootstrapped, they haven't grown very fast, at all. 10M in 2 years is really fast, so they'd need someone who could deal with that kind of quick scale.
I think 37signals would say they've grown like they've wanted to while retaining complete control and building a company they want to keep working at. I don't think they've been after the most rapid growth possible, but sustainable growth that lets them call the shots.
That said, you totally have a point. Maybe they're not the best for consulting with for rapid, head over heals growth.
There is a case to be made here that social print studio should take investment at this point. They have product fit, and now they want a sold or dominant market position. It's a good moment for them and they could probably get pretty favorable terms. Further, they might not be able to achieve a sustainable market position without investment. That's probably the real question.
That said, you totally have a point. Maybe they're not the best for consulting with for rapid, head over heals growth.
There is a case to be made here that social print studio should take investment at this point. They have product fit, and now they want a sold or dominant market position. It's a good moment for them and they could probably get pretty favorable terms. Further, they might not be able to achieve a sustainable market position without investment. That's probably the real question.