3 stage process, with a big mega final day where I had to talk with four people back to back. Mostly all behavioral questions, seeing how well I'd mesh with the team.

Overall a good experience. 1 screening call with HR, followed by a two case interviews (4 months later) and a Director interview (conversational and energy-related topics). While the interview process was smooth and the team lovely, HR was slow to respond. I had already accepted another offer, by the time the Guidehouse offer arrived.