I have been working at Kurt Salmon full-time (More than 10 years)
Internal and Corporate staff were exceptional.
Sometimes it was a high pressure environment.
I applied through college or university. The process took 1+ week. I interviewed at Kurt Salmon (New York, NY).
Through campus recruiting. It was a case and behavioral (about 30 min each). Case interview was multi-stepped and had figures and graphs to work with. Overall, was a positive and fun experience, but unfortunately wasn't called back.