This position was within the OR1 division of Karl Storz, which appears to be potentially run differently than other divisions within the company. I was told multiple times this division was special and run more like "a startup".
The initial interview (via the phone) was between myself and the HR manager. It was very general and the HR manager (I later found out) didn't completely understand the position.
Due to schedules, the second interview (in person) was arranged during an industry conference that both the hiring director and I were attending. The interview was conducted at a hotel bar for expediency and was between the hiring director and a manager the position would be interfacing with frequently. The interview was casual and the questions were meant to discover my skills, experience, interest and work-styles.
The third (via the phone) interview was with a group of engineering managers located in a city several hours from me. The interview was detailed and technical in nature. The group was quite professional, asking a number of solid questions.
The fourth interview (via the phone) was with an implementation manager. The call was quick and I got the sense that the employee was not exactly certain what role I was interviewing for.
The fifth interview (in person, at the main office) was with another director that I would be interacting with regularly. The interviewer was sharp and asked good initial and follow-up questions. The interviewer was extremely cordial and pleasant to speak with.
Overall, there did not appear to be a rigid process in place for interviewing, nor was there any sort of pre-existing order to the interviews. The interviewer's preparedness varied widely and there was clearly no internal process for interviewing potential hires.
That said, everyone I spoke with had been with company over five years (many were there longer than two times that amount -- a testament to the corporation's stability) and all spoke very positively about the company and work environment. I got the sense that everyone felt more like family than colleagues. I was told multiple times that a privately held, family owned and family managed company, implied a different, more stable and harmonious work environment.