Springer & Jacoby, Hamburg: "Passionate thinkers wanted"
"Got an MBA? Uncle McKinsey needs you!"
This ad reminds me the time I was working as a consultant at another American "big" consultancy company.
McKinsey & Company, as I recall, had a unique positioning and mistique in the market, as they use to "brag" about not needing to advertise their premium strategic services, because: "how can you advertise a solution to a problem that you don't know yet?". Interesting point, though!
PS: Well some companies don't need to communicate their services, because they rely on word-of-mouth and alumni networking, otherwise ...