[CatsoCatsoCatso]

    What type of companies should use “Swan” as a logo mark?

Well before I even clicked the link my mind jumped straight away to House of Swan matches and their tobacco related products (papers, filters). In the UK (at least among smokers) they have a very strong brand recognition, so using the Swan here may not be the best idea.

[Duskic]

Interesting... Since I am not from the UK, and not a smoker, I had no idea. I often think of Swarovski and luxury.