You could use "fast-growing" (note the hyphen), but I wouldn't use "quickly". I am trying to think of a reason, but I can't - maybe somebody else knows a rule of thumb for this one.

Adverb

* S: (adv) quickly, rapidly, speedily, chop-chop, apace (with rapid movements) "he works quickly"
* S: (adv) promptly, quickly, quick (with little or no delay) "the rescue squad arrived promptly"; "come here, quick!"
* S: (adv) cursorily, quickly (without taking pains) "he looked cursorily through the magazine"

http://wordnetweb.princeton.edu/perl/webwn?s=...


Ich hab Dir mal die Definition von "quickly" rausgesucht. Ich denke, das paßt deshalb nicht, weil es eine Bewegung bedingt (he moves quickly).

No rule of thumb, just a hunch, but the same as the kat's

One would generally not use "quickly" in a title like that. One could say that the company grows quickly, but I agree that in this situation the best usage would be "rapidly growing" or "fast-growing" company. "Quick" generally gives the idea of being sudden or immediate, and the action could be over as quickly as it began.

Thanks very much. You were more than helpful and now I can understand the difference between quick and fast. I have always had a bit of problem with it.

Have a nice day and a nice evening