Hi, here is my initial entry to your contest.  I thought I would try to give you something other than a factory building so you can have some options.  My design uses a funky factory machine at a conveyor belt, and the company name is positioned as if it's on the conveyor belt.  If you are at all interested in this concept, I am happy to keep working to fine-tune it for you.  Since you build online ads, it seems to me that it's important for your brand to stand out and be somewhat unconventional, as online advertising is a tough business.  It's important for your work product to stand out so website users take notice, and I think the same goes for your brand.  Thanks for your consideration, and if you're interested in talking further, let me know!  
Lindsey
(This comment references Entry #37)