http://www.netconcepts.com/portfolio/client-list.htm A local company, met the VP of eCommerce at a networking social a while back.
I would guess Bruce Clay has some, Mike Grehan's Market Smart has some. I think that a lot of Fortune 500 companies don't do SEO. They rely on their brand strength to deliver themselves traffic.
Where I live, 2 SEO companies have the top companies. The are not the best SEO company, and have been in the media several times, because client websites got banned. They still use cloacking methodes and adwords as main products. Still most huge companies do the SEO with them. Because of their name! You see them in evey SEO seminar or any seminar that has to do with internet marketing. I was wondering if this is a local thing or that the big players all play dirty..
I saw an ad in our local paper looking for someone who know about redirects, cloaking and other ways to manipulate SE's...interesting for a smaller sized town.
I was looking at a SEO Company out of North America (staying away from mentioning the name or state in public), with some great clients, and found that for one of the big clients, they were actually doing landing pages which would redirect once a user lands on that page. Isnt that cloaking, if I am right ?