My whole problem with a traditional US type rack is the fact that the bike is still accessible to thieves. And those U racks that are used now are really good to dent and ding the frame. Now because I use leather saddles I'm with bikemore, I want covered protection for the bike from the elements. I still ride it in the rain but I don't like it sitting in the rain... In the end because of these problems I wouldn't take a C&V bike to a rack I would just get a beater. And at that point, any old pole will do.
There is another option and we have a few of these downtown here but they do take a lot of room and you are still depending on a lock that can easily be cut. It is a bike pod or bike locker. Something like this,
http://huntco.com/bikepod/
This is thoughtful advice even though you may not agree with it. These are the usual concerns with a C&V bike and there are no ways in which a traditional US rack deals with them.
Now if your talking a private company and the loading dock is out of the way and you have enough space on a wall you could always do a custom traditional wall rack job that probably wouldn't run to much from a welder. Just get a square ironed frame rack with 10 hooks spaced appropriately and have an arm or something come up enough from the middle to run a lock through it for the user to lock the frame and a wheel. Bolt that to the wall.
The locking mech, I'm thinking something like this:
It keeps them hanging and from bumping into each other. It clears out floor space but does take wall space. And is as safe as any other bike rack from thieves.