I've been wearing Body Glove Riptide shoes to work with no problems. I did use a black Sharpie to block out the bright yellow logo. They are amazingly flexible. The sole is very soft and may wear out relatively quickly but at $15 a pair (yes, $15) I think they're a pretty good deal.
The sole is pretty well insulated, too. I wore them for several days in the snow (between 20 and 32 degrees Fahrenheit). The flexible, grippy soles also did better on lumpy ice than my stiff, lug-soled shoes. (For comparison, the bottoms of my feet were too cold in VFF KSOs at 40 degrees Fahrenheit.)
I also have Vivo Barefoot Aquas. They are fine for work but the sole is too hard which, combined with the tight cuff, messes with my proprioceptive sense of where my feet are. Hard to explain - it's weird. It feels like I'm wearing loose slippers even though they're not loose at all.