I have an icon of the Theotokos and an icon of my patron saint in my cubicle at my office. I often have bits of spare time when my computer is crunching away, and having the icons there reminds me that I can say a prayer instead of staring at the spinning beachball or off into space. Same goes for when I get frustrated with something. When the icons aren't there, I don't think of that.
The icons have made for some nice conversations with co-workers, all of whom are Protestants. But most have said nothing. They irk the president, but I don't care
A few people have gained an appreciation for icons because of it, and that's always nice.
Some places, such as government offices, might not allow religious items. But if your company does, I think it's a fine reminder that everything in life is spiritual, even menial office work.