EDC to the office for me is either a Victorinox Recruit or a Victorinox Cadet. I have many others ie (BM)Griptillian, Buck 110, (BM)Pika, Case Canoe... but the good old vic's are the one's who get used the most. Mainly because I'm not afraid to misplace them and they don't scare the sheep at work.
They may not be flashy, but they are true workers.