First off, welcome to the forum. You'll like it here

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I'm in the same boat as you are actually. I actually EDC a paraframe, but I've been looking for something that is "business friendly", and a bit smaller and more formal looking.
Some of the best options I've found are these:
CRKT Drifter 2.88in blade, ~$20, the SS version is a bit thinner, although it is heavier.
CRKT Padoza. 2.625in blade, ~$15-20, nice and thin.
Spyderco Persistence. 2.75in blade ~$30.
Boker Trance. 2.75in blade ~$30
Kershaw Chill. 3.1in blade ~$15-20
Kershaw Skyline 3.1in blade ~$35
Kershaw Zing 3.1in blade ~$30
Those are some of the better finds that I have found that fit what you are looking for, but you might also consider the Buck Vantage Select Avid small and a few others. Hope that helps (sorry, I hope this isn't overwhelming, its just what I've been looking at tonight

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Good luck!