Can anyone recommend a company (website preferred) that installs good commercial grade cigar ventilation systems?

If you explain what you need I may be able to help or lead you in the right direction. I have some experience with ventilation systems in cigar bars. Most operate at increments set by the owner, but a custom system for a business is the only way to go

I have a retail location that I'm using right now only as an office. I have a couple of display humidors that I keep stocked. A few of us get together from time to time and smoke cigars at my conference table plus I smoke 3-4 sticks per day at my desk. I need something installed that will vent the room. My current method of leaving the door open and lighting a couple of smoke eater candles doesn't seem to work after several hours of puffing.

Have you thought of trying one of those csonka air purifiers?

It sounds as if the best cost effective appraoch is one of the csonka air purifiers. What size is the room in sq ft? Is there a window or drop ceiling? Also, what city do you live in?