Do not allow these people to come to your office.  It is a scam of epic proportions.  If you're a small business owner they are going to try and railroad you and take your money.  Don't give them any information, don't fall for the A Rating on the BBB.  Simply look up IPS, they all stem from the same tree.  Their business practice is dishonest, and they have people dedicated to posting on these sites how great they are.  If they call HANG UP