Is this a private or business number?

On two occasions I have recieved calls from this number, however I let it go to voice mail both times, the woman states she is the HR representative from Houlihan & Smith and wants to schedule an interview. After searching the web and this website I decided to not call her back because this company is reported to be like IPA in Buffalo Grove and you can draw your own conclusions.

http://www.houlihansmith.com/HSC_Locations.shtml
They are a lending company and have multiple locations.
I've received phone messages from them as well.

They called consistantly about 6 months ago.  They are *relentless*.  I finally had to get the president of the company to speak with them because they wouldn't stop calling until they spoke with him.  The president expressed disinterest, and the calls stopped.

6 months later, we are receiving the same relentless calls.  Every single day, sometimes twice a day, usually with someone hanging up on me when I say the president isn't available.  

Today, I called (312) 499-5900, a number I grabbed from their website, and asked to be taken from the sales contact database.  The woman I spoke with was polite and hopefully did as I asked.