Caller ID "HiTechBuilder". Called while I was out, left no message on answering machine.

Was on my other line when called by this number showing as HiTech Builders. Called back immediately, actually reached a lady who was quite nice. She stated they were a legitimate general contractor that had purchased a list of names from a broker that were SUPPOSED to be checked against the DNC list.  She informed me if I was receiving a lot of calls from contractors or home improvement companies, it was because this broker somehow obtained my name and was selling the list. She was happy to take my name off her list.

no one there when I answered, noise and conversations in background, hang up ID showed company name of HITECHBUILDER