Legitimate marketing company for media outlets, e.g. your local TV and/or radio. They are selling advertising space on media websites, radio & TV. I hate that when they call, they always say "We are calling about featuring your business on __(insert name of radio/TV station)__." Makes it seem like they want to do a newstory on the business.
Callback # they left was 855-708-3852. Yes, indeed they were selling adspace.