Not a scam, but still pretty bad.
Contrary to the reviews here, Aspen Research isn't a scam company. They don't want your credit card number, bank account, or any money. They do, however, want your time. Aspen Research is a telephone survey company that takes on all sorts of clients, from soft drink companies to political interest groups (Which are often the worst, since they don't want to ask questions so much as they want to fill your head with slander about their opposition.)
I can't argue against the claim that their employees are rude or annoying. The place mostly relies on temp workers and former convicts/felons, whom they pay minimum wage, and training is a joke. I'm sure turnover rates are high too. Apparently they get results for their clients though.
Anyway, if you ever get a call from Aspen and you don't want to take their survey (and why would you?), don't yell at the surveyor or plead with them to stop calling you (that's another thing - they often call the same number numerous times.) Instead, simply and calmly state ""take me off the list."" They are required by law to do so.
I repeat - THE ONLY WAY TO STOP GETTING CALLS FROM ASPEN IS TO SAY ""TAKE ME OFF THE LIST."" Those magic words are the only way to get them to remove your number from their auto-dialer. Anything else - pleading, threats, etc. - will only result in you getting another call some other time. ""Take me off the list"" should get them to stop - if they don't comply with your request, demand to speak to the manager, and he'll do so for you. In most cases (if the employee knows what they're doing), ""Take me off the list"" should work, not only for Aspen Research, but any company that uses an auto-dialer, including telemarketers.
tl;dr Aspen is an annoying telephone survey company that will keep calling you unless you say ""take me off the list"" in a firm tone. Keep that in mind next time you get any soliciting call from a real person.