I hate to say this, but marketing surveys must be the new scam. I have recently started receiving multiple emails from different companies requesting that I take a survey. I usually only see them when I am scanning my junk mail folder for false positives. These are definitely scams.
Each email has the following similarities:
A few of them included links to LinkedIn profiles that no longer exist. It's the last one that tipped it over to the scam category - too many domain names resolving to the same IP address. My currently replies that I don't do surveys. I am going to change it up so that it just drops them in the bit bucket.