Go to BrandMentions' Analytics an check out the Top Influencers chart.
Here you'll see a list with the influencers that mentioned you most.
Click on the mentions icon from the right and a pop-up similar to the one below will appear. You can export this set of mentions straight from this section.
Once you click on View more, you will get redirected to the Influencers area where you will see the whole list of influencers for all the social media profiles available.