Runs online opinion polls on a variety of issues internationally. They have pools of people that they ask survey questions, and also pull in data from social media and other sources to help brands understand their image. They are starting to get into the audience segmentation business too. YouGov is quite large and has acquired a number of related companies.

A Swedish political communications company. They run campaigns for a variety of organizations, mostly related to social and political issues. Reform Act mostly seems to work on digital campaigns.

Social media marketing company focused on progressive campaigns around the world.