Analyzes perceptions of brands on social media and attempts to predict future behavior from data. They also run social media campaigns for customers.

German data-based political marketing company started in 2016. There isn't great detail about their methods online, but it sounds like they use fairly standard techniques for audience segmentation and targeting, and also offer support with communication and advertising strategy.

A Mexican political marketing company that was created in 2016. They seem to be a full-service company with a focus on social media.

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

Parent company of Cambridge Analytica. Used data-driven political marketing techniques to influence elections around the world. Also worked extensively in influence operations for the defense and intelligence industries.

A data-driven political marketing company that worked on many different campaigns around the world. Cambridge Analytica uses data from a variety of sources combined with psychological profiles and surveys to target advertisements. It has been at the center of recent scandals due to the misuse of Facebook data when working on the Trump campaign.<br />An undercover investigation revealed that in some cases they may conceal their involvement in elections with front companies/partner companies or use more dubious tactics such as bribery and honey traps. Cambridge Analytica was also working on a cryptocurrency to enable people to sell their data to advertisers.<br />Due to a series of scandals, Cambridge Analytica and many of its associated companies were closed. However, Cambridge Analytica is far from unique and many other companies use similar techniques and data.