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L2 Political


Maintains databases of voters and non-voting adults along with contact information, purchasing behavior, and demographic data. L2 sells this data and makes software for analyzing it.



Major data broker that collects data from a wide variety of sources. They sell data and match up the identities of people across data sources. Acxiom also offers consulting services to help organizations use their data. They created a website ( that explains how targeted advertising works and offers to let people control how their data is used, but also likely collects data in the process.

Cambridge Analytica


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.


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