Sift, which determines consumer trustworthiness, asks you to email privacy@sift.com. (An earlier version of this article contained a link to an online form; the company disabled the page after receiving thousands of submissions.)
Zeta Global, which identifies people with a lot of money to spend, lets you request your data via an online form.
Retail Equation, which helps companies such as Best Buy and Sephora decide whether to accept or reject a product return, will send you a report if you email returnactivityreport@theretailequation.com.
Riskified, which develops fraud scores, will tell you what data it has gathered on your possible crookedness if you contact privacy@riskified.com.
Kustomer, a database company that provides what it calls “unprecedented insight into a customer’s past experiences and current sentiment,” tells people to email privacy@kustomer.com.