Acxiom, the Quiet Giant of Consumer Database Marketing

Few consumers may have heard of Acxiom, a database marketer. But it has amassed the world’s largest commercial data trove about them.

In a fast-changing digital economy, Acxiom is developing even more advanced techniques to mine and refine data and to predict consumer behavior.

Federal authorities say current laws may not be equipped to handle the rapid expansion of an industry whose players often collect and sell sensitive financial and health information yet are nearly invisible to the public.