ZG

Zillow Group, Inc.

A real estate marketplace company that runs one of the most visited home-listing sites, where people browse homes for sale and rent, check estimated property values, and connect with agents and lenders. Launched in 2006 by Rich Barton and Lloyd Frink, the Expedia founders, its made-up name blends "zillions" with "pillow" — a soft place to rest your head among countless listings. Its signature "Zestimate" home-value estimate has become a household term in American real estate.