Working alongside engineer Steve Midgley, the two built LoopNet into the internet's largest commercial real estate listing service.

As early as October 1996 virtually all of its commercial property listings were being entered by its users directly.

[9] In April 2012, CoStar Group acquired LoopNet for approximately $860 million in cash and stock.

[11] In 2020, to address rapid changes occurring in the COVID-19 commercial real estate market, the company added significant virtual tour capabilities.

CoStar unsuccessfully argued that LoopNet was an active party to the violations and thereby guilty of copyright infringement.