Harley founded Fathom Realty (Nasdaq: FTHM), a subsidiary of Fathom Holdings, in 2009 and has grown it into a public brokerage company with a valuation of nearly $400 million. Fathom Realty, which operates an agent flat-fee business model, has a presence in 34 states. It ranks as the nation’s 24th largest brokerage with over 5,000 agents who do more than $6.7 billion in annual sales.