Harley founded Fathom Realty, 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 and ranked as the nation’s 20th largest brokerage based on $12.1 billion in 2021 sales.