Justin Hartfield is an entrepreneur and venture capitalist from Orange County, California.

Born to a Jewish family,[3] Hartfield founded WeedMaps in 2008 while working at a search engine optimization (SEO) consultation business.

[13][9][14] Hartfield founded the privately held Ghost Group in 2012 and serves as the company’s CEO.

[4][7][15] In addition to Hartfield’s work in the legal cannabis industry, he has also filled roles as a marketing and search engine optimization expert.

He contributed over $100,000 to the Measure F campaign, which advocates for an open market system for marijuana sales.