Prior to ETA Equity, Mark was CEO of Staff One HR (acquired via Mark’s search fund) where he led the company through a period of substantial growth highlighted by achieving the Inc. 5000 list of fastest-growing companies for four years in a row, and culminating in Staff One HR’s sale to its largest privately-held competitor, Oasis Outsourcing, in December 2017. Mark oversaw the Western half of the country for Oasis Outsourcing until its sale to Paychex for $1.3 billion in December 2018. Prior to his leadership experience in the HR industry, Mark worked as a consultant and investment banker.