Sal Sferlazza graduated from SUNY Albany in 1996. He did IT consulting for his uncle while in school and then worked as a software consultant at Accenture.
In 2001 he and Chris Matarese founded Realm Interactive to build Exarch, a follow-up to the game Trade Wars. The studio hired comic artist Joe Madureira and was sold to NCSoft in 2004. The game was released as Dungeon Runners.
He then built companies in IT infrastructure. Lasso Logic, founded in 2005, was sold to SonicWall for about $20 million. PacketTrap was sold to Quest Software, and Anchor Networks to eFolder in 2013.
In 2013 he and Matarese started NinjaRMM in the San Francisco Bay Area. It moved to Austin and became NinjaOne in 2021. It raised $231 million at a $1.9 billion valuation in February 2024 and a round at $12.3 billion in 2026. Annual recurring revenue is above $600 million from more than 40,000 customers.