TL;DR: Sacra estimates that Apollo.io has crossed $100M annual recurring revenue (ARR) growing 100% year-over-year by offering a self-serve vertically integrated data and sales GTM platform. As they go all-in-one, they're butting up against ZoomInfo (NASDAQ: ZI) with the upside potential to threaten HubSpot (NYSE: HUBS). Check out our Apollo.io report and dataset for more...