The round was led by SignalFire with participation from Dick Costolo and Adam Bain's VC firm 01 Advisors. Square CPO Saumil Mehta; the founders of business management software Squire, Songe LaRon and Dave Salvant; former Yelp SVP of Engineering Michael Stoppelman; and former Snap Engineering VP Ding Zhou also participated.

Siro is transforming the trillion-dollar world of in-person sales by unlocking intelligence from a never-before-digitized dataset: in-person conversations.

Siro's mobile app records, transcribes, and analyzes conversations, turning them into searchable, revenue-driving data. Sales teams use Siro to coach with real examples, uncover hidden revenue, and scale winning strategies from top reps.