Siro: $50 Million Series B Raised For AI-Based Conversation Intelligence Platform

By Amit Chowdhry • May 30, 2025

Siro, an AI-based conversation intelligence platform for in-person sales, announced it has raised $50 million in Series B funding led by SignalFire, with participation from 01 Advisors, StepStone Group, and existing investors CRV, Fika Ventures, and Index Ventures.

How Siro works: With Siro’s mobile app, reps record their in-person sales conversations. Then AI transcribes and analyzes the recordings, surfacing key insights, coaching opportunities, and revenue-driving behaviors. Sales teams utilizing Siro have seen 36% higher close rates, 30% lower rep turnover, and 10x faster coaching cycles.

Launched in 2020, Siro grew rapidly, with hundreds of customers across industries like home improvement, med spas, and wholesale distribution. And Siro CEO Jake Cronin, a former top Cutco rep and McKinsey alum, started Siro to make in-person sales a more accessible path to financial freedom.

Value proposition: As technology has advanced rapidly for remote work and digital sales, field sales teams have been left behind. And Siro changes that by turning real-world conversations into structured, searchable data, giving companies visibility into what’s actually happening at the kitchen table, on the job site, or in the showroom.

How the funding will be used: The funding will be used to accelerate product development and expand the team across engineering, sales, and customer success.

KEY QUOTES:

“As an AI and data company ourselves, we at SignalFire are very interested in companies building vertical specific data moats. Siro’s solution is helping digitize the ‘dark matter’ of offline conversations comprising field sales engagements, which has broad extensibility across verticals and depth in downstream actions that can be instrumented from this data – such as customer and product insights.”

Wayne Hu, Managing Director at SignalFire

“Sales changed the trajectory of my life. This raise helps us build the tools to help others do the same.”

Siro CEO Jake Cronin