Dayforce to acquire Ribbon AI to add conversational interviewing to its recruiting suite

Dayforce did not disclose the purchase price or the closing timeline. Ribbon was founded in 2022 by CEO Arsham Ghahramani and COO Dave Vu, and it raised $8.2 million in early 2025 led by Radical Ventures. Its AI interviewer runs conversational interviews, and Dayforce says the product has hundreds of customers and more than one million completed interviews. Dayforce plans to integrate Ribbon natively into its new agentic recruiting experience, connecting sourcing, screening, evaluation and candidate engagement. The deal follows Thoma Bravo's $12.3 billion take-private of Dayforce earlier this year, which put the HR software company under new ownership. For founders, the deal shows how workforce software vendors buy point tools for interviewing and sourcing rather than building them. An AI recruiting startup with a proven interview volume can attract strategic buyers even without a disclosed price.