Dayforce has signed an agreement to acquire Ribbon AI, a Toronto-based recruiting startup whose voice AI interviewer has completed more than one million candidate interviews. The HR software company announced the deal on Friday, October 23, and did not disclose the purchase price or when it expects the transaction to close.
Dayforce said Ribbon's technology will be built natively into its new Dayforce Agentic Recruiting experience once the deal closes, giving customers AI tools to source, screen, evaluate and engage candidates. Ribbon reports hundreds of customers, and Dayforce said the technology has been tested across as many as 30 million candidates within a single applicant tracking system.
Ribbon's core product is a conversational voice AI that runs two-way screening interviews around the clock. It generates interview questions and a scoring rubric from a job description, evaluates candidates from interview transcripts, and runs integrity checks that flag unusual audio, gaze and response-timing patterns.
Key facts
- 01Dayforce signed an agreement on October 23, 2026 to acquire Toronto-based Ribbon AI; the price was not disclosed.
- 02Ribbon's voice AI interviewer has completed more than one million interviews for hundreds of customers.
- 03Ribbon's technology will be built into the new Dayforce Agentic Recruiting experience after the deal closes.
- 04Ribbon was founded in 2022 and raised $8.2 million in early 2025 in a round led by Radical Ventures.
- 05Dayforce is owned by Thoma Bravo, which agreed to take it private in a $12.3 billion deal.
About 90% of Ribbon's customers use its recommended default configuration, according to Dayforce. Beyond interviews, Ribbon offers AI sourcing, talent rediscovery and candidate outreach by SMS, WhatsApp and email, and Dayforce said the startup is nearing completion of an AI scheduling agent.
Dayforce founder and CEO David Ossip framed the acquisition around high-volume hiring, saying Ribbon accelerates the company's vision for agentic recruiting. Dayforce said Ribbon's conversational voice and video AI will let customers run candidate interviews at scale and automate early-stage screening.
“High-volume hiring shouldn't mean choosing between speed and a strong candidate experience”— David Ossip, Founder and CEO of Dayforce
Ribbon was founded in 2022 by CEO Arsham Ghahramani and COO Dave Vu. The startup raised $8.2 million in early 2025 in a round led by Radical Ventures, and Fast Company named it one of its Most Innovative Companies in Enterprise for 2026.
Ghahramani, Ribbon's co-founder and CEO, said the company was built on a simple belief that every candidate deserves a genuine opportunity to be considered.
“Together, we can make hiring faster, more fair, and more personal.”— Arsham Ghahramani, Co-Founder and CEO of Ribbon
Dayforce is headquartered in Toronto and Minneapolis and is owned by private equity firm Thoma Bravo, which agreed to take the company private in a $12.3 billion deal.
Dayforce said the Ribbon deal is designed to shorten the interview process and reduce the cost of interviews for its customers, with Ribbon's tools arriving inside Dayforce Agentic Recruiting after closing.
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