San Francisco-based communications startup OpenPhone has rebranded to Quo and secured $105 million in growth financing to accelerate its mission of helping businesses “never lose a customer again.”
The round was led by General Catalyst’s Customer Value Fund, with participation from Craft Ventures, Slow Ventures, Garage Capital, and Y Combinator. The capital injection will fund product development, go-to-market expansion, and upgrades to its AI voice agent, Sona.
Why the Rebrand Matters
Co-founders Mahyar Raissi and Daryna Kulya launched OpenPhone in 2018 with a simple premise: modernise the business phone system. But as the company grew, it became clear that the name no longer captured the full scope of its ambitions.
“With Quo as our name, we can finally tell the full story. Think of Quo as your business’s customer hub, with phone at the centre,” Kulya explained.
This rebrand positions Quo as more than a business calling tool, it is now a customer-relationship operating system.
Product Evolution: AI-First Customer Support
Quo’s most significant upgrade is to Sona, its AI voice agent. The new tiered, usage-based model makes Sona available to all plans, with ten free calls per month. Sona can now handle complex scenarios, be trained on custom jobs, and transfer calls to human agents when necessary.
This positions Quo to compete directly with players like Aircall and Dialpad while doubling down on AI-powered customer engagement.
Funding Context: A Late-Stage Signal
The $105M round is one of the larger late-stage SaaS deals of 2025, signalling that investor appetite remains strong for companies with sticky revenue and clear product-market fit. For African SaaS founders, this is a reminder that category definition and AI adoption are two of the strongest levers for attracting growth capital globally.
Lessons for African Founders
- Brand Beyond the Product: OpenPhone’s shift to Quo shows the importance of choosing a brand that can scale with your vision.
- AI as a Differentiator: Embedding AI into core workflows can unlock new revenue models and stickier customer relationships.
- Global Capital is Watching: Late-stage investors are still writing large cheques for companies that own a critical piece of the business workflow stack.
Editor’s Note
Quo’s next challenge will be expanding its customer base globally while maintaining the product simplicity that made OpenPhone a YC success story. If it succeeds, it could redefine how SMBs worldwide, including those in Africa, build customer loyalty through voice and AI.
