Amazon Ring now routes all of its inbound phone calls through Vapi, giving the US startup a live enterprise test and, according to reporting, a roughly $500 million post-money valuation after a $50 million Series B. Vapi says it now handles 100 percent of Ring’s inbound traffic and processes between 1 million and 5 million calls per day, with more than 1 billion calls handled overall. Reports name Peak XV Partners as the lead investor in the round and list participants including Microsoft’s M12, Kleiner Perkins, and Bessemer Venture Partners; Ring and Vapi spokespeople say the deployment improved customer satisfaction and let Ring tune agent behaviour without engineering intervention.

Vapi, a US startup that builds API-first conversational voice agents, has become a major back-end for Amazon Ring’s customer service calls. According to Vapi and Ring spokespeople, Ring began routing calls to Vapi in mid-Q4 of last year, and after a pilot over the holiday season the company moved to route all inbound phone traffic through Vapi’s systems.

That wholesale switch proved consequential. One report tied to the funding transaction says the deployment helped Vapi close a new $50 million round that pushed the startup’s post-money valuation to roughly $500 million. The same account listed Peak XV Partners as lead investor and named Microsoft’s M12, Kleiner Perkins, and Bessemer Venture Partners as participants. An investor source quoted by that reporting described Vapi’s annual recurring revenue run rate as a "healthy" eight figures.

What Vapi actually does for Ring

Vapi offers an API-first platform designed for building, deploying, and managing conversational agents for voice. The company positions the product for customer support, lead qualification, appointment scheduling, and outbound sales. Vapi says it also operates a self-serve developer platform used by more than 1 million developers, and lists enterprise customers including Amazon Ring, Kavak, Instawork, New York Life, UnityAI, Cherry, and Intuit.

Jason Mitura, vice president of software development at Amazon Ring, told reporters that customer satisfaction scores improved after the Vapi deployment and that Ring’s teams could tune the AI agent experience without depending on engineering. Ring’s move to route all inbound phone traffic through Vapi followed an evaluation of more than 40 AI voice vendors and a holiday-season pilot intended to handle high call volumes.

Vapi reports large usage volumes on its platform. The company says it has handled more than 1 billion calls in total and currently processes between 1 million and 5 million calls per day, with the bulk of traffic coming from enterprise customers. Those figures are presented by the company as evidence that a cloud voice stack can operate at enterprise scale.

Funding, growth and contradictory signals

The $50 million Series B account isn't the only fundraising story in circulation. Other coverage records an earlier $20 million round led by Bessemer Venture Partners and notes Y Combinator participation, tying that prior round to a roughly $130 million valuation. Separate business listings and a data profile show Vapi with about $8 million in revenue, or an $8 million ARR figure, around 2025, and at least one report said the company expected to hit $8 million in revenue by the end of that year.

Mastheads

Some of those numbers appear in a Reuters-sourced report and in other company profiles.

There are obvious contradictions in the public reporting. One strand describes the Series B and the roughly $500 million valuation, while other profiles and a Reuters-linked account describe the earlier $20 million raise, a $130 million valuation, and an $8 million revenue figure. The coverage therefore offers multiple pictures of Vapi’s size and timing, and each should be read with that context in mind.

Vapi’s founders are Jordan Dearsley and Nikhil Gupta. They originally built a voice-therapy product and then pivoted to voice infrastructure, and they say the company launched its platform publicly in 2024 after earlier developer traction. Reporting across outlets describes sharp enterprise demand for voice agents since early 2025, including at least one account that claimed tenfold enterprise growth in a short period.

Not everything in the coverage is fully corroborated. For example, one outlet ran a feature-style account that framed Vapi’s technology as enabling Ring doorbells to "converse naturally" and perform actions such as scheduling repairs or detecting emergencies. That particular narrative detail comes from a single source in the bundle and isn't reflected across the other reporting, so it should be treated as single-sourced colour rather than established fact.

Despite the mixed reporting on earlier funding and revenue, the operational markers are concrete. Ring has already migrated its inbound phone traffic to Vapi, and the startup points to the daily call volumes and the cumulative 1 billion-plus calls as clear evidence of live, large-scale use.

The presence of heavyweight names among reported investors will draw attention. Peak XV Partners is named in the account of the latest round, alongside Microsoft's M12, Kleiner Perkins, and Bessemer Venture Partners. Bessemer also appears in other reporting as the lead on an earlier $20 million round, and Y Combinator participation is recorded in some profiles.

For enterprise customers, the appeal is straightforward. Vapi says its API-first approach lets product and operations teams iterate on agent behaviour without requiring continual changes from engineering. That workflow change is the precise benefit Ring’s executives credited when discussing improvements in customer satisfaction.

Vapi’s customer list, as disclosed in reporting, spans fintech and insurance, gig-economy platforms, and developer tools. Named customers besides Ring include Kavak, Instawork, New York Life, UnityAI, Cherry, and Intuit.

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Operationally the clearest fact is this: Ring has migrated all inbound phone traffic to Vapi, which says it now handles 1-5 million calls a day and has processed more than 1 billion calls in total.

This article was created with AI assistance.