# Retell AI and boost.ai

> Conversational AI has split into two camps. boost.ai, founded in Norway in 2016 and now backed by Nordic Capital, built text-first virtual agents for Fortune 1000 customer service and became a Gartner Magic Quadrant Leader. Retell AI, a 2023 Y Combinator company, went the other way - voice-first agents that answer and place phone calls at roughly 600ms latency, reaching a reported $50M+ ARR on around $5M raised with a team of about 30. Together they map where automated customer conversation is heading: text that resolves and voice that talks back.

## Achievements

- boost.ai: named a Leader in the 2025 Gartner Magic Quadrant for Conversational AI Platforms.
- boost.ai: virtual agents maintain 90%+ resolution rates and are used by companies like Telenor, DNB and Silvercar by Audi; 500+ organizations globally.
- Retell AI: reported ~$50M+ ARR reached with a team of about 30 people, on roughly $5M raised.
- Retell AI: powers a reported 50M+ calls per month at industry-leading ~600ms latency.
- Retell AI: Y Combinator company named to Wing VC's Enterprise Tech 30 (2026).

## Latest updates

- **2026-04** — Retell AI reported at roughly $60M annualized revenue, up about 650% year over year (Sacra).
- **2025-01** — Retell AI reported climbing from ~$5M to ~$50M ARR over the year with a team of about 30.
- **2025-01** — boost.ai recognized as a Leader in the Gartner Magic Quadrant for Conversational AI Platforms.

## Links

- Website: https://boost.ai/
- LinkedIn: https://www.linkedin.com/company/boost-ai

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Profile page: https://yespress.io/retell-ai-boostai-rewiring-customer-call
Published by YesPress — https://yespress.io
Last updated: 2026-08-07