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Retell AI

AI · Palo Alto, United States · Founded 2023

Conversational Voice API for Large Language Models MoreLess

Retell AI offers a platform for developers to build, test, deploy, and monitor AI-powered voice agents. The company provides a voice AI API and an agent builder, enabling the creation of custom voice agents for automating and optimizing communication processes. The platform is designed to handle complex workflows and scale to production-ready levels, targeting businesses looking to enhance their call operations and customer interactions through AI.

The business model appears to be usage-based, with pricing tiers for its AI phone agents. Retell AI serves clients who want to integrate AI voice capabilities into their services, as evidenced by its partnership with companies like Data Leaders and its integration with platforms like Cal.com. The company operates in the growing market of AI-driven communication and customer service automation.

Keywords: voice AI, API, agent builder, call automation, AI phone agents, customer interactions, communication platform, voice agents, AI-driven communication, developer tools

Valuation $0–100M
Revenue $10–50M
Headcount 100–500
Total funding $0–10M
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Retell AI and the history behind them.
Power Law Colt$25–100M revenue
Knowledge graph
Market map 1.5k+ AI Agents

Talent graph

Retell AI's talent

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Team profiled 16 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

4 investors on Retell AI's cap table

Sourced from Dealroom's funding history. Investor profile links are shown where available.

Seed 4 investors entered at this stage
Y Combinator
Alt Capital
Aaron Levie
Carya Venture Partners

Global footprint

Where Retell AI has talent and traffic

Workforce by country
10 countries with
team presence
🇺🇸 United States72.5%
🇨🇦 Canada8.7%
🇮🇳 India5.8%
🇵🇰 Pakistan4.3%
🇪🇸 Spain1.4%
Top 5 of 10 shown
Web traffic by country
760K monthly visits
across markets
🇺🇸 United States39.8%
🇮🇳 India11.1%
🇵🇰 Pakistan7.3%
🇬🇧 United Kingdom5.5%
🇨🇦 Canada3.4%
Top 5 markets shown

Market sentiment

What the market is saying about Retell AI

An AI-synthesized read of the highest-engagement posts about Retell AI on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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