Retell AI — Funding & Company Data
Financial overview and investor data for Retell AI.
Founded
2023
Stage
Seed
Total Raised
$5.1M
HQ
San Carlos, CA
Team
11-50
Model
usage-based
Analyst Take
Retell AI's funding trajectory indicates strong early momentum and investor confidence. Graduating from Y Combinator provided initial capital and validation, quickly followed by a significant $4.6 million Seed round. This speed suggests the company hit critical milestones and demonstrated product-market fit rapidly. The investor syndicate is a healthy mix of institutional capital from Alt Capital and strategic angel investors, including the CEOs of Box and Runway and a YC group partner.
This composition signals both financial backing and access to a powerful network of enterprise software experts. For a company founded in 2023, securing this level of funding and reporting significant annualized revenue demonstrates exceptional capital efficiency and market traction. The capital provides a solid runway to scale its engineering team, enhance its core API product, and expand its go-to-market efforts. From a competitive standpoint, this funding allows Retell AI to aggressively pursue the enterprise call center market, a space where technological differentiation around latency and conversational quality is key.
Stability
The company appears highly stable. With a recent Seed round, backing from top-tier investors, and reports of profitability and $40M in annualized revenue as of late 2025, Retell AI has a strong financial foundation and is likely to be a going concern for the foreseeable future.
Growth
Retell AI is on a high-growth trajectory. The company went from founding in 2023 to securing a seed round and achieving significant revenue and customer adoption within two years, indicating rapid market penetration and scaling.
For Buyers
For a potential buyer, Retell AI's strong funding and rapid growth reduce the risk of the tool disappearing. However, its nature as a developer-first API means commitment requires available engineering resources to build, implement, and maintain the integration.
Funding Timeline
Investors: Alt Capital, Y Combinator, Carya Venture, Aaron Levie, Siqi Chen, Michael Seibel, Rajat Suri, Alex Levin, Tyler Bosmeny
Investors: Y Combinator