#1 AI Voice Agent Platform for Automating Calls
Retell AI is using first principles to reimagine the call center with cutting-edge voice AI.
Thousands of companies now utilize Retell’s AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we have scaled to $60M ARR with a team of 40 people, up from $5M at the start of 2025.
Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we’re creating intelligent AI “workers” that can act as frontline agents, QA analysts, and managers, continuously executing, monitoring, and improving customer interactions.
We’re growing quickly and looking for ambitious builders who want to tackle hard technical problems, move fast, and have real impact at one of the fastest-growing voice AI startups.
Let’s build the future together.
Total raised
$4.6M
Last stage
Seed
Investors
Weijia Yu
Weijia excels in product and software development, with a specialization in machine learning. At Meta, he spent three years as a PM hybrid Tech Lead within Facebook product team. Prior to Meta, Weijia led app development at ObEN, a Series B AI tech startup, providing full-stack AI solutions including TTS(text-to-speech), computer vision and chatbot.
LinkedInZexia Zhang
Zexia is the co-founder and CTO of Retell AI. Passionate about ML, Zexia is always at the frontier of advancing speech technologies. Before Retell, Zexia spent four years at Google where he led the development of next-gen speech translation experience, and NLP solutions for call analysis.
Zexia Zhang
Zexia is the co-founder and CTO of Retell AI. Passionate about ML, Zexia is always at the frontier of advancing speech technologies. Before Retell, Zexia spent four years at Google where he led the development of next-gen speech translation experience, and NLP solutions for call analysis.
LinkedInBing Wu
Co-founder & CEO at Retell AI. Enthusiastic about the human brain and AI, Bing spent three years as a product manager at ByteDance/TikTok, where he led B2B and consumer products that delighted billions. Before joining ByteDance/TikTok, Bing founded two investor-backed startups in college, generating six-figure revenues.
LinkedInEvie Wang
Evie is the Co-founder and CMO of Retell AI She has a design background and a deep understanding of B2B business as she spent 3 years as a Product Designer at Bytedance.
LinkedInNo applications, no recruiter spam. Just the intro.
A few questions to make sure this role is the right shape for you. Two minutes.
I write the intro, send it to the founder, and handle the back-and-forth.
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.