AI voice agents platform for contact center automation
Retell AI (YC W24) is the leading platform for building and managing AI voice agents that automate contact center operations across inbound support, outbound sales, and back-office calling workflows. After a $4.6M seed round in August 2024, the company hit ~$60M annualized revenue by April 2026 (up 650% YoY) targeting a $350B global contact center market.
AI📍 San Francisco, CAFounded 2023
Current Valuation
Private
as of 2024-Q3
PRIVATE
IPO Outlookprivate
Is Retell AI going public?
No. Retell AI is private and has not filed to go public. There is no S-1 on file.
What is Retell AI's valuation in 2026?
No confirmed valuation is on record for Retell AI. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Retell AI filed an S-1?
No public S-1 is on file for Retell AI.
Who are Retell AI's investors?
Retell AI's investors include Alt Capital, Y Combinator.
How much has Retell AI raised?
Retell AI has raised $5.1M in total, most recently a Seed of $4.6M in Aug 2024.
Is Retell AI publicly traded — can you buy Retell AI stock?
No. Retell AI is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Retell AI on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Yi Ren Lu
Founded
2023
HQ
San Francisco, CA
Employees
~50
Total Raised
$5.1M
Est. Revenue
$60M (2026-Q2)
Growth
~650% YoY
Last Round
Seed — $4.6M (Aug 2024) · Lead: Alt Capital
IPO Status
private
Fundraising Status
Seed · $4.6M · 2y 2mo ago
privateTotal raised $5.1M
Latest Funding Round
Round
Amount
Date
Lead Investor
Post-Money
Seed
$4.6M
Aug 2024
Alt Capital
—
Vertical Intelligence — AI / ML
Open models
0
Downloads (30d)
0
across all models
Followers
7
Attributed to Hugging Face organization "Retell AI" as of 2026-10-05. Open-weights footprint only — closed-model usage is not publicly measurable. Verify on Hugging Face ↗
Talent Signal
Hiring trend
▲ Hiring uptrend
+10% vs 2026-08
Open roles
34
via ashby
Product-build share
59%
engineering, research, product, design
Trajectory
expanding
product-led hiring — 59% of open roles build product; the rest are go-to-market and G&A.
No tracked executive churn; open roles trending up.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Senior Product DesignerSenior Software Engineer, BackendSenior Software Engineer, Full StackSenior Forward Deployed EngineerSenior Software Engineer, FrontendStaff Engineer, Platform & Systems
Counted from Retell AI's live job board as of 2026-09-14; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Yi Ren LuYifei Xu
Investors
Alt Capital · Y Combinator
Products
Voice Agent Platform
Call Center AI
Inbound/Outbound Voice Agents
Telephony Integrations
Competitors
Bland AI · Vapi · PolyAI · Cresta · Cognigy
AIVoice AIConversational AIContact CenterYC W24
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2024-Q3. Refreshed quarterly.