Decagon
AI customer-service agents for consumer brands; head-to-head with Sierra in the agentic-CX category
SectorsAI Software
Market Metrics
Valuation (Jan 2026 Series D)
$4.5B
tripled from $1.5B (Jun 2025) in under six months
Annualized Revenue (early 2026)
~$35M
100+ enterprise customers signed in 2025
Time Founded to Unicorn
~21 months
Apr 2023 founding to Jan 2025 Series B at $850M; among fastest in modern AI
Customer Base
100+ enterprise brands
Notion, Eventbrite, Bilt, Duolingo, Rippling, Square, ClassPass, Substack as references
Updated at 2026-Q1
Funding History
Total raised: ~$481M · Latest valuation: $4.5B
| Round | Date | Amount | Valuation | Key Investors |
|---|---|---|---|---|
| Seed | 2023 | Undisclosed | - | A.CapitalAndreessen Horowitz |
| Series A | Sep 2024 | $35M | $250M | Andreessen Horowitz (lead)A.CapitalA* Capital |
| Series B | Jan 2025 | $65M | $850M | Bain Capital Ventures (lead)Andreessen HorowitzAccel |
| Series C | Jun 2025 | $131M | $1.5B | Andreessen Horowitz (lead)Bain Capital VenturesAccelSlack Fund |
| Series D | Jan 2026 | $250M | $4.5B | Coatue (co-lead)Index Ventures (co-lead)ChemistryVCDefinition Capital+6 more |
| Tender Offer | Mar 2026 | First tender | $4.5B | Employee + investor liquidity at the Series D valuation |
Updated at 2026-Q1
Product Specifications
| Product | Type | Status |
|---|---|---|
| Decagon AI Agent | AI customer-service agent (chat + email + voice) | GA |
| Agent Lab | Visual agent design + workflow builder | GA (Mar 2025) |
| Workflows | Multi-step automated CX workflows with audit + replay | GA |
| Decagon Voice | Phone-channel voice agents (sub-second latency) | GA |
| Agent Outcomes | Outcome-based pricing tied to resolution / CSAT / containment | GA |
Updated at 2026-Q1
Partnerships & Investors
Andreessen HorowitzLead Investor (early rounds)
Seed, Series A, Series C lead investor; continued participation through Series D.
Coatue + Index VenturesLead Investors (Series D)
Co-led the Jan 2026 Series D at a $4.5B valuation.
Notion / Substack / Eventbrite / Bilt RewardsAnchor Customers
First production-scale deployments in 2024; consumer-brand reference customers.
Duolingo / Rippling / Square / ClassPassAnchor Customers
Expanded customer roster across consumer-app, payroll, payments, and fitness verticals.
Slack FundStrategic Investor
Series C investor; Slack distribution + integration synergies.
OpenAI / AnthropicModel Suppliers
Model-agnostic; routes per task between OpenAI and Anthropic frontier models.
Updated at 2026-Q1
Key Milestones
Apr 2023
Company Founded
Jesse Zhang (ex-Lawyaw, Y Combinator) and Ashwin Sreenivas (ex-Helia) launch Decagon
2024
First Production Deployments
Bilt Rewards, Eventbrite, Notion, Substack go live with Decagon's AI customer-service agents
Sep 2024
Series A at $250M
Andreessen Horowitz leads $35M; first priced round
Jan 2025
Unicorn (Series B at $850M)
Bain Capital Ventures leads $65M; 14 months from founding to near-unicorn
Mar 2025
Agent Lab + Workflows GA
Visual agent design + multi-step workflow product released; targets enterprise CX teams
Jun 2025
Series C at $1.5B
$131M raise; customer roster expands to 50+ enterprises including Duolingo, Rippling, Square, ClassPass
Jan 2026
Series D at $4.5B
$250M co-led by Coatue and Index; triples the valuation in under six months after signing 100+ enterprise customers in 2025
Mar 2026
First Tender Offer
Completes its first employee + investor tender at the $4.5B valuation
Updated at 2026-Q1