Startup profile for Decagon: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.
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Decagon funding, valuation and investors

Enterprise AI agents automating customer support across chat, voice, and ops.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series D

$250M · January 2026

Latest known valuation

$4.5B

Series D · January 2026

Total disclosed equity funding

$481M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

growth · San Francisco, California

Investors in latest funding

Lead: Coatue , Index Ventures

Other: Andreessen Horowitz , Bain Capital Ventures

Sources: latest funding Last verified: 2026-08-03

Overview

Decagon deploys conversational AI agents across voice, chat, email, and SMS. It raised a $5M seed led by a16z, a $30M Series A led by Accel, a $65M Series B led by Bain Capital Ventures, a $131M Series C co-led by Accel and a16z at a $1.5B valuation, and a $250M Series D co-led by Coatue and Index at a $4.5B valuation.

Why Decagon is interesting

Decagon reported 100+ new enterprise customers in the fiscal year before a $250M Series D tripled its private valuation to $4.5B.

Product & use cases

AI agents handle end-to-end customer support conversations — resolving issues, processing refunds, and escalating edge cases across channels.

  • Automating tier-1 customer support across voice and chat
  • Handling high-volume transactional inquiries
  • Scaling support during product launches

Key facts

  • Series D (Jan 2026): $250M at $4.5B led by Coatue and Index
  • 100+ new enterprise customers in the fiscal year before Series D
  • Customers: Block, Chime, Avis Budget Group

Funding history (newest first)

Series D

2026-01 $250M Valuation: $4.5B

Source: https://decagon.ai/blog/series-d-announcement

Series C

2025-06 $131M Valuation: $1.5B

Source: https://decagon.ai/blog/series-c-announcement

Series B

2024-10 $65M

Source: https://decagon.ai/blog/series-b

Series A

2024-06 $30M
  • Accel (lead)

Source: https://decagon.ai/blog/series-a

Seed

2024-06 $5M

Source: https://decagon.ai/blog/series-a

Investors in our directory

Funds linked from Decagon's profile — open a fund page for stage focus and related deal articles.

Andreessen Horowitz Bain Capital Ventures Coatue Index Ventures

Competitive landscape

Edge: Agent Operating Procedures let CX teams define workflows in natural language while technical teams retain integration and guardrail control.

Decagon competes with AI-native vendors including Sierra and Forethought, plus incumbent platforms such as Zendesk and Intercom.

  • Sierra direct

    AI customer agent startup from Bret Taylor.

  • Forethought direct

    AI support automation.

  • Zendesk AI incumbent

    Support platform adding AI.

  • Intercom Fin incumbent

    Intercom's AI agent.

Notable stories

  • Founded in 2023, Decagon announced a $4.5B Series D valuation in January 2026; this is a private financing mark, not a public-market capitalization.

Industries

AI & Machine Learning Enterprise SaaS

Related funding articles

Venture Capital Tracker pieces that cover Decagon's financing or category context.

FAQs about Decagon

Practical answers founders, operators, and investors typically search for.

Enterprise AI agents automating customer support across voice, chat, email, and SMS.
Coatue and Index co-led Series D, Accel and a16z co-led Series C, Bain Capital Ventures led Series B, Accel led Series A, and a16z led the seed round.
Both sell enterprise AI customer agents. Compare verified resolution and escalation rates, deployment time, governance controls, channel coverage, and cost per resolved request.
January 2026 — $250M at $4.5B.
Block, Chime, Avis Budget Group among named customers.
Not publicly disclosed.
Decagon says its agents resolve routine and multi-step requests and hand selected cases to human agents; the automation share varies by deployment.
San Francisco.
No.
Decagon reported more than 100 new enterprise customers in the fiscal year preceding its January 2026 Series D.
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By Venture Capital Tracker

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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.