D

Decagon

Application

AI agents for customer service and support automation.

Total funding$481M

Valuation$4.5B

Employees300

Founded2023

HeadquartersSan Francisco, USA

StatusPrivate

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Decagon AI agent

  Builds and runs customer-support agents that resolve enquiries over chat, email and voice.

• Experiments Application

  A/B-testing suite for AI support agents: structured experiments (tone, logic, flows) against live traffic with control groups, statistical-significance testing and gradual rollout.

• Insights & Reporting Application

  Dashboards and natural-language querying ('Ask AI') over support data: CSAT/deflection performance tracking, heatmaps, customer-journey visualization and knowledge-base performance.

• Suggestions Application

  Analyzes support conversations to detect gaps in a company's help center and auto-generates draft articles, ranked by impact, with monthly updates.

• Testing & QA Application

  Integrated testing suite (internally called 'Simulations') that validates AI-agent behavior across channels before production deployment.

• Watchtower Application

  Always-on monitoring and QA for AI and human agent interactions against custom quality criteria.

Inside Decagon

• Agent Operating Procedures Agent platform Included with the parent

  Decagon's authoring layer for the rules an AI support agent follows, so non-engineering teams can build, iterate on and scale agents.

• Decagon Chat AI agent Included with the parent

  Decagon's chat channel — an AI agent that handles live customer conversations in a web or in-app chat surface.

• Decagon Email AI agent Included with the parent

  Decagon's email channel — agents that read and answer customer email threads rather than routing them to a queue.

• Decagon Voice AI agent Included with the parent

  Decagon's voice channel — an AI agent that answers customer phone calls in place of a hold queue.

• Duet Agent platform Included with the parent

  An AI partner built into Decagon that helps teams build and improve support agents — distilling best practices from hundreds of Decagon deployments into guidance for the builder, and auto-tuning the agent via "Duet Autopilot," which improves it with every conversation it handles.

Closest alternatives 5

FForethoughtPrivate · $115M raisedForethought's own comparison page.4 of 7 capabilitiesShared product typeSourced competitorHandle customer support conversationsCompareCCrestaPrivate · $1.6BBoth sell AI agents that autonomously handle customer support conversations across chat/voice.6 of 7 capabilitiesShared product typeSame scale bandSourced competitorHandle customer support conversationsCompareFFinAcquired ($3.6B deal)Fin's own comparison page argues buyers should pick Fin over Decagon except for large enterprises wanting a vendor-led implementation.4 of 7 capabilitiesShared product typeSourced competitorHandle customer support conversationsCompareSSierraPrivate · $15.8BDecagon's own vs page.5 of 7 capabilitiesShared product typeLarger scaleSourced competitorHandle customer support conversationsCompareSSalesforcePublic · $196.1BSalesforce's official /compare/ page names Decagon as the rival point solution, positioned specifically for customer-support-style agent tasks. Agentforce and Decagon's flagship product both carry handle-support-conversations.4 of 7 capabilitiesShared product typeLarger scaleSourced competitorHandle customer support conversationsCompare

Similar products 91

How this list is ranked ↗

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larger scale (private).7 of 7 capabilitiesShared product typeLarger scaleCompareNNiCEPublic · $6.5BExperiments and NiCE Quality Management both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; similar scale (public).6 of 7 capabilitiesShared product typeCompareCCognigyAcquiredDecagon Voice and Cognigy Voice Gateway do comparable work on customer support and voice agent; both also serve buyers who need to handle customer support conversations; Cognigy is acquired, with no independent scale.5 of 7 capabilitiesShared product typeCompareAAdaPrivateDecagon Chat and Ada AI Agent do comparable work on customer support; both also serve buyers who need to handle customer support conversations; Ada's scale not recorded.1 of 7 capabilitiesShared product typeCompareGGenesysPrivateInsights & Reporting and Genesys Cloud Quality Assurance do comparable work on customer support; Genesys's scale not recorded.5 of 7 capabilitiesShared product typeCompareSASoundHound AIPublic · $3.1BDecagon and OASYS Front Desk do comparable work on customer support and voice agent; 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both also serve buyers who need to create synthetic voice and audio and handle customer support conversations; similar scale (private).2 of 7 capabilitiesShared product typeCompareXXiao-iPublicDecagon and Xiao-i cognitive intelligence platform do comparable work on customer support and voice agent; both also serve buyers who need to create synthetic voice and audio and handle customer support conversations; smaller scale (public).3 of 7 capabilitiesShared product typeCompareKKore.aiPrivateAgent Operating Procedures and Artemis do comparable work on customer support; Kore.ai's scale not recorded.2 of 7 capabilitiesShared product typeCompareZZoomPublic · $28.7BInsights & Reporting and Zoom Workforce Management do comparable work on customer support; larger scale (public).6 of 7 capabilitiesShared product typeLarger scaleCompareWWorkdayPublic · $49.3BDecagon Chat and Workday Paradox Candidate Experience do comparable work on customer support; both also serve buyers who need to handle customer support conversations; 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Krisp's scale not recorded.3 of 7 capabilitiesShared product typeCompareKKlaviyoPublic · $5.5BDecagon Chat and Klaviyo Customer Agent do comparable work on customer support; both also serve buyers who need to handle customer support conversations; similar scale (public).1 of 7 capabilitiesShared product typeComparePPegasystemsPublic · $6.1BDecagon Chat and Pega Customer Service do comparable work on customer support; both also serve buyers who need to handle customer support conversations; similar scale (public).3 of 7 capabilitiesShared product typeCompareAAtlassianPublic · $48.2BDecagon and Customer Service Management do comparable work on customer support and voice agent; both also serve buyers who need to create synthetic voice and audio and handle customer support conversations; larger scale (public).5 of 7 capabilitiesShared product typeLarger scaleCompareAHAssort HealthPrivate · $1.2BDecagon Voice and Assort Concierge do comparable work on customer support and voice agent; both also serve buyers who need to handle customer support conversations; 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larger scale (public).4 of 7 capabilitiesShared product typeLarger scaleCompareAAmazonPublic · $2.8TDecagon and Amazon Lex do comparable work on customer support and voice agent; both also serve buyers who need to create synthetic voice and audio and handle customer support conversations; larger scale (public).5 of 7 capabilitiesShared product typeLarger scaleCompareMmonday.comPublic · $3.9BOverlaps on agent orchestration and customer support; similar scale (public).2 of 7 capabilitiesShared product typeCompareHHubSpotPublic · $13BDecagon Chat and Knowledge Base Agent do comparable work on customer support; both also serve buyers who need to handle customer support conversations; larger scale (public).5 of 7 capabilitiesShared product typeLarger scaleCompareEElevenLabsPrivate · $11BDecagon and ElevenLabs Agents do comparable work on customer support and voice agent; both also serve buyers who need to create synthetic voice and audio and handle customer support conversations; larger scale (private).2 of 7 capabilitiesShared product typeLarger scaleCompareCCiscoPublic · $433.3BDecagon and Webex AI Agent do comparable work on customer support and voice agent; 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smaller scale (public).3 of 7 capabilitiesShared product typeSmaller scaleCompareRRespeecherPrivate · $4M raisedDecagon and Respeecher Text-to-Speech API do comparable work on voice agent; both also serve buyers who need to create synthetic voice and audio; similar scale (private).1 of 7 capabilitiesShared product typeCompareGGlean (Glean Technologies)Private · $7.2BOverlaps on agent orchestration and summarization; same layer and the same scale band (growth-stage private).2 of 7 capabilitiesShared product typeSame scale bandCompareAAlvariaPrivateDecagon Chat and Alvaria Intelligence Platform (AIP) do comparable work on customer support; Alvaria's scale not recorded; ships platform rather than the same layer.1 of 7 capabilitiesDifferent layerCompareDDXPrivateExperiments and AI Code Insights both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; DX's scale not recorded.4 of 7 capabilitiesShared product typeCompareUUniphorePrivate · $2.5BSuggestions and Real-time Guidance Agent do comparable work on customer support and summarization; 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larger scale (public).3 of 7 capabilitiesShared product typeLarger scaleCompareTTencentPublic · $510.1BAgent Operating Procedures and Tencent Cloud Agent Development Platform do comparable work on customer support; larger scale (public).3 of 7 capabilitiesShared product typeLarger scaleCompareHHarveyPrivate · $11BOverlaps on agent orchestration and evaluation and observability; larger scale (private).2 of 7 capabilitiesShared product typeLarger scaleCompareHAHume AIPrivateExperiments and Kairos Platform both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Hume AI's scale not recorded.3 of 7 capabilitiesShared product typeCompareOOpenAIPrivate · $852BSuggestions and ChatGPT for Word do comparable work on summarization; larger scale (private).4 of 7 capabilitiesShared product typeLarger scaleCompareZZscalerPublic · $30.5BOverlaps on evaluation and observability; larger scale (public).1 of 7 capabilitiesShared product typeLarger scaleCompareMAMistral AIPrivate · $13.8BSuggestions and Mistral Vibe do comparable work on summarization; larger scale (private).2 of 7 capabilitiesShared product typeLarger scaleCompareRAResemble AIPrivateDecagon and Security Awareness Training do comparable work on voice agent; both also serve buyers who need to create synthetic voice and audio; Resemble AI's scale not recorded.1 of 7 capabilitiesShared product typeCompareEElasticPublic · $10.2BExperiments and Elastic LLM Observability both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; larger scale (public).3 of 7 capabilitiesShared product typeLarger scaleCompareFAFiddler AIPrivate · $100M raisedExperiments and Fiddler Continuous Evaluations both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; similar scale (private).2 of 7 capabilitiesShared product typeCompareSSynthesiaPrivate · $4BDecagon and Synthesia both serve buyers who need to create synthetic voice and audio; same layer and the same scale band (growth-stage private).Shared product typeSame scale bandCompareCClayPrivate · $319M raisedOverlaps on agent orchestration and data analysis; similar scale (private).2 of 7 capabilitiesShared product typeCompareAAArthur AIPrivate · $62.7M raisedExperiments and Arthur both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; similar scale (private).2 of 7 capabilitiesShared product typeCompareDDeepSeekPrivate · $50BSuggestions and DeepSeek do comparable work on summarization; larger scale (private).2 of 7 capabilitiesShared product typeLarger scaleCompareSESamsung ElectronicsPublic · $1.2TDecagon and Bixby do comparable work on voice agent; both also serve buyers who need to create synthetic voice and audio; larger scale (public).1 of 7 capabilitiesShared product typeLarger scaleCompareLLangfuseAcquiredOverlaps on evaluation and observability; Langfuse is acquired, with no independent scale.1 of 7 capabilitiesShared product typeCompareSASnorkel AIPrivate · $1.3BOverlaps on agent orchestration; same layer and the same scale band (growth-stage private).1 of 7 capabilitiesShared product typeSame scale bandCompareCCopy.aiAcquired ($13.9M deal)Overlaps on agent orchestration and data analysis; Copy.ai is acquired, with no independent scale.2 of 7 capabilitiesShared product typeCompareLLightOnPublic · $29.6MSuggestions and LightOn Enterprise do comparable work on summarization; smaller scale (public).1 of 7 capabilitiesShared product typeSmaller scaleCompareRRobinhoodPublic · $108.6BOverlaps on agent orchestration; larger scale (public).1 of 7 capabilitiesShared product typeLarger scaleCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Press release · 28 Jan 2026

Decagon's own Series D announcement; independent coverage (SiliconANGLE, MobiHealthNews) states the $481M cumulative figure.

Valuation

Press release · 28 Jan 2026

"a fresh $250 million in funding, led by new investors Coatue Management and Index Ventures, tripling our valuation to $4.5 billion" — Decagon's own Series D announcement dated 2026-01-28. TechCrunch reported a tender offer at the same $4.5B on 2026-03-04.

Employees

News reporting · Apr 2026

Forbes company profile for Decagon, "Employees" stated as of April 2026. Read 2026-08-27.

Founded

Wikipedia · 11 Sep 2026

Infobox: "Founded August 2023; 3 years ago (2023-08)".

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