SA

Siena AI

Siena AI sells AI customer service agents and customer experience software for consumer brands. Its software integrates with help desks and commerce systems to automate customer conversations and post-purchase actions.

StageEarly-stage

Founded—

HeadquartersWilmington, USA

StatusPrivate

Product

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

• Customer Service Agent AI agent Sold on its own

  Customer Service Agent automates customer support conversations and commerce actions such as returns, refunds, and replacements.

Similar products 106

No sourced competitor yet: no filing, vendor document or measured-market report read so far names a rival for this company, so none is asserted. The companies below are the closest by what their products do.

How this list is ranked ↗

AAideUndisclosedCustomer Service Agent and Aide AI Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareAAAlhena AIEarly-stageCustomer Service Agent and AI Support Concierge both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareCACoSupport AIUndisclosedCustomer Service Agent and CoSupport AI Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareNNeopleUndisclosedCustomer Service Agent and Neople both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeComparePPylonEarly-stageCustomer Service Agent and Support Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareYAYuma AIEarly-stageCustomer Service Agent and Support AI both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareCCallSphereUndisclosedCustomer Service Agent and AI Voice & Chat Agents both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareGLGradient LabsEarly-stageCustomer Service Agent and Lending agent both list customer support; same layer and the same scale band (early-stage private).2 of 2 capabilitiesShared product typeSame scale bandCompareLLorikeetEarly-stageCustomer Service Agent and Concierge both list customer support; same layer and the same scale band (early-stage private).2 of 2 capabilitiesShared product typeSame scale bandCompareMAMaven AGIEarly-stageCustomer Service Agent and AI Agents both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareTTwigUndisclosedCustomer Service Agent and Sera both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareTThenaUndisclosedCustomer Service Agent and Thena AI agents both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareQQueryPalUndisclosedCustomer Service Agent and QueryPal Concierge both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareEAeesel AIUndisclosedCustomer Service Agent and AI customer service agent both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareBBernardUndisclosedCustomer Service Agent and Bernard both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareRRinglyUndisclosedCustomer Service Agent and Seth both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareUUnthreadUndisclosedCustomer Service Agent and Agentic AI both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareEEchoCallUndisclosedCustomer Service Agent and AI Voice Agent both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareRRegalEarly-stageCustomer Service Agent and Phone AI Agents both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareAHAssort HealthLate-stageCustomer Service Agent and Assort Concierge both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareAAdaUndisclosedCustomer Service Agent and Ada AI Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareDDaptaEarly-stageCustomer Service Agent and AI Voice Agent both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareFForethoughtAcquiredCustomer Service Agent and Forethought Triage both list customer support; Siena AI's scale not recorded; Forethought is acquired, with no independent scale.2 of 2 capabilitiesShared product typeComparePParahelpEarly-stageCustomer Service Agent and Support Agent both list customer support; same layer and the same scale band (early-stage private).1 of 2 capabilitiesShared product typeSame scale bandCompareKKlaviyoPublicCustomer Service Agent and Klaviyo Customer Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareFFiniEarly-stageCustomer Service Agent and Fini AI agent both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareRRevionUndisclosedCustomer Service Agent and Revion AI voice agents both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareLLimeChatEarly-stageCustomer Service Agent and Level 3 AI both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareFfonio.aiUndisclosedCustomer Service Agent and AI Phone Assistant both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareAAskHandleUndisclosedCustomer Service Agent and AskHandle both list customer support; scale not recorded for either; ships agent platform rather than the same layer.2 of 2 capabilitiesDifferent layerComparePPalisadeUndisclosedCustomer Service Agent and Palisade both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareKKapaUndisclosedCustomer Service Agent and Kapa Website Agent both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareGGenesysUndisclosedCustomer Service Agent and Genesys Cloud Agentic Virtual Agent both list customer support; Siena AI's scale not recorded; Genesys's scale not comparable: only a revenue estimate, no market cap or valuation.2 of 2 capabilitiesShared product typeCompareCClearFeedEarly-stageCustomer Service Agent and ClearFeed AI Agents both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareHHerodeskUndisclosedCustomer Service Agent and Herodesk AI agents both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareDDecagonLate-stageCustomer Service Agent and Decagon Chat both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareFFreshworksPublicCustomer Service Agent and Freddy AI both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareYYellow.aiUndisclosedCustomer Service Agent and Conversational EX Cloud both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareHAHippocratic AILate-stageCustomer Service Agent and AI Physician Front Door both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareSSalesforcePublicCustomer Service Agent and Paige, the IT & HR Employee Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareZZmodeUndisclosedCustomer Service Agent and ZMODE both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareCConversicaUndisclosedCustomer Service Agent and Conversica AI Agents both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareEEntrataUndisclosedCustomer Service Agent and Entrata Maintenance AI both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareAAlvariaUndisclosedCustomer Service Agent and Alvaria Intelligence Platform (AIP) both list customer support; scale not recorded for either; ships platform rather than the same layer.2 of 2 capabilitiesDifferent layerComparePPhonelyEarly-stageCustomer Service Agent and Phonely both list customer support; ships agent platform rather than the same layer.2 of 2 capabilitiesDifferent layerSame scale bandCompareHHaptikAcquiredCustomer Service Agent and Smart Agent Chat both list customer support; Siena AI's scale not recorded; Haptik is acquired, with no independent scale.2 of 2 capabilitiesShared product typeCompareIInkeepEarly-stageCustomer Service Agent and AI Workflows both list customer support; ships application rather than the same layer.2 of 2 capabilitiesDifferent layerSame scale bandCompareCChatbaseUndisclosedCustomer Service Agent and Chatbase both list customer support; scale not recorded for either; ships agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCCrestaLate-stageCustomer Service Agent and Cresta Guidance Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareZZendeskLate-stageCustomer Service Agent and Employee Service AI Agents both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareFFinAcquiredCustomer Service Agent and Fin AI Agent both list customer support; Siena AI's scale not recorded; Fin is acquired, with no independent scale.2 of 2 capabilitiesShared product typeCompareAAtlassianPublicCustomer Service Agent and Service Request Helper both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareBBraviUndisclosedCustomer Service Agent and Bravi both list customer support; scale not recorded for either; ships application rather than the same layer.2 of 2 capabilitiesDifferent layerCompareEEliseAILate-stageCustomer Service Agent and Prospect Management both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareCCognigyAcquiredCustomer Service Agent and Cognigy xApps both list customer support; Siena AI's scale not recorded; Cognigy is acquired, with no independent scale; ships agent platform, application and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerComparePPolyAIUndisclosedCustomer Service Agent and PolyAI dialog agents both list customer support; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareEeGainPublicCustomer Service Agent and eGain AI Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareSASimple AIEarly-stageCustomer Service Agent and Simple AI both list customer support; ships agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerSame scale bandCompareSASoundHound AIPublicCustomer Service Agent and OASYS Front Desk both list customer support; Siena AI's scale not recorded.1 of 2 capabilitiesShared product typeCompareCCrescendoEarly-stageCustomer Service Agent and Crescendo Concierge both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareNNiCEPublicCustomer Service Agent and Enlighten Autopilot both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareTtelliEarly-stageCustomer Service Agent and telli both list customer support; ships agent platform rather than the same layer.2 of 2 capabilitiesDifferent layerSame scale bandCompareWWorkdayPublicCustomer Service Agent and Sana Concierge both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeComparePPhonicUndisclosedCustomer Service Agent and Phonic both list customer support; scale not recorded for either; ships agent platform rather than the same layer.2 of 2 capabilitiesDifferent layerCompareHHubSpotPublicCustomer Service Agent and Customer Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareLLivePersonAcquiredCustomer Service Agent and LivePerson Voice AI both list customer support; Siena AI's scale not recorded; LivePerson is acquired, with no independent scale.2 of 2 capabilitiesShared product typeCompareSShopifyPublicCustomer Service Agent and Shopify Inbox both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeComparePProxUndisclosedCustomer Service Agent and Prox both list customer support; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSServiceNowPublicCustomer Service Agent and AI Agents both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareOOneInboxUndisclosedCustomer Service Agent and OneInbox both list customer support; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareZZoomPublicCustomer Service Agent and Zoom Virtual Agent Receptionist both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareFLFunnel LeasingUndisclosedCustomer Service Agent and Fenix both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareAAdobePublicCustomer Service Agent and Product Support Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareMmonday.comPublicCustomer Service Agent and monday service both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareTTwilioPublicCustomer Service Agent and Twilio Flex both list customer support; Siena AI's scale not recorded; ships API service, application and 3 more rather than the same layer.2 of 2 capabilitiesDifferent layerComparePParloaLate-stageCustomer Service Agent and Parloa AMP both list customer support; Siena AI's scale not recorded.1 of 2 capabilitiesShared product typeComparePPegasystemsPublicCustomer Service Agent and Pega Customer Service both list customer support; Siena AI's scale not recorded; ships agent platform, application and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareTTrilletUndisclosedCustomer Service Agent and Trillet Voice both list customer support; scale not recorded for either; ships agent platform rather than the same layer.2 of 2 capabilitiesDifferent layerCompareRARetell AIUndisclosedCustomer Service Agent and Retell Chat Agents both list customer support; scale not recorded for either; ships agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSSynthflowEarly-stageCustomer Service Agent and Synthflow Voice AI Agents both list customer support; same layer and the same scale band (early-stage private).1 of 2 capabilitiesShared product typeSame scale bandCompareMMicrosoftPublicCustomer Service Agent and Service Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareKKrispUndisclosedCustomer Service Agent and Krisp Call Center AI both list customer support; scale not recorded for either; ships API service, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareFFive9PublicCustomer Service Agent and Five9 IVA Studio both list customer support; Siena AI's scale not recorded; ships agent platform, application and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareKKore.aiLate-stageCustomer Service Agent and AI for Service both list customer support; scale not recorded for either; ships agent platform and application rather than the same layer.2 of 2 capabilitiesDifferent layerCompareWWhitespaceUndisclosedCustomer Service Agent and Whitespace both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareSSierraLate-stageCustomer Service Agent and Sierra both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareAAiseraAcquiredCustomer Service Agent and Aisera AI Agent Platform both list customer support; Siena AI's scale not recorded; Aisera is acquired, with no independent scale; ships agent platform and application rather than the same layer.2 of 2 capabilitiesDifferent layerCompareKHK HealthLate-stageCustomer Service Agent and PatientGPT both list customer support; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareVSVerint SystemsAcquiredCustomer Service Agent and Verint Copilot Bots both list customer support; Siena AI's scale not recorded; Verint Systems is acquired, with no independent scale; ships agent platform, application and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareOOraclePublicCustomer Service Agent and Oracle Digital Assistant both list customer support; Siena AI's scale not recorded; ships API service, agent platform and 6 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareVVectaraEarly-stageCustomer Service Agent and Customer Support Managed Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareAAmazonPublicCustomer Service Agent and Amazon Connect Customer both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareBABland AIEarly-stageCustomer Service Agent and Bland both list customer support; scale not recorded for either; ships API service and agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareXXiao-iPublicCustomer Service Agent and Xiao-i cognitive intelligence platform both list customer support; Siena AI's scale not recorded; Xiao-i's scale not comparable: only a revenue estimate, no market cap or valuation; ships application and platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareEElevenLabsLate-stageCustomer Service Agent and ElevenAgents both list customer support; Siena AI's scale not recorded; ships API service, agent platform and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareYYandexPublicCustomer Service Agent and Yandex SpeechSense both list customer support; Siena AI's scale not recorded; ships API service, application and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareRRasaEarly-stageCustomer Service Agent and Rasa Platform both list customer support; scale not recorded for either; ships agent platform, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareRARelevance AIEarly-stageCustomer Service Agent and Suni, the Intercom Agent both list customer support; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareBBolnaEarly-stageCustomer Service Agent and Bolna AI voice agents both list customer support; scale not recorded for either; ships agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareWWixPublicCustomer Service Agent and Wix Smart Chat both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareCCoveoPublicCustomer Service Agent and Coveo Case Assist both list customer support; scale not recorded for either; ships API service, application and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCCiscoPublicCustomer Service Agent and Webex AI Workforce Engagement Management both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareZZapierLate-stageCustomer Service Agent and Zapier Chatbots both list customer support; Siena AI's scale not recorded; ships API service, agent platform and 3 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareMPMeta PlatformsPublicCustomer Service Agent and Meta Business Agent both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompareUUniphoreLate-stageCustomer Service Agent and Self-Service Agent both list customer support; Siena AI's scale not recorded; ships application, data service and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareTTencentPublicCustomer Service Agent and Tencent Cloud Agent Development Platform both list customer support; Siena AI's scale not recorded.2 of 2 capabilitiesShared product typeCompare

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

Stage, from total funding

Company disclosure · 20 Oct 2026

"We raised a $17 million Series A led by York IE"

Valuation

Not found · 20 Oct 2026

Pages read for this record state no valuation or market capitalisation.

Founded

Not found · 20 Oct 2026

Pages read for this record state no founding year.

Public listing

Not found · 20 Oct 2026

No listing on the pages read; treated as private.

Description

Official documentation · 20 Oct 2026

Company page: "Siena joins your team by integrating seamlessly with your help desk and commerce stack."

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