Siena AI

Siena AI is a customer experience platform that runs AI agents for support, shopping, social comments and quality review on behalf of consumer and DTC brands. It suits CX leaders at Shopify brands who want to automate post-purchase tickets in their own brand voice while keeping their existing helpdesk.

Siena is an AI customer experience platform for consumer brands, most of them direct-to-consumer sellers in beauty, apparel, health and home goods. The company was founded in 2023 by Andrei Negrau and Lisa Popovici, who previously built the conversational commerce tool Cartloop, and it started with a single AI customer service agent for online shops. That agent still handles the post-purchase work: order tracking, address changes, return labels, refunds, replacements and subscription changes such as skip, pause or swap. Siena has since added a Shopping Agent that answers product questions and recommends items inside the conversation, a Social Agent that replies to comments and DMs, a QA Agent that scores every conversation, a Reviews Agent, and Ask Siena, which lets brand operators query customer data in plain language. The company calls the shared data layer underneath the Agent of Record. It combines conversations, orders, subscriptions, reviews, loyalty data and brand knowledge, so a return logged by the support agent can inform what the shopping agent recommends later. Siena sits on top of the helpdesk a brand already runs (Zendesk, Gorgias, Kustomer, Gladly or Dixa) and pulls commerce data from Shopify or Fulfil. Named customers include SPANX, FIGS, HexClad, Comfrt, Kitsch, Grüns and Coterie. On October 6, 2026 Siena announced a $17M Series A led by York IE, bringing total funding to $29.7M. The Next Web named Gorgias, Intercom's Fin and Sierra as competitors and reported a phone voice agent as still in development at the time of the raise.

Category

AI Agents & Orchestration

Pricing

Subscription, Usage-based

Target Market

Heads of Customer Experience, E-commerce Directors, CMOs, CX Operations Managers

Deployment

Cloud-only

Founded

2023

Headquarters

New York, USA

Customers

Hundreds of brands (company claim, October 2026)

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  Customer Service Agent

  Resolves post-purchase requests such as order tracking, address changes, return labels, refunds and replacements without a human touching the ticket.

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  Shopping Agent

  Answers product questions and recommends items inside the conversation, so shoppers can buy without leaving the chat.

• ✓
  Social Agent

  Replies to comments and DMs on social channels, answering product questions and capturing purchase intent where customers already are.

• ✓
  Agent of Record memory layer

  Combines conversations, orders, subscriptions, reviews and loyalty data so every Siena agent works from the same customer history.

• ✓
  QA Agent

  Automatically scores every conversation, giving CX leads quality coverage that manual sampling of a few tickets cannot provide.

• ✓
  Ask Siena

  Lets brand operators ask questions of customer data in plain language; Coterie says a weeks-long analysis became a ten-minute query.

• ✓
  Guardrails and enterprise controls

  Brand voice rules, business rules, human handoff, SAML SSO, granular permissions and audit logs keep agent replies on policy.

• •
  Automating where-is-my-order tickets

  A DTC brand routes order status, address change and return label requests to the Customer Service Agent, freeing human agents for complex cases.

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  Subscription retention

  Customers who ask to cancel are offered skip, pause or swap options in the chat, with alternatives and upsell offers before a cancellation.

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  Social commerce engagement

  Eskiin used the Social Agent on comments and DMs and reported a 50% rise in weekly comment engagement and 15 hours a week saved.

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  Tracing complaint spikes

  SPANX used Siena Intelligence to trace a jump in shipping complaints back to one carrier problem in one region.

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  Conversation QA at full coverage

  A CX lead uses the QA Agent to grade every AI and human conversation and spot where the agent escalates poorly.

Siena's pricing page lists a $750/month platform fee plus $0.90 per automated ticket, with implementation and support priced by quote. A competitor's breakdown (eesel AI) puts 3,000 automated conversations a month at about $3,450 before volume discounts, and notes the charge applies per automated conversation whether or not the issue was resolved. There is no free trial or self-serve plan.

This page was written from 6 sources, 4 on domains other than siena.cx.

1. 1.siena.cx — siena.cxvendor
2. 2.siena.cx — pricingvendor
3. 3.sienaai.trust.site — sienaai.trust.site
4. 4.finance.yahoo.com — siena raises 17m series expand 113000462
5. 5.thenextweb.com — siena 17m series a york ie ai agents
6. 6.eesel.ai — siena ai review