Siena

United States · AI · Enterprise software

AI customer service and commerce agents that share context across a consumer brand’s customer relationships.

Product

Siena builds AI agents for consumer brands, combining customer conversations with order, subscription and product information. Its shared context helps teams coordinate support, shopping and other customer interactions.

The New York company was founded by Andrei Negrau and Lisa Popovici. Its October 2026 Series A supports more autonomous agents and the infrastructure behind its Agent of Record platform.

Funding history

1 round · 1 with disclosed amounts
AnnouncedRoundAmountInvestors
Series A$17MYork IE — Lead
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