Siena Raises $17M Series A

Siena, a New York-based artificial intelligence company providing an agent of record platform for consumer brands, has announced the closing of a $17 million Series A funding round. This new capital brings the company's total funding raised to $29.7 million to date.

Investors

The funding round was led by York IE, with participation from Joyance Ventures and existing investors Aglaé Ventures and Sierra Ventures.

Siena Use of Funds

Siena plans to use the new capital to build additional autonomous agents and expand the infrastructure consumer brands use to serve customers and drive revenue growth.

About Siena

Founded in 2023 by cofounders Andrei Negrau and Lisa Popovici, Siena offers an AI-driven customer experience platform. The company provides a shared intelligence layer that helps human and AI teams manage support, shopping, social engagement, and customer retention, acting as an Agent of Record to help brands understand and interact with their customers.

Funding Details

Company Website: https://siena.cx

Company: Siena
Raised: $17M
Round: Series A
Funding Date: October 6, 2026
Lead Investor: York IE
Additional Investors: Joyance Ventures, Aglaé Ventures, Sierra Ventures
Software Category: AI Customer Experience