Siena AI

Siena AI is the first-of-its-kind autonomous customer service platform designed for commerce.

Latest funding

$17M Series A · October 6, 2026

Led by York IE · Source: siena.cx

Total raised: $21.7M across 2 sourced rounds

All 2 rounds ↓

Website: siena.cx.

X: @siena_ai · 779 followers.

LinkedIn: siena-ai.

Categories: AI agents Foundation models and research Sales and marketing.

Sectors: Artificial Intelligence (AI), E-Commerce, Enterprise Software, Machine Learning, Software.

Stage: Series A.

Based in: New York, United States.

Total raised: $21.7M in 2 sourced rounds.

Last round: Oct 6, 2026 · 40 days ago.

On Recent Funding since: Sep 30, 2026.

Signals

X account@siena_ai · created Sep 13, 2022 (4 years old) · 779 followers

Website registeredAug 9, 2022 (4 years old)

About Siena AI

We combine human empathy with advanced LLM-powered automation to redefine how brands like 8Sleep, Kitsch, and Simple Modern engage with their customers.

TIMELINE · MONEY RAISED

Siena AI | 465 days from website to first raise on record

@siena_ai·Raised $22M in 2 sourced rounds·2 signals before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

Date	Round	Amount	Lead	Source
Oct 6, 2026	Series A	$17M	YYork IE	siena.cx
Nov 17, 2023	Round	$4.7M	—	fundraisingfox.com

Timeline

September 13, 2022
X account created
August 9, 2022
Website created

Founders and team

AN
Andrei Negrau Founder
LP
Lisa Popovici Founder

Investors

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York IE portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/siena-ai (get a free API key).