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Siena

AI/MLUnited States

Siena AI is a New York-based company, founded in 2023 by Andrei Negrau and Lisa Popovici, that builds AI agents for consumer brands. Its platform covers customer service, shopping, social media and voice agents sharing one data layer of orders, subscriptions and past conversations, and is used by brands such as FIGS, SPANX and HexClad.

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Siena at a glance

Siena is an ai/ml company headquartered in United States. It has raised at least $21.7M across the 2 funding rounds on record. Its most recent funding round, Series A, raised $17M in October 2026. Xcout tracks 4 named people at Siena, including Andrei Negrau (Chief Executive Officer). Xcout recorded 8 job postings from Siena in the last 90 days, naming tools such as ChatGPT, Claude, Cursor.

Industry
AI/ML
Headquarters
United States
Raised, rounds on record
$21.7M
Job postings recorded (90 days)
8
Xcout AI Rank
60/100

Siena leadership

  • Andrei NegrauChief Executive Officer
  • Lisa PopoviciPresident
  • Andrei NegrauCo-founder and CEO
  • Lisa PopoviciCo-founder and President

Siena funding rounds

At least $21.7M raised across the 2 rounds on record. Every round on record:

DateRoundAmountInvestors
Series A$17M5 named
Seed$4.7M8 named

Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →

Hiring at Siena

Xcout recorded 8 job postings from Siena in the last 90 days, from a hiring record Xcout has kept since September 2026.

Tools named in Siena's job postings

ChatGPTClaudeCursorPerplexity

The weekly hiring trend, the roles and locations behind it — see Siena's hiring signals →

Recent Siena news

Investors

Siena competitors

A few of Siena's closest competitors — see the full list of competitors and alternatives →

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More on Siena in Xcout Intel

  • 4 named people with titles, LinkedIn and board committees
  • 2 funding rounds with the investors in each, and who they co-invest with
  • Weekly hiring history and the mix of roles behind it
  • 1 corporate event with sources — deals, leadership changes, layoffs
  • The full competitor set, tracking, exports and API access
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