Agent of Record and AI CX operating system for consumer brands
Siena is a New York-based AI customer experience platform for consumer brands, combining autonomous service, shopping, and social agents with shared customer intelligence (orders, subscriptions, reviews, and prior conversations). Founded in 2023 by Andrei Negrau (CEO) and Lisa Popovici (president), both former Shopify merchants, it reports hundreds of brands on the platform including SPANX, FIGS, and HexClad.
AI📍 New York, NYFounded 2023
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Siena going public?
No. Siena is private and has not filed to go public. There is no S-1 on file.
What is Siena's valuation in 2026?
No confirmed valuation is on record for Siena. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Siena filed an S-1?
No public S-1 is on file for Siena.
Who are Siena's investors?
Siena's investors include York IE, Joyance Ventures, Aglaé Ventures, Sierra Ventures, Super Angel Fund.
How much has Siena raised?
Siena has raised $29.7M in total across 1 disclosed round, most recently a Series A of $17M in Oct 2026.
Is Siena publicly traded — can you buy Siena stock?
No. Siena is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Siena on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Andrei Negrau
Founded
2023
HQ
New York, NY
Total Raised
$29.7M
Growth
Reports handling up to 80% of customer interactions for some brands (company/marketing materials)
Last Round
Series A — $17M (Oct 2026) · Lead: York IE
IPO Status
private
Fundraising Status
Series A · $17M · this month
privateTotal raised $29.7M1 disclosed rounds
Funding History
Round
Amount
Date
Lead Investor
Post-Money
Series A
$17M
Oct 2026
York IE
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Vertical Intelligence — AI / ML
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Talent Signal
Hiring data for Siena has not been collected yet — the monthly talent sweep hasn't reached this company. Check back soon.
Founders & Key People
Andrei NegrauLisa Popovici
Investors
York IE · Joyance Ventures · Aglaé Ventures · Sierra Ventures · Super Angel Fund
Products
Customer Service Agent
Shopping Agent
Social Agent
Agent of Record intelligence layer
AICustomer SupportE-commerceRecently Funded
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.