Siqi Chen is an angel investor and operator angel based in San Francisco, California, United States. The known portfolio counts 22 companies, including Atmos, Sentra, Sauna by Wordware, Sandbox VR, Rork, Turing.com, WorkWhile, Azura, Emergent, Tazah Technologies, Hyperspell and Redcar.
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Investment focus
Contacts
Siqi Chen portfolio companies (22)
- Atmos
- Sentra
- Sauna by Wordware
- Sandbox VR
- Rork
- Turing.com
- WorkWhile
- Azura
- Emergent
- Tazah Technologies
- Hyperspell
- Redcar
- Retell AI
- Smashgg
- Lowkey
- ego AI
- Destiny
- Stream Club
- Khabri
- Troveo AI
- Laserlike Inc
- Zelos Gaming
Affiliated funds' portfolios
Angel Investor at Ardian, whose known portfolio counts 10 companies
- Unite
- HR Path
- Infrastrutture Wireless Italiane
- Heathrow Airport Holdings
- JPB Systeme
- La Financière d'Orion
- MXT Holdings
- Mon Véto
- My Pie
- Sicer
Investor Profile
The listing covers sectors AI, Consumer, FinTech and SaaS, and focus areas Automation, Data Analytics, Enterprise SaaS and Financial Analytics. Startups operating in these areas may find Siqi Chen relevant.
Siqi Chen appears in Pre-Seed and Seed rounds across the known deals.
The portfolio and focus above give founders context on whether Siqi Chen matches their raise.
Colleagues at Ardian
Showing 20 of 83
Mathilde Collin
Investor
San Francisco, United States
Nishkaam Mehta
Investor
San Francisco, United States
Eric Nadalin
Early stage investor & founder advisor
London, United Kingdom
Hilliary Bianca Salamanca
Angel Investor
Brooklyn, United States
Ivan Zakharenkov
Angel Investor
Saint John, Canada
Mubeen Malik
Operating Partner
Washington, United States
Abraham Thomas
Angel Investor
Toronto, Canada
Thibault Basquin
Member of the Executive Committe
New York, United States
Mathias Burghardt
CEO Ardian France
Paris, France
Dominique Senequier
Chief Executive Officer & Founder of Ardian
Paris, France
Charles Welham
Angel Investor
London, United Kingdom
Piers Henwood
Investor
Victoria, Canada
Deepak M.
Angel Investor
San Francisco, United States
Caroline Giese
Joint Venture Broker
London, United Kingdom
Malcolm Chapman
Angel Investor
Cheltenham, United Kingdom
Daniel Franco
startup Investor
Madison, United States
Liron Sason
Angel Investor
Tel Aviv, Israel
Edward Colet
Angel Investor
Washington, United States
Arnaud Dufer
Head of ARDIAN Expansion France
Paris, France
Richard Frank
Company Director
Watford, United Kingdom
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Frequently asked questions
Who is Siqi Chen?
Siqi Chen is an angel investor and operator angel based in San Francisco, California, United States with 22 known investments on file, among them Atmos, Sentra and Sauna by Wordware. The sections above list the sectors, stages and firms attached to that record.
What does Siqi Chen invest in?
Listed sectors include AI, Consumer, FinTech and SaaS; listed focus areas include Automation, Data Analytics, Enterprise SaaS and Financial Analytics. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Siqi Chen invest at?
The known deals of Siqi Chen include Pre-Seed and Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Siqi Chen listed at?
Siqi Chen is listed as Angel Investor at Ardian. 83 other people in the database share a firm with Siqi Chen.
How do I contact Siqi Chen?
An email address, a phone number and a LinkedIn page are on file for Siqi Chen. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal