Arlequin AI
An AI data-analysis platform for governments and large organisations that connects fragmented records and surfaces traceable relationships for consequential decisions.
€28MSeries A
ParticipantXN
Xavier Niel
Activity from announced rounds
Activity in this selectionOct 27, 2026 · Europe · Jan 1, 2026
Xavier Niel is the individual investor named in financing announcements from Arlequin AI, Gradium and AMI Labs.
Recorded funding activity
Arlequin develops data-analysis tools for governments and enterprises. Gradium develops low-latency voice models. These are personal investments recorded in RoundOS; Upstream’s separately reported financing is attributed to Kima Ventures.
- Rounds participated in
- 2
- Confirmed lead rounds
- 0 All roles disclosed
- New companies
- 2 First participation on record · 0 follow-on
- Funding in participating rounds
- $1.1B 2 disclosed · full round size, not this investor’s share