An angel investor and operator angel based in Zürich, Switzerland, James Isilay has 8 known investments: 5Mins, MONET, Connect4, Hyperbound, viso.ai, Kluster, SkyeBrowse and Adadot.
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Investment focus
Contacts
James Isilay portfolio companies (8)
- 5Mins
- MONET
- Connect4
- Hyperbound
- viso.ai
- Kluster
- SkyeBrowse
- Adadot
Affiliated funds' portfolios
Investor at Stealth, whose known portfolio counts 6 companies
- Lingopal
- NVision Imaging Technologies
- GEMGEM
- Hilt
- Scarlet AI
- SimuPhish
Investor Profile
The known portfolio sits in sectors AI, Consumer, FinTech and SaaS, and focus areas Analytics, CRM, Enterprise SaaS and Lead Generation.
Stage-wise, the known deals cluster around Pre-Seed and Seed rounds.
The portfolio and focus above give founders context on whether James Isilay matches their raise.
Colleagues at Stealth
Showing 20 of 86
Ali Sina
Founder and CEO
Irvine, United States
Vishal Lugani
Stealth │ Venture Capital Investor
San Francisco, United States
Kerem Ozkan
Investor
New York, United States
Nurzhas M.
Founder
San Francisco, United States
Christian Stiebner
Venture Partner
Germany
Wenyi Zhu
Angel Investor
San Francisco, United States
Baris Aksoy
Investor
San Francisco, United States
Thomas Williams
Board
United Kingdom
Jordan Clifford
Investor
Austin, United States
Sean Fee
Founder, Executive, Investor
San Francisco, United States
George Stamelos
Investor
London, United Kingdom
Marissa Bertorelli
Investor
San Francisco, United States
Justus Byok
Affiliated
Berlin, Germany
Gareth Keane
Investor
Santa Clara, United States
Gosia Karas
Investor
New York, United States
Aaryaman Vir Shah
Affiliated
Mumbai, India
Manish Gambhir
Board Member
New Delhi, India
Deon Nicholas
Investor
San Mateo, United States
Thilakshan K.
Investor
Atlanta, United States
Eyal Miller
Co-Founder and Managing Partner
Tel Aviv, Israel
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Frequently asked questions
Who is James Isilay?
James Isilay is an angel investor and operator angel based in Zürich, Switzerland with 8 known investments on file, among them 5Mins, MONET and Connect4. The sections above list the sectors, stages and firms attached to that record.
What does James Isilay invest in?
Listed sectors include AI, Consumer, FinTech and SaaS; listed focus areas include Analytics, CRM, Enterprise SaaS and Lead Generation. 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 James Isilay invest at?
The known deals of James Isilay 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 James Isilay listed at?
James Isilay is listed as Investor at Stealth. 86 other people in the database share a firm with James Isilay.
How do I contact James Isilay?
An email address, a phone number and a LinkedIn page are on file for James Isilay. 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