About John Campbell
John Campbell is a chief executive officer, co-founder and director at Siloam Vision.
Experience
This experience comes from SEC filings. The years are when the filings name John Campbell in the role, so the role may have started earlier or lasted longer.
Siloam Vision, Inc.
Chief Executive Officer, Co-Founder and director
2025 – 2026 · Portland, OR
Eye imaging devices and examination software for clinicians caring for patients of all ages.
Key Colleagues at Startups
The people John Campbell works with at each company, as listed on that company's latest Form D.
Siloam Vision, Inc. · Form D/A, Jul 17, 2026
KJ
Karyn Jonas
Chief Development Officer, Co-Founder
TS
Tong Sun
Executive officer
RC
Robison Vernon Paul Chan
Co-Founder