About Philip Harper
Philip Harper is a board director at SirenOpt.
Experience
This experience comes from Philip Harper's profile and from SEC filings. For roles taken from filings, the years are when the filings name Philip Harper in the role, so the role may have started earlier or lasted longer.
ME
Metso Current
Service Business Advisor
2026 – Present
SirenOpt Inc. Current
Board Member (Independent Director)
2024 – Present · San Leandro, CA
SirenOpt sells material inspection systems to manufacturers.
TL
Tribosonics Ltd. Current
Founder and Chief Technology Officer | Executive Board Member
2006 – Present
AX
Axo33
Board Advisor
2023 – 2026
Key Colleagues at Startups
The people Philip Harper works with at each company, as listed on that company's latest Form D.
SirenOpt Inc. · Form D, Sep 18, 2026
MB
Matthew Blain
Board Director
Ali Mesbah
SirenOpt Co-founder & CTO, director
Jared O'leary
Chief Executive Officer and director
TC
Tom Chi
Director