About John Williams
Bluesonde builds buoys that monitor water quality. John Williams is its chief operating officer and co-founder, and a director. He runs operations and mechanical engineering, which cover manufacturing, supply chain and product development.
Earlier in his career, he took medical devices from concept to production. He led multidisciplinary engineering teams and handled complex regulatory requirements.
Experience
This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name John Williams in the role, so the role may have started earlier or lasted longer.
Bluesonde Technologies, Inc. Current
COO & Co-Founder, director
2026 – Present · Portland, ME
Bluesonde builds compact, low-maintenance buoys that track water quality continuously and send the readings to a cloud platform.
Key Colleagues at Startups
The people John Williams works with at each company, as listed on that company's latest Form D.
Bluesonde Technologies, Inc. · Form D, Oct 29, 2026
Andrew Thompson
CEO & Co-Founder, director
Tim Dyson
CTO & Co-Founder, director