John Trefethen – Startup Investor Profile

John Trefethen is the Chief of Product & Marketing at Radius XR and a Co-Founder/Partner at The Altitude Group. He has over twenty-five years of technology, education, marketing, and design experience. Previously, he has held roles such as Chief Marketing Officer at Heru, Vice President of Global Marketing & Product Design at Topcon Healthcare, and Global Head of Marketing at Topcon Healthcare. John is involved in early diagnosis for vision loss through Radius XR and provides go-to-market advantages through The Altitude Group, specializing in helping companies bring products to market. His career spans across various industries and leadership positions, showcasing a track record of building businesses and launching successful companies.

Location: Minneapolis, Minnesota

Country: United States of America

Investment Regions:

Investment Stages: pre-seed, seed

Website: https://www.breadandbutterventures.com/

AI Reasoning: Searches on public sources (Signal NFX, LinkedIn, company pages) returned profile information for John Trefethen (roles at Radius XR, The Altitude Group, partner at Bread and Butter Ventures) but did not contain any dated investment entries or press releases showing specific investments or dates. No verifiable recent investment (with startup name and date) was found to calculate activity. Therefore classify as not-found.

Low Activity – Only known angel investments more than 12 months ago.

Active – Known angel investments between the last 12 and 6 months.

Very Active – Known angel investments in the last 6 months.