John Halfpenny
Angel investor in Cambridge
Cambridge, England
John Halfpenny, Angel investor in Cambridge is an active investor based in Cambridge, England. This profile covers what John Halfpenny backs, at which stage, and how founders can reach out in 2026.
Mr. John Halfpenny serves as Executive Chairman at Echion Technologies. He serves as an Investment Committee Member at Cambridge Enterprise Ventures. He served as Chief Executive Officer at CMR Fuel Cells. He served as a Board Member at Paragraf. He served as Chief Executive Officer at Splashpower. He has a successful track record as a Director and CXO of several high-tech and clean-tech companies. He has experience in company-level transactions at all stages of the business lifecycle, including start-up to sale and AIM flotation. His considerable commercial experience includes senior positions within global companies such as ARM and Texas Instruments. His extensive international commercial experience encompasses the negotiation of IP licensing, outsourced manufacturing, and distributor and joint venture agreements with organizations across Europe, Asia, and the US. He has a Master's degree in Engineering Science from Cambridge University and holds a variety of non-executive and advisory positions within the science community. He is also a Fellow of the Institution of Engineering and Technology.
- Investor type
- Angel
- Stages
- Early Stage Venture
- Invests in
- Hardware & Deep TechClimate & Energy
- Location
- Cambridge, England
- Typical check
- $500K
- Past investments
- 10
Notable investments
ParagrafPraxisAurilHow to reach John Halfpenny
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Round Funded. "John Halfpenny." Round Funded investor database, updated October 25, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-halfpenny
Frequently Asked Questions
What does John Halfpenny invest in?
John Halfpenny invests in Hardware & Deep Tech and Climate & Energy, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Halfpenny invest at?
John Halfpenny typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is John Halfpenny's typical check size?
John Halfpenny typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
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