The VETTDD 50 · UK startups · 2026
Melissa Chambers
Co-founder and CEO, Sitehop · sitehop.com ↗
Sitehop builds hardware that encrypts data in transit against future quantum attacks. Its co-founder has taken the Sheffield company into telecoms and defense networks, and now into the US
- round led by Northern Gritstone, October 2025
- £7.5m
- countries where a tier-one carrier uses its hardware
- 7
- lower latency than software-only encryption, Sitehop says
- 1,000x
- named a World Economic Forum Technology Pioneer
- Jun 2026