Grace Cassy is a Partner at Ten Eleven Ventures focusing on cybersecurity and defense technology. She previously co-founded CyLon and worked for ten years within the UK Government.
What Grace can write
Ten Eleven Ventures writes $1M to $30M checks, larger than 83% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: Ten Eleven Ventures.Career
- UK Government · advisor to Prime Minister Tony Blair on foreign policy and national security
- CyLon · Co-Founder
- Ten Eleven Ventures · Partner & Executive Chair of Security Trust and Resilience NetworkNow
- UK Government · advisor to Prime Minister Tony Blair
- Ten Eleven Ventures · PartnerNow
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Who is Grace Cassy?
Grace Cassy is a Partner at Ten Eleven Ventures focusing on cybersecurity and defense technology. She previously co-founded CyLon and worked for ten years within the UK Government.
How much does Grace Cassy invest?
Grace Cassy invests through Ten Eleven Ventures, which writes checks of $1M to $30M at pre-seed, seed, series a, series b.
How do I pitch Grace Cassy?
A warm intro from a founder Ten Eleven Ventures backed works best.
What did Grace Cassy do before Ten Eleven Ventures?
advisor to Prime Minister Tony Blair on foreign policy and national security at UK Government; Co-Founder at CyLon; advisor to Prime Minister Tony Blair at UK Government.
Last updated 2026-10-15. Is this you? Ask for a correction.