Sapphire Ventures | Activity | F4Sapphire Ventures Activity
Every public signal F4 has attached to this firm, with sources and cross-entity links.
Essay
Published a midyear strategy memo reviewing enterprise AI investment themes for 2026.
2026 Midyear Review
Essay
Published a market map on how AI is transforming the drug development stack.
How AI is Rewiring the Drug Development Stack
Investment
Invested in Current, a US challenger bank.
Current
Team Change
Sapphire Partners' six-person fund-of-funds investment team, co-led by Beezer Clarkson, transitioned to LGT Capital Partners.
Sapphire Partners team transitions to LGT Capital Partners
Essay
Published an investment thesis identifying underappreciated vertical AI markets.
The Biggest Vertical AI Markets Are Hiding in Plain Sight
Essay
Published a thesis essay on reinforcement learning environments for AI agents.
Reinforcement Learning: Learning by Doing
4 investments· JAN 2026 – MAR 2026Show all
Investment
Led Upvest's $125M financing ($90M equity + $35M debt), expanding on a prior Series C co-lead, to back Europe's AI-driven investing infrastructure.
Upvest
Investment
Backed Temporal's $300M Series D at a $5B valuation to support durable execution infrastructure for agentic AI.
Temporal
Investment
Led Bretton AI's $75M Series B for AI-driven financial crime operations.
Bretton AI
Investment
Co-led Onebrief's $200M Series D alongside Battery Ventures for its command operating system for global defense.
Onebrief
News
Published a 2025 year-in-review recapping investment activity and 40+ portfolio and industry networking events.
Sapphire Ventures: 2025 Year in Review