Sapphire Ventures | Activity | F4

Sapphire Ventures Activity

Every public signal F4 has attached to this firm, with sources and cross-entity links.

Types

Time range

Investment

Sapphire Ventures backed Reactor, the developer platform for world models, in a funding round announced October 5, 2026.

Reactor

Reactor Sapphire Ventures

sapphireventures.comOCT 5, 2026

OCT 5, 2026

Investment

Sapphire Ventures backed Gimlet Labs, the first multi-silicon inference cloud for agentic AI infrastructure, in a Series B round announced September 4, 2026.

Gimlet Labs

Gimlet Labs Sapphire Ventures

sapphireventures.comSEP 4, 2026

SEP 4, 2026

Essay

Sapphire Ventures published a market map and essay on Physical AI, arguing that robotics is approaching its ChatGPT moment, published August 27, 2026.

Physical AI: The Countdown to Robotics' ChatGPT Moment

Sapphire Ventures

sapphireventures.comAUG 27, 2026

AUG 27, 2026

Essay

Sapphire Ventures published a market map and essay on AI x Design, covering how AI is bridging the gap from creative to code, published July 28, 2026.

AI x Design: Bridging the Gap from Creative to Code

Sapphire Ventures

sapphireventures.comJUL 28, 2026

JUL 28, 2026

Investment

Sapphire Ventures invested in Chai Discovery, an AI-powered drug discovery company, in a Series C round announced July 14, 2026.

Chai Discovery

Chai Discovery Sapphire Ventures

sapphireventures.comJUL 14, 2026

JUL 14, 2026

Essay

Published a midyear strategy memo reviewing enterprise AI investment themes for 2026.

2026 Midyear Review

Sapphire Ventures

sapphireventures.comJUL 1, 2026

JUL 1, 2026

Essay

Published a market map on how AI is transforming the drug development stack.

How AI is Rewiring the Drug Development Stack

Sapphire Ventures

sapphireventures.comJUN 16, 2026

JUN 16, 2026

Investment

Invested in Current, a US challenger bank.

Current

CurrentSapphire Ventures

sapphireventures.comJUN 11, 2026

JUN 11, 2026

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

Sapphire Ventures

lgtcp.comAPR 15, 2026

APR 15, 2026

Essay

Published an investment thesis identifying underappreciated vertical AI markets.

The Biggest Vertical AI Markets Are Hiding in Plain Sight

Sapphire Ventures

sapphireventures.comAPR 15, 2026

APR 15, 2026

Essay

Published a thesis essay on reinforcement learning environments for AI agents.

Reinforcement Learning: Learning by Doing

Sapphire Ventures

sapphireventures.comAPR 13, 2026

APR 13, 2026

3 investments· FEB 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

Upvest Sapphire Ventures

sapphireventures.comMAR 17, 2026

MAR 17, 2026

Investment

Backed Temporal's $300M Series D at a $5B valuation to support durable execution infrastructure for agentic AI.

Temporal

Temporal Sapphire Ventures

sapphireventures.comFEB 17, 2026

FEB 17, 2026

Investment

Led Bretton AI's $75M Series B for AI-driven financial crime operations.

Bretton AI

Bretton AISapphire Ventures

sapphireventures.comFEB 10, 2026

FEB 10, 2026

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