Greenfield Partners — VC Intelligence

Strategy

Geographies

Greenwich, Connecticut, USA

Recent changes

Jun 25, 2026Jun 25, 2026Invested in Patronus AI (Series B, $50M) TechCrunch
May 19, 2026May 19, 2026New fund: Greenfield Partners Fund IV SEC EDGAR Form D

Funds

Fund	Vintage	Size	Strategy	Source
Greenfield Partners Fund IV	2026	—	Flagship	As of May 19, 2026SEC EDGAR Form D

Portfolio

1 total

Patronus AI

Recent Investment Activity

Date	Company	Event	Amount	Valuation	Investors	Source
Jun 25, 2026	Patronus AI	Series B	$50M	—	Greenfield Partners Lightspeed Venture Partners Datadog SamsungNotable Capital outlined = lead	Pulse story

Co-Investors

Datadog · 1 shared Lightspeed Venture Partners · 1 shared Samsung · 1 shared

Latest Pulse

Pulse coverage →

Jun 25, 2026Patronus AI Lands $50M to Build Digital Worlds That Stress-Test AI AgentsPatronus AI raised a $50 million Series B led by Greenfield Partners, with Lightspeed, Notable Capital, Datadog and Samsung participating, bringing total funding to $70 million. The startup builds simulated digital environments -- replicas of websites and internal systems -- where AI agents are stress-tested before deployment, and counts nearly all frontier labs among its customers after 15x revenue growth.→

Sources & methodologyshow

Where these figures come from

SEC EDGAR Form Dprimary source1 fact
TechCrunchmajor outlet1 fact

Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.

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