Greylock

greylock.com ↗Activity from announced rounds

Activity in this selectionUnited States · Oct 15, 2026 · Jul 18, 2026

Technology investing with an emphasis on early company building, plus recorded funding events across AI software and infrastructure.

Working with companies from their early formation

Greylock is a technology investment firm that emphasises working closely with founders from the earliest company-building stages. It describes early partnerships with small teams and companies started inside its offices, including Palo Alto Networks and Abnormal. Partners contribute their network and operating support as the companies develop.

Activity recorded in RoundOS

Covered events include financings for Baseten, Lightfield, Antioch, Altara and Upwind Security. Some companies appear more than once because RoundOS records separate financing events over time. The activity shown here is the covered event history; Greylock’s own portfolio offers broader company information.

Sources
Rounds participated in
3
Confirmed lead rounds
1
All roles disclosed
New companies
2
First participation on record · 1 follow-on
Funding in participating rounds
$79M
2 disclosed · full round size, not this investor’s share

By stage

Series A2
Undisclosed1

By primary sector

AI1
Cybersecurity1
Enterprise software1

By country

United States3

Rounds

3 in this selection
Antioch

Cloud simulation software helps robotics and autonomy teams develop and test physical AI systems before deployment.

$32MSeries A
Lead
Lightfield

Lightfield is an AI-native CRM that builds a shared, continuously updated record of a company's customers for employees and agents.

$47MSeries A
Participant
Upwind Security

Provides runtime-first cloud security platform for enterprises

~$300MFunding
Participant