Greylock
Early-stage
Investment focus
Greylock partners with ambitious, inventive entrepreneurs at the earliest stages — pre-seed through Series A — to build enduring companies in AI, cybersecurity, infrastructure, SaaS, consumer, and fintech, with over 80% of investments being first checks.
Founded1965
HQMenlo Park, California
RegionUS · SF Bay
StagesPre-Seed · Seed · Series A
Check sizeNot publicly disclosed; fund sizes historically ~$1B per flagship fund
Sectors
EnterpriseAISecurityConsumer
Notable portfolio
AirbnbLinkedInFacebookFigmaDiscordCoinbasePalo Alto NetworksWorkday
Recent activity (2025–26)
- Altara (2026, Seed) — scientific intelligence platform for physical sciences
- Cylake (2026, Seed) — AI-native cybersecurity for regulated industries
- Cogent Security (2025, Seed) — AI taskforce for vulnerability management
