Greylock is a Menlo Park-based early-stage venture firm founded in 1965, one of Silicon Valley's oldest and most decorated venture institutions. The firm has been an early partner to some of the defining companies of the internet era, including LinkedIn, Airbnb, Facebook, Workday, Palo Alto Networks, Roblox, Dropbox, Instagram, and Discord. Across its history, Greylock has been involved in more than 100 IPOs and 250 acquisitions. With Greylock 18, the firm formally declares an AI-first mandate, its most significant strategic repositioning in decades.
Greylock backs early-stage AI-native founders across infrastructure, cybersecurity, applications, deep tech, consumer, and fintech.
The firm invests at seed and Series A, partnering with a highly selective number of founders per partner per year and building with them from inception to IPO and beyond.
Greylock views AI as having made the technology map blank again, every part of the economy open to reinvention, and believes many of the defining AI companies do not yet exist.
Greylock 18 closed at $1.5 billion in July 2026.
The fund continues the firm's strategy of highly concentrated, founder-first investing at the earliest stages.
LP composition is not publicly disclosed.
Leadership
Saam Motamedi is General Partner and the primary public voice on Greylock 18, a Stanford University graduate known for early investments in Abnormal AI, Cresta, 7AI, Resolve AI, and Braintrust.
Reid Hoffman is Partner and co-founder of LinkedIn, with a long investing history at Greylock spanning OpenAI, Airbnb, and consumer internet companies.
Asheem Chandna is Partner, a longtime cybersecurity investor at Greylock known for backing Palo Alto Networks (founding investment), Chronosphere (acquired by Palo Alto for $3.35B), and Rubrik (IPO 2024).
Jerry Chen is Partner focused on infrastructure and enterprise software.
Seth Rosenberg is Partner focused on fintech and AI SaaS.
David Sze is Partner focused on consumer internet and social platforms, having led Greylock's investments in LinkedIn, Facebook, and Discord.
Investment Strategy
Each Greylock partner makes one to two new investments per year, a concentration model that distinguishes the firm from multi-stage platforms that spread attention across dozens of companies.
Post-investment, Greylock's in-house talent, recruiting, customer development, and marketing teams work actively alongside portfolio companies: sourcing more than half of early engineering, design, and product hires, helping land the majority of initial enterprise customers, and supporting messaging, positioning, and company launches.
The firm partners with founders from the earliest stages and maintains relationships through IPO and beyond.
Notable Investments
Notable Exits
Saam Motamedi — General Partner
Reid Hoffman — Partner
Asheem Chandna — Partner
Jerry Chen — Partner
jerry@greylock.com
Seth Rosenberg — Partner
srosenberg@greylock.com
David Sze — Partner
Sophia Luo — Partner
sluo@greylock.com
David Strohm — Partner
dstrohm@greylock.com
Madissen Turris — Executive Assistant
mdeturris@greylock.com
United States
