Greylock Partners is one of the oldest venture capital firms, founded in 1965 and based in Menlo Park, California. The firm focuses on being the first institutional partner for founders, with over 80% of investments at the Pre-Seed, Seed, or Series A stages across enterprise and consumer software, with a strong emphasis on AI-first companies.
Average disclosed round size is $63.3M (across 478 rounds with reported amounts).
Portfolio
308
Fund Size
$1B
Top Stage
Series B
Last 12 Mo
21
Team
Bill Elfers
Founding Partner
CW
Charlie Waite
Founding Partner
DG
Dan Gregory
Founding Partner
Bill Kaiser
Partner Emeritus
Bob Henderson
Special Limited Partner
Dave Strohm
Venture Partner
Howard Cox
Special Limited Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
546 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Obsidian Security | Series D | $85M | Aug 2026 |
 Baseten | Series B | $1.5B | Jun 2026 |
 Knode.AI | Seed | — | Jun 2026 |
 Altara | Seed | $7M | May 2026 |
 Censys | Series D | $70M | Mar 2026 |
 Entrepreneur First | Growth | $200M | Mar 2026 |
 Pepper | Series C | — | Feb 2026 |
 Cogent Security | Series A | $42M | Feb 2026 |
 Bretton AI | Series B | $75M | Feb 2026 |
 Resolve Ai | Series A | $125M | Feb 2026 |
 Upwind | Series B | $250M | Jan 2026 |
| UUpwind Security, Inc. | Series B | $250M | Jan 2026 |
 District | Seed | $14.7M | Jan 2026 |
| CCogent | Series A | $11M | Jan 2026 |
| Baseten | Series E | $300M | Jan 2026 |
 Axiamatic | Unknown | $54M | Jan 2026 |
 Pepper | Series C | $50M | Jan 2026 |
 Braintrust | Series B | $80M | Jan 2026 |
 Bedrock Data | Series A | — | Nov 2025 |
 SuperMe | Seed | — | Nov 2025 |
 Tenzai | Seed | $75M | Nov 2025 |
 Wealthsimple | Growth | $750M | Oct 2025 |
 AmplifyMD | Series B | $20M | Sep 2025 |
 Modular | Growth | — | Sep 2025 |
| MManas | Seed | $24.6M | Sep 2025 |
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Top Co-Investors
Sequoia Capital61 shared
GV46 shared
Andreessen Horowitz46 shared
Index Ventures44 shared
SV Angel39 shared
Y Combinator38 shared
Lightspeed Venture Partners31 shared
Battery Ventures30 shared
General Catalyst28 shared
Tiger Global Management, LLC26 shared
Spark Capital26 shared
Accel24 shared
Benchmark23 shared
Bain Capital Ventures22 shared
New Enterprise Associates21 shared
Founders Fund20 shared
T. Rowe Price19 shared
Menlo Ventures18 shared
Khosla Ventures17 shared
Last updated: 27 September 2026