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Greylock Partners

Founded 1965, one of the oldest VC firms. Early Facebook, LinkedIn, Airbnb investor. Active across AI and enterprise.

Active VC 🇺🇸 United States · Menlo Park, United States · Since 1965
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Portfolio Active
13
Latest Noma Security
Deal flow
$1.1B
10 rounds
Unicorns
3
≥ $1B valuation
Founded
1965
61 yrs
Latest
Mar 2026
XBOW

About Greylock Partners

Founded 1965, one of the oldest VC firms. Early Facebook, LinkedIn, Airbnb investor. Active across AI and enterprise.

Investment activity

2024–2026
$407M
$388.6M
$120M
3
'24
6
'25
1
'26

Portfolio

13

Co-investors

8

Recent rounds

10
Mar 18, 2026 Series C $120M Lead XBOW
Aug 21, 2025 Series E $203M Nuro
Jul 31, 2025 Series B $100M Lead Noma Security
Jun 1, 2025 Series A $40M Mandolin
May 21, 2025 Series A $15M Lead Greenlite AI
May 1, 2025 Seed $6M Paramark
Jan 27, 2025 Seed $24.6M Manas AI
Nov 20, 2024 Series D $200M Lead Grammarly
Nov 12, 2024 Series A $32M Lead Noma Security
Oct 29, 2024 Series B $175M Lead Sierra