Venture Capital

Greylock Partners

Greylock Partners is one of the oldest and best-known venture capital firms in the United States, founded in 1965 in Cambridge, Massachusetts and headquartered in Menlo Park, California. Greylock is an early-stage-focused firm that partners with founders at the pre-seed, seed, and Series A stages, deploying the majority of its capital as a first check and continuing to back companies through Series B and beyond. The firm reports over $3.5 billion in committed capital under management. Greylock invests across enterprise and consumer software with an explicitly AI-first thesis, concentrating on applications, infrastructure, cybersecurity, fintech, consumer, and deep tech. Its portfolio and alumni network includes category-defining companies such as LinkedIn, Facebook, Airbnb, Workday, Palo Alto Networks, Cloudera, Coinbase, Figma, Discord, and Anthropic. Partners include Reid Hoffman, Asheem Chandna, Saam Motamedi, Jerry Chen, David Sze, and Mike Duboe.

157 portfolio companies 157 publish APIs here 13 properties
Venture CapitalSeedSeries AArtificial IntelligenceEnterprise SoftwareCybersecurityFintechInfrastructureConsumerSilicon Valley
Portfolio Strength across 157 profiled portfolio companies on the network
19 top-rated API companies 7 exemplar · 12 strong
43 agent-ready companies 4 agent-native · 39 agent-ready
Average quality of the book:
Composite thin 30.4
Agent-Readiness agent-aware 19.3

Firms are ranked by cumulative portfolio strength — how many highly-rated API companies they've backed, weighted by tier across composite quality and agent-readiness. The averages below are a secondary read on the typical company in the book.

Greylock Partners has 157 portfolio companies tracked on the APIs.io network, of which 157 (100%) publish APIs indexed here.

Its highest-rated API providers on the network are Figma, Anthropic, ServiceNow, Okta, LinkedIn.

Portfolio on the Network

Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.

Exemplar 7 Complete, well-documented, and agent-ready
Figma 16 APIs 76.8 Anthropic 24 APIs 75.0 ServiceNow 63 APIs 74.2 Okta 28 APIs 72.0 LinkedIn 65 APIs 70.2 Workday 50 APIs 70.2 OpenAI 51 APIs 69.0
Strong 12 Solid coverage with minor gaps
Ramp 11 APIs 64.3 Censys 14 APIs 63.2 Lightfield 13 APIs 62.9 Upwind 12 APIs 61.8 Discord 29 APIs 61.5 0x Labs 5 APIs 61.1 Opal Security 22 APIs 60.5 Instagram 9 APIs 58.8 Coinbase 29 APIs 57.6 Gladly 28 APIs 57.4 WarpStream 8 APIs 56.3 Instabase 6 APIs 56.1
Developing 28 Usable, with meaningful gaps to close
Magic Eden 11 APIs 55.1 Builder.io 6 APIs 54.7 Airbnb 11 APIs 54.3 AppDynamics 25 APIs 54.2 Delphix 60 APIs 53.2 Cribl 32 APIs 52.0 Coda 18 APIs 51.4 Revolut 46 APIs 51.1 Facebook 21 APIs 50.5 Mammoth Media 1 API 49.9 Pure Storage 130 APIs 49.6 AirOps 1 API 49.3 Dropbox 28 APIs 49.0 Redfin 7 APIs 48.2 Docker 15 APIs 48.0 Postscript 4 APIs 47.7 Common Room 23 APIs 47.6 Baseten 3 APIs 47.1 Ava Protocol 10 APIs 46.0 PayJoy 9 APIs 46.0 Predibase 7 APIs 45.5 Blockaid 23 APIs 45.1 LlamaIndex 20 APIs 44.9 Braintrust 29 APIs 44.7 Sumo Logic 25 APIs 43.9 Boost 8 APIs 43.8 Validere 55 APIs 43.8 Medium 6 APIs 42.2
Thin 32 Limited public surface area
Rhumbix 3 APIs 41.2 Rubrik 8 APIs 40.8 Vori 1 API 40.7 Demisto 24 APIs 40.6 Modular 1 API 40.1 Roblox 8 APIs 39.9 Nextdoor 6 APIs 39.7 Skyhigh 1 API 39.7 Pandora 1 API 39.4 Wisetack 1 API 39.4 Espresso 1 API 38.3 Orb 11 APIs 38.1 Blend 1 API 37.8 Cato Networks 1 API 37.5 Uplimit 6 APIs 36.6 Pinata 6 APIs 36.5 Inflection 5 APIs 36.4 GoFundMe 10 APIs 36.2 Clockwise 1 API 35.8 Natoma 35.4 Reduct 1 API 34.4 Snorkel AI 4 APIs 34.4 Handshake 1 API 33.5 Cloudera 12 APIs 33.4 Onehouse 1 API 33.4 Shortcut 7 APIs 33.4 Pragma 2 APIs 33.1 Chronosphere 33 APIs 31.5 Zuora 80 APIs 30.1 Atomic 7 APIs 28.8 Niteshift 28.7 Chia 1 API 28.2
Emerging 41 Early or largely undocumented
Tin Can 27.9 Kodem 1 API 27.6 Instawork 1 API 27.3 StackBlitz 2 APIs 26.8 Apiiro 26.2 Xapo 25.9 Cresta 25.5 Wealthsimple 25.4 Abnormal 1 API 25.1 JubileeTV 23.8 Bretton AI 23.7 Resolve AI 23.2 Pepper 22.0 Domo 1 API 21.3 Obsidian Security 1 API 20.5 SuperMe 1 API 20.3 Magical 19.7 Optic 1 API 19.7 Adept 5 APIs 19.3 7AI 18.7 Fermat 18.3 Gretel 2 APIs 17.8 Notable 17.3 Ava 15.8 Nauto 15.6 Frec 15.2 TruEra 1 API 14.9 Fable 14.3 Red Hat 2 APIs 14.0 Amplify MD 13.8 Included Health 13.8 Altara 13.7 Cogent 13.7 Bedrock Data 13.6 Quip 3 APIs 13.3 Responsiv 13.2 Axiamatic 13.1 Highstock 13.1 Pine 13.1 Paramark 13.0 Solv 3 APIs 13.0
Minimal 37 Almost no public developer surface
OpenDNS 12.7 Wiz 1 API 12.7 Lapse 12.4 Aspora 12.2 Cleo 12.2 Novi 11.9 Sonder 11.9 Crew 11.8 Gem 11.6 Oportun 11.3 Entrepreneur First 11.0 AI Fund 10.5 Lyra 9.8 Atomic AI 9.2 Netic 9.1 AVI Networks 8.7 Tenzai 8.6 Cylake 8.4 Mandolin 8.3 Inventa 7.5 Tydo 7.5 Houseparty 6.3 Coffee 1 API 5.7 Aurora 5.4 Lithos 5.4 Nuro 5.4 Awake 5.0 Dazz 5.0 Innovium 5.0 Multi 5.0 musical.ly 5.0 Neeva 5.0 Portals 5.0 Sqreen 5.0 TellApart 5.0 Rockset 4.1 Arista 3.7

Properties

Portfolio

Where the firm publishes its investments

Portfolio
Portfolio
 Portfolio
Portfolio
 InvestmentThesis
InvestmentThesis

Team

Partners and investing staff

Team
Team
 Team
Team

Content

Blog, podcast, newsletter, and research

Blog
Blog
 News
News
 Podcast
Podcast

Firm

The firm itself

Website
Website
 Jobs
Jobs
 Crunchbase
Crunchbase
 LinkedIn
LinkedIn
 Twitter
Twitter

Source (apis.yml)

apis.yml Raw ↑ 
aid: greylock.com
name: Greylock Partners
description: Greylock Partners is one of the oldest and best-known venture capital firms in the United
  States, founded in 1965 in Cambridge, Massachusetts and headquartered in Menlo Park, California. Greylock
  is an early-stage-focused firm that partners with founders at the pre-seed, seed, and Series A stages,
  deploying the majority of its capital as a first check and continuing to back companies through Series
  B and beyond. The firm reports over $3.5 billion in committed capital under management. Greylock invests
  across enterprise and consumer software with an explicitly AI-first thesis, concentrating on applications,
  infrastructure, cybersecurity, fintech, consumer, and deep tech. Its portfolio and alumni network includes
  category-defining companies such as LinkedIn, Facebook, Airbnb, Workday, Palo Alto Networks, Cloudera,
  Coinbase, Figma, Discord, and Anthropic. Partners include Reid Hoffman, Asheem Chandna, Saam Motamedi,
  Jerry Chen, David Sze, and Mike Duboe.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://cdn.sanity.io/images/uz672vkd/production/3289769f5f58045123dd9132f64e768dda4e74aa-168x32.svg
x-type: venture-capital
x-category: Venture Capital
tags:
- Venture Capital
- Seed
- Series A
- Artificial Intelligence
- Enterprise Software
- Cybersecurity
- Fintech
- Infrastructure
- Consumer
- Silicon Valley
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.20'
apis: []
common:
- type: Website
  url: https://greylock.com/
- type: Portfolio
  url: https://greylock.com/portfolio/
- type: Portfolio
  url: portfolio/greylock-portfolio.yml
- type: Team
  url: https://greylock.com/team/
- type: Team
  url: team/greylock-team.yml
- type: InvestmentThesis
  url: https://greylock.com/firm/
- type: Blog
  url: https://greylock.com/blog/
- type: News
  url: https://greylock.com/edge/
- type: Podcast
  url: https://greylock.com/greymatter/
- type: Jobs
  url: https://greylock.com/jobs/
- type: Crunchbase
  url: https://www.crunchbase.com/organization/greylock
- type: LinkedIn
  url: https://www.linkedin.com/company/greylock-partners/
- type: Twitter
  url: https://x.com/GreylockVC
- type: Features
  data:
  - 'Stage: Pre-seed, Seed, Series A (first-check, early-stage focus; follows on through Series B+)'
  - 'Sectors: applications, infrastructure, cybersecurity, fintech, consumer, deep tech'
  - 'Geography: United States (Silicon Valley / Menlo Park)'
  - 'AUM: over $3.5B committed capital (self-reported)'
  - 'Founded: 1965 (Cambridge, MA)'
  - 'HQ: Menlo Park, CA'
  - 'Thesis: AI-first; backs category-defining teams'
  - 'Portfolio: 158 companies profiled from greylock.com/portfolio'
  sources:
  - https://greylock.com/firm/
  - https://en.wikipedia.org/wiki/Greylock_Partners
  - https://www.crunchbase.com/organization/greylock
  updated: '2026-07-17'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com
- FN: APIs.json
  url: http://apisjson.org
- FN: Greylock Partners
  url: https://greylock.com/