# Greylock

> Greylock is a VC fund backing Software and Information Technology. See 842 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Menlo Park, United States
- Total investments: 842
- Last investment: Aug 2026
- Lead investor: 33%
- Fund size: $1B
- Last fund: Oct 2023
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/company/18077
- X (Twitter): http://twitter.com/greylockvc
- Website: http://www.greylock.com
- Facebook: http://www.facebook.com/Greylock

Greylock is a VC fund in Menlo Park focused on Software and Information Technology. Greylock Partners invests in entrepreneurs that focus on consumer and enterprise software companies. The firm invests in companies that define new markets, including Airbnb, AppDynamics, Apptio, Arista Networks (NYSE: ANET), Cloudera, Docker, Dropbox, Facebook (Nasdaq: FB), LinkedIn (NYSE: LNKD), Medium, Nextdoor, Palo Alto Networks (NYSE: PANW),Pandora (NYSE: P), Pure Storage, and Workday (NYSE: WDAY).It was founded in 1965 and headquartered in Menlo Park, California.

## Contacts

5 contacts available for Greylock. Shizune tracks 28 team members at Greylock. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/greylock?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1.2M–$16M |
| Series A | $5.1M–$42M |
| Series B | $11M–$65M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 147 | 17% |
| Information Technology | 67 | 8% |
| Enterprise Software | 53 | 6% |
| Internet | 50 | 6% |
| Mobile | 45 | 5% |

310 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 158 | 19% |
| Series B | 152 | 18% |
| Seed | 129 | 15% |
| Series C | 85 | 10% |
| Series D | 58 | 7% |

16 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 357 | 42% |
| United Kingdom | 10 | 1% |
| Israel | 9 | 1% |
| Canada | 5 | 1% |
| Brazil | 2 | 0% |

13 countries tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Bill Kaiser | Partner | 7 | https://shizune.co/investors/profile/bill-kaiser |
| David Wadhwani | Venture Partner | 7 | https://shizune.co/investors/profile/david-wadhwani |
| Howard Cox | Special Limited Partner | 5 | https://shizune.co/investors/profile/howard-cox |
| Jason Risch | Investor | 16 | https://shizune.co/investors/profile/jason-risch |
| Mike Duboe | General Partner | 32 | https://shizune.co/investors/profile/mike-duboe |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Obsidian Security | Led by former founding team members of Cylance and Carbon Black, Obsidian Security is a Southern California technology company living at the intersection of cybersecurity, artificial intelligence, and hybrid-cloud environments. Backed by Greylock Partners, Obsidian Security is based in Newport Beach, CA. | $85M | Series D | Aug 04, 2026 |  |
| Obsidian Security | Led by former founding team members of Cylance and Carbon Black, Obsidian Security is a Southern California technology company living at the intersection of cybersecurity, artificial intelligence, and hybrid-cloud environments. Backed by Greylock Partners, Obsidian Security is based in Newport Beach, CA. | $85M | Series D | Aug 04, 2026 |  |
| Oak | Oak is an AI-native cybersecurity startup that helps enterprises secure and manage identities for human users, non-human machines, and AI agents. | $60M | Seed | Jul 15, 2026 |  |
| Baseten | Baseten provides a platform for training, deploying, and serving artificial intelligence models in production environments. It supports open-source, fine-tuned, and custom models, converting them into API endpoints with capabilities such as autoscaling, observability, and optimized model serving. The platform manages infrastructure componentsincluding containerization, GPU scheduling across multiple cloud providers, and performance optimizations to support large-scale inference workloads. Baseten also offers preconfigured model APIs and deployment options that can run either on its managed cloud service or within a customer's own environment. Its tools are designed to help developers build, manage, and scale AI applications while maintaining flexibility in how models are hosted and executed. | $1.5B | Series F | Jun 22, 2026 |  |
| Niteshift | Niteshift is a software development company that builds the full-stack cloud platform for coding agents. enabling background coding agents that can simulate and close loops on complex tasks end-to-end. | $7M | Seed | Jun 10, 2026 |  |
| Opal Security | Opal Security is a modern, data-centric identity security platform. Opal Security helps organizations reduce access sprawl, manage identity attack surfaces, and enforce policies that are secure by default. Opal Security is based in San Francisco and New York. For more information, please visit www.opal.dev or reach us at hello@opal.dev. | $23M | Venture - Series Unknown | Jun 04, 2026 |  |
| Opal Security | Opal Security is a modern, data-centric identity security platform. Opal Security helps organizations reduce access sprawl, manage identity attack surfaces, and enforce policies that are secure by default. Opal Security is based in San Francisco and New York. For more information, please visit www.opal.dev or reach us at hello@opal.dev. | $23M | Venture - Series Unknown | Jun 04, 2026 |  |
| Vori | Vori is the only modern B2B operating system for the grocery industry. Vori's platform unlocks the data required for grocery retailers, brands, and distributors to effectively address food access and food waste while future-proofing their business operations with advanced technology. Their technology seamlessly connects data across the foodsupply chain, making supply chain management easy for retailers and their suppliers.Vori was founded in 2019 and launched its first product in March 2020, at the height of the COVID-19 Pandemic. Vori is backed by investors who share their vision of a future where food moves freely. Their investors include Greylock, Y Combinator, Village Global, South Park Commons, grocery industry experts from Safeway/Albertsons, co-founders of Instacart, DoorDash, and Twitch, and strategic Vori customers. Learn more at vori.com. | $22M | Series B | May 06, 2026 |  |
| Altara | Altara is a San Francisco–based startup building a scientific-intelligence AI platform that analyzes complex physical-science and engineering data (batteries, chips, materials, etc.) to speed up R&D and failure analysis. | $7M | Seed | May 05, 2026 |  |
| Censys | Censys provides an internet intelligence platform for threat hunting and exposure management. The company's platform gives organizations a comprehensive real-time view of global networks and devices to help businesses discover the devices, networks, and infrastructure on the internet. | $40M | Series D | Mar 31, 2026 |  |

10 of 842 investments shown.

## Co-investors
- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund, 83 deals together
- [IVP](https://shizune.co/investors/profile/institutional-venture-partners) — VC Fund, 69 deals together
- [Lightspeed Venture Partners](https://shizune.co/investors/profile/lightspeed-venture-partners) — VC Fund, 67 deals together
- [SV Angel](https://shizune.co/investors/profile/sv-angel) — VC Fund, 60 deals together
- [Index Ventures](https://shizune.co/investors/profile/index-ventures) — VC Fund, 50 deals together
- [Andreessen Horowitz](https://shizune.co/investors/profile/andreessen-horowitz) — VC Fund, 48 deals together

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## FAQ

### What does Greylock invest in?

Greylock invests primarily in Software, Information Technology and Enterprise Software startups, most often at Series A and Series B stage. Most of the 842 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Greylock's check size?

Greylock typically joins rounds of $1.2M–$16M at Seed, $5.1M–$42M at Series A and $11M–$65M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Greylock participates in.

### How do I contact Greylock?

Public channels for Greylock include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Greylock?

The team at Greylock includes Bill Kaiser (Partner), David Wadhwani (Venture Partner) and Howard Cox (Special Limited Partner), among 28 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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