# Anorak Ventures

> Anorak Ventures is a VC fund backing Software and Virtual Reality. See 123 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: San Francisco, United States
- Total investments: 123
- Last investment: May 2026
- Lead investor: 2%
- Fund size: $13M
- Last fund: Feb 2017
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/anorak-ventures
- X (Twitter): https://twitter.com/gpcastle12
- Website: http://www.anorak.vc/

Anorak Ventures is a seed-stage venture firm based in San Francisco. We invest early and dilute alongside founders, helping find smart capital for every stage of company growth. To date, 40 investments have been made with $250M raised in follow on funding resulting in an aggregate portfolio market capitalization of $1.8B. ​

## Contacts

5 contacts available for Anorak Ventures. Shizune tracks 1 team members at Anorak Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/anorak-ventures-2?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1.1M–$7.6M |
| Pre-Seed | $495k–$5.3M |
| Series A | $4M–$50M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 27 | 22% |
| Virtual Reality | 17 | 14% |
| Information Technology | 13 | 11% |
| Artificial Intelligence | 13 | 11% |
| Augmented Reality | 11 | 9% |

143 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 67 | 54% |
| Pre-Seed | 11 | 9% |
| Series A | 8 | 7% |
| Funding Round | 8 | 7% |
| Series B | 3 | 2% |

6 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 74 | 60% |
| Ghana | 1 | 1% |
| Kenya | 1 | 1% |
| Canada | 1 | 1% |
| France | 1 | 1% |

9 countries tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Greg Castle | Managing Partner and Founder | 83 | https://shizune.co/investors/profile/greg-castle |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Heaviside Industries | Heaviside Industries is a defense technology company that develops autonomous precision munitions for land, air, and sea systems. | $28M | Series A | May 11, 2026 |  |
| Arinna | Arinna builds ultra-light, flexible high-power solar tech to energize space infrastructure and next-gen power systems. | $4M | Seed | Mar 25, 2026 |  |
| StirlingX | StirlingX is a technology company that provides AI-driven data intelligence and autonomous drone solutions. | $11M | Seed | Nov 27, 2025 |  |
| Sahay AI | Smart Inspection solutions for infrastructure | $1.8M | Pre-Seed | Oct 27, 2025 |  |
| VERUSTRUCT | Verustruct formerly Impact3D. VERUSTRUCT is a tech company that provides 3D construction technology that delivers smart building solutions, sustainable engineering, and advanced construction automation. | $2.4M | Pre-Seed | Sep 24, 2025 |  |
| NOX METALS | Nox Metals is an AI-powered metals supplier empowering modern American manufacturing at scale. | $5.3M | Pre-Seed | Sep 09, 2025 |  |
| Koobz | Koobz is a consumer products company that designs and manufactures 3D-printed footwear products with automated manufacturing processes. | $7.3M | Seed | Jun 24, 2025 |  |
| Schemata | Schemata is a three-dimensional content creation company intended to help the Department of Defense and enterprises. | $5M | Seed | May 13, 2025 |  |
| Vamana AI | Vamana AI is an artificial intelligence platform that is developing next-gen AI-native video infrastructure |  | Seed | May 09, 2025 |  |
| Inversion Semiconductor | Inversion Semiconductor is engaged in the development of an advanced lithography platform for next-generation semiconductor applications. | $500K | Pre-Seed | Mar 12, 2025 |  |

10 of 123 investments shown.

## Co-investors
- [Mana Ventures](https://shizune.co/investors/profile/mana-ventures) — VC Fund, 15 deals together
- [Pathbreaker Ventures](https://shizune.co/investors/profile/pathbreaker-ventures) — VC Fund, 11 deals together
- [SOSV](https://shizune.co/investors/profile/sosv) — VC Fund, 8 deals together
- [Boost VC](https://shizune.co/investors/profile/boostfunder) — VC Fund, 7 deals together
- [Gaingels](https://shizune.co/investors/profile/gaing) — VC Fund, 7 deals together
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 7 deals together

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## FAQ

### What does Anorak Ventures invest in?

Anorak Ventures invests primarily in Software, Virtual Reality and Information Technology startups, most often at Seed and Pre-Seed stage. Most of the 123 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 Anorak Ventures's check size?

Anorak Ventures typically joins rounds of $1.1M–$7.6M at Seed, $495k–$5.3M at Pre-Seed and $4M–$50M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Anorak Ventures participates in.

### How do I contact Anorak Ventures?

Public channels for Anorak Ventures 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 Anorak Ventures?

The team at Anorak Ventures includes Greg Castle (Managing Partner and Founder). 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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