Greg Castle
Managing Partner and Founder @ Anorak Ventures
San Francisco, United States
Greg Castle is a seed investor at Anorak Ventures in San Francisco focused on Software and Augmented Reality. An entrepreneur and corporate marketer turned VC, with an interest in early-stage, disruptive technology. Over 100 seed stage investments including Oculus, Flexport, Rec Room, Anduril, Flock Safety, OssoVR and Mux.
- Total investments:
- 92
- Last investment:
- Lead investor:
- 2%
Last updated:
For AI agents: llms.txt
Industries Greg Castle invests in
Stages Greg Castle invests in
Countries Greg Castle invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $500k–$5.8M
- Series A
- $7.3M–$50M
- Venture - Series Unknown
- $500k–$13M
Investment Focus
Industry
- Software 23 (25%)
- Augmented Reality 15 (16%)
- Virtual Reality 13 (14%)
- Artificial Intelligence 12 (13%)
- 3D Technology 9 (10%)
Stage
- Seed 48 (52%)
- Series A 8 (9%)
- Venture - Series Unknown 7 (8%)
- Pre-Seed 6 (7%)
- Funding Round 4 (4%)
Country
- United States 55 (60%)
- Ghana 1 (1%)
- Kenya 1 (1%)
- Canada 1 (1%)
- France 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Soctera is developing Aluminium Nitride based power transistor with the ability to produce MW-frequency signals. | $4M / Seed / Aug 11, 2026 | ||
| Fondo helps with bookkeeping and beyond so founders can grow their businesses with more resources. The company strives to help founders build an enduring business by taking work off of their plate, providing them with the data needed to make key business decisions, and making sure the startup is in compliance at the state and federal level. | $7M / Seed / Nov 22, 2024 | ||
| Airfold is designed to easily ingest your batch and streaming data, join/aggregate it with SQL, and publish the results as APIs for other teams to access it. Without worrying about managing infrastructure or complex integrations. | $4M / Seed / Aug 01, 2024 | ||
| JigSpace develops an AI-powered 3D visualization and augmented reality platform that enables businesses to create and share interactive “Jigs” for explaining complex products and processes. The company provides tools for spatial presentations, product demonstrations, training, and sales enablement, helping organizations improve understanding,engagement, and communication. | $13M / Venture - Series Unknown / Jul 12, 2024 | ||
| ZeroMark is a defense product company building technology to ensure safety and precision when using kinetic and non lethal weapons. | $7M / Seed / May 24, 2024 | ||
| Fondo helps with bookkeeping and beyond so founders can grow their businesses with more resources. The company strives to help founders build an enduring business by taking work off of their plate, providing them with the data needed to make key business decisions, and making sure the startup is in compliance at the state and federal level. | $1.2M / Pre-Seed / Feb 13, 2023 | ||
| Framework is an electronics company that repairs lightweight laptops and consumer electronics products. The company is building people and planet-friendly consumer electronics products that are designed to be easy to upgrade, customize and repair. Their first product is the Framework Laptop, which has received an incredible response from the pressand consumers (including recently landing on the cover of TIME's Best Inventions of 2021). | $18M / Series A / Feb 01, 2022 | ||
| Cquence is fast, accessible video creation and collaboration for creators. | Seed / Jul 15, 2021 | ||
| Osso VR is a surgical training and assessment platform that uses advanced virtual reality to train and assess medical personnel. Their product offers realistic hand-based interactions in an immersive training environment containing cutting-edge procedures and devices. | $27M / Series B / Jul 07, 2021 | ||
| Framework is an electronics company that repairs lightweight laptops and consumer electronics products. The company is building people and planet-friendly consumer electronics products that are designed to be easy to upgrade, customize and repair. Their first product is the Framework Laptop, which has received an incredible response from the pressand consumers (including recently landing on the cover of TIME's Best Inventions of 2021). | $9M / Seed / Jun 17, 2021 | ||
| See all 92 investments → | |||
Co-Investors
About Anorak Ventures
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.
Anorak Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
|
Greg Castle
Managing Partner and Founder
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FAQ
What does Greg Castle invest in?
Greg Castle invests primarily in Software, Augmented Reality and Virtual Reality startups, most often at Seed and Series A stage. Most of the 92 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Greg Castle invest in?
Greg Castle typically joins rounds of $500k–$5.8M at Seed, $7.3M–$50M at Series A and $500k–$13M at Venture - Series Unknown. These are whole funding-round sizes, not Greg Castle's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Greg Castle took part in.
How do I contact Greg Castle?
Public channels for Greg Castle 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.
When did Greg Castle last invest?
The most recent investment recorded for Greg Castle closed in Aug 2026. Shizune tracks 92 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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