Brian Cartmell
Director @ Cartmell Holdings Limited
Brian Cartmell is a seed investor at Cartmell Holdings Limited focused on Bitcoin and FinTech. Brian Cartmell has over 20 years of experience in information technology systems, working as a programmer to CEO of eNIC, the second largest domain registry company in the United States before it was acquired by Verisign in 2001. Cartmell was invited to testify before the United States senate in regards to Internet Governance by ICANN, is theinventor of five issued U.S. patents, led the successful battle against Hormel for the right to include the word "Spam" in trademarks that relate to email services, and is a major shareholder and board member of companies ranging from identity authentication services to all-natural zero calorie sodas.
- Total investments:
- 6
- Last investment:
- Lead investor:
- 17%
Last updated:
For AI agents: llms.txt
Industries Brian Cartmell invests in
Stages Brian Cartmell invests in
Countries Brian Cartmell invests in
Round sizes
Round size
- Seed
- $400k–$4.5M
- Pre-Seed
- $100k–$11M
Investment Focus
Industry
- Bitcoin 2 (33%)
- FinTech 2 (33%)
- Aerospace 2 (33%)
- Art 1 (17%)
- B2B 1 (17%)
Stage
- Seed 3 (50%)
- Pre-Seed 3 (50%)
Country
- United States 3 (50%)
- New Zealand 2 (33%)
- Canada 1 (17%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Outlier Space
|
Outlier Space is an aerospace startup that builds a scalable, uncrewed, and reusable satellite platform designed to unlock access to microgravity. The company provides breakthrough infrastructure to safely return orbital payloads back to Earth. This technology allows sectors like pharmaceuticals, biotechnology, and advanced materials to manufactureand research products beyond Earth's atmospheric limits. | $10.5M / Pre-Seed / Jul 29, 2026 | |
Seagate Space
|
Seagate Space is an aerospace company that provides offshore rocket launch solutions for the space industry. | $1.5M / Pre-Seed / Jan 27, 2026 | |
Approve.com
|
Simple, Customizable Procurement Processes For Your Organization. | $4.5M / Seed / Aug 06, 2020 | |
Vimba
|
Vimba, they provide a simple way to buy and save Bitcoin and Ethereum on a weekly basis. | $400K / Seed / Nov 08, 2017 | |
Binded
|
Binded lets creators claim their copyrights on the blockchain and protect them for free. A creator uploads their art or photos to Binded via our website or integrations with creative tools like Instagram. We create a timestamp in the Bitcoin blockchain and give a certificate as proof. We are developing technology to create uniquefingerprints for all copyrighted works and store them on the blockchain. Like Youtube’s Content ID system for the entire internet. For every copyright claimed, we scan the web and show matches for possible copyright infringement. In 5 years we hope to be the main way copyrights are registered and utilized. | $547K / Seed / Mar 15, 2016 | |
Trustatom
|
Trustatom provides privacy-respecting identity and smart contract solutions. It offers identity and contracts API services; mobile crypto-multifactor identity and authorization application for Trustatom ID; and CredyCo, an application that helps investors and companies to establish continuous credibility during the due diligence and postinvestment. Yurii Rashkovskii founded Trustatom in 2014. It has its headquarters in Vancouver in Canada. | $100K / Pre-Seed / Jan 20, 2015 |
Co-Investors
About Cartmell Holdings Limited
Cartmell Holdings Limited Contacts
| Name | Phone | Socials | |
|---|---|---|---|
|
Brian Cartmell
Director
|
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4 more contacts available
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FAQ
What does Brian Cartmell invest in?
Brian Cartmell invests primarily in Bitcoin, FinTech and Aerospace startups, most often at Seed and Pre-Seed stage. Most of the 6 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 Brian Cartmell's check size?
Brian Cartmell typically joins rounds of $400k–$4.5M at Seed and $100k–$11M at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Brian Cartmell participates in.
When did Brian Cartmell last invest?
The most recent investment recorded for Brian Cartmell closed in Jul 2026. Shizune tracks 6 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 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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