# George Burke

> George Burke is a initial coin offering investor at Portal to Bitcoin backing Blockchain. See 90 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Portal to Bitcoin](https://shizune.co/investors/profile/tides)
- Location: San Francisco, United States
- Total investments: 90
- Last investment: Aug 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/georgeburke/
- X (Twitter): http://twitter.com/geoburke
- Website: https://x.com/geoburke
- Facebook: http://facebook.com/geoburke

George Burke is a initial coin offering investor at Portal to Bitcoin in San Francisco focused on Blockchain and Cryptocurrency. Passionate problem solver specializing in blockchain, cryptocurrency, health & wellness tech, biohacking.Product manager, marketer, & executive with a proven ability to recognize and capitalize on commercial opportunities. Conceived, launched and successfully exited three companies. 13+ years of experience in consumer product development& growth marketing.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $500k–$10M |
| Initial Coin Offering | $5.5M–$53M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Blockchain | 40 | 44% |
| Cryptocurrency | 20 | 22% |
| Software | 17 | 19% |
| Internet | 16 | 18% |
| Information Technology | 16 | 18% |

100 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Initial Coin Offering | 32 | 36% |
| Seed | 22 | 24% |
| Funding Round | 6 | 7% |
| Angel | 2 | 2% |
| Pre-Seed | 2 | 2% |

11 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 36 | 40% |
| United Kingdom | 5 | 6% |
| Switzerland | 4 | 4% |
| Canada | 2 | 2% |
| Australia | 2 | 2% |

17 countries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Movement Labs | Movement Labs is a modular framework platform that builds and deploys move-based blockchains and applications in distributed settings. Its platform offers a composable and horizontally scalable network that provides unparalleled smart contract security and asset portability to help users solve the cold start problem with unprecedentedinteroperability. | $100M | Series B | Aug 08, 2025 |  |
| Hemi Labs | Hemi (https://hemi.xyz) is a modular protocol that integrates Bitcoin and Ethereum to amplify and extend the core capabilities of the two leading blockchain networks. This offers a novel perspective on blockchain interoperability and scaling by approaching Bitcoin and Ethereum as components of a single supernetwork. The result providessecurity that exceeds that of Bitcoin (“superfinality”) and new levels of blockchain programmability, portability, and potential. Hemi was co-founded by Jeff Garzik (former Bitcoin core developer) and Max Sanchez (inventor of the Proof-of-Proof consensus protocol), and is surrounded by a team of renowned blockchain engineers, strategic partners and investors. | $15M | Seed | Sep 18, 2024 |  |
| Sapien | Sapien, established in 2023, is a data labeling company dedicated to enhancing AI model training through scalable, high-quality data labeling services. By combining advanced technology, blockchain rewards, human feedback, and domain expertise, Sapien enables AI model development across multiple industries, including healthcare, finance, andeducation technology, among many others. The company's approach to data labeling through gamification and positive reinforcement ensures superior data quality output and high retention rates from labelers, and cost-effectiveness for customers. Sapien's commitment to quality, scalability, and customer focus, along with its mission to foster ethical and impactful AI advancements, sets it apart as a leading trusted partner for businesses developing high-performance AI models. | $5M | Seed | Apr 10, 2024 |  |
| VELAR | VELAR is a Multi-Feature DeFi App with Bitcoin Finality. | $3.5M | Seed | Feb 01, 2024 |  |
| bitSmiley | BitSmiley offers comprehensive Bitcoin DeFi solutions to bridge the stablecoin and lending infrastructure gaps within the Bitcoin ecosystem. Its main product is an over-collateralized stablecoin based on Bitcoin. Users can utilize Bitcoin as collateral for BitSmileyDAO and Mint BitUSD. |  | Initial Coin Offering | Jan 28, 2024 |  |
| Tune.FM | Tune.FM is a web3 decentralized music streaming platform & music NFT marketplace. | $20M | Venture - Series Unknown | Jan 10, 2024 |  |
| Movement Labs | Movement Labs is a modular framework platform that builds and deploys move-based blockchains and applications in distributed settings. Its platform offers a composable and horizontally scalable network that provides unparalleled smart contract security and asset portability to help users solve the cold start problem with unprecedentedinteroperability. |  | Seed | Jan 10, 2024 |  |
| Medici Bank | Medici Bank is a financial service based company. |  | Convertible Note | Jan 01, 2024 |  |
| Ignite Tournaments | esports, mobile games, streaming, crypto, blockchain, and tournament organization |  | Angel | Jan 01, 2024 |  |
| BabylonChain | Babylon is a VC-backed blockchain project founded by Claude. E. Shannon Award recipient, Professor David Tse from Stanford University. The project’s mission is to bring Bitcoin’s unparalleled security to all PoS blockchains in the world. To this end, we are building, as the bridge between Bitcoin and the PoS world, a new public Cosmos-based PoSblockchain called Babylon with a native token. | $18M | Series A | Dec 07, 2023 |  |

10 of 90 investments shown.

## Co-investors
- [Fabric Ventures](https://shizune.co/investors/profile/fabric-ventures) — VC Fund, 7 deals together
- [Fundamental Labs](https://shizune.co/investors/profile/fundamental-labs) — VC Fund, 5 deals together
- [Infinite Capital](https://shizune.co/investors/profile/infinite-capital-b86b) — VC Fund, 5 deals together
- [Artichoke Capital](https://shizune.co/investors/profile/artichoke-capital) — VC Fund, 4 deals together
- [Boost VC](https://shizune.co/investors/profile/boostfunder) — VC Fund, 4 deals together
- [Eterna Capital](https://shizune.co/investors/profile/eterna-capital) — VC Fund, 4 deals together

## About Portal to Bitcoin

VC Fund · San Francisco, United States

Portal is a financial services company that trades crypto anywhere without putting coins at risk, all from within a controllable wallet. Founded in 2018, Portal is headquartered in San Francisco, California.

5 contacts available at Portal to Bitcoin.

| Name | Title | Profile |
| --- | --- | --- |
| Eric Martindale | CEO | https://shizune.co/investors/profile/eric-martindale |
| George Burke | COO | https://shizune.co/investors/profile/george-burke |
| Adis Hasanic | Engineering, UX | https://shizune.co/investors/profile/adis-hasanic |
| Farid Azizov | Engineering | https://shizune.co/investors/profile/farid-azizov |
| Jack Mills | COO | https://shizune.co/investors/profile/jack-mills-ee8c |

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## FAQ

### What does George Burke invest in?

George Burke invests primarily in Blockchain, Cryptocurrency and Software startups, most often at Initial Coin Offering and Seed stage. Most of the 90 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 George Burke's check size?

George Burke typically joins rounds of $500k–$10M at Seed and $5.5M–$53M at Initial Coin Offering. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds George Burke participates in.

### When did George Burke last invest?

The most recent investment recorded for George Burke closed in Aug 2025. Shizune tracks 90 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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