# John O'Brien

> John O'Brien is a seed investor at Sematron backing Financial Services and Financial Exchanges. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Sematron](https://shizune.co/investors/profile/sematron)
- Total investments: 1
- Last investment: Oct 2020
- Lead investor: 0%
- Last updated: Aug 2026

John O'Brien is a seed investor at Sematron focused on Financial Services and Financial Exchanges. John O'Brien

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Financial Services | 1 | 100% |
| Financial Exchanges | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Stablehouse | Stablehouse is a payment and FX exchange platform for stablecoins. | $2.2M | Seed | Oct 29, 2020 |  |

1 of 1 investments shown.

## Co-investors
- [Dragonfly](https://shizune.co/investors/profile/dragonfly-capital-partners-eed4) — VC Fund, 1 deal together
- [Liberty City Ventures](https://shizune.co/investors/profile/liberty-city-ventures) — VC Fund, 1 deal together
- [Lukka](https://shizune.co/investors/profile/libra) — VC Fund, 1 deal together
- [XBTO Group](https://shizune.co/investors/profile/xbto-group) — VC Fund, 1 deal together

## About Sematron

VC Fund



1 contacts available at Sematron.

| Name | Title | Profile |
| --- | --- | --- |
| John O'Brien | Managing Director/ Founder & Owner | https://shizune.co/investors/profile/john-o-brien-30b2 |

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## Featured in investor lists
- [All Investors in Bermuda](https://shizune.co/investors/investors-bermuda)
- [FinTech Investors in Bermuda](https://shizune.co/investors/fintech-investors-bermuda)

## FAQ

### What does John O'Brien invest in?

John O'Brien invests primarily in Financial Services and Financial Exchanges startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Bermuda. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did John O'Brien last invest?

The most recent investment recorded for John O'Brien closed in Oct 2020. Shizune tracks 1 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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