# Hannah Leach

> Hannah Leach is a pre-seed investor at Houghton Street Ventures backing Water. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Houghton Street Ventures](https://shizune.co/investors/profile/houghton-street-ventures-7e40)
- Location: London, United Kingdom
- Total investments: 2
- Last investment: Mar 2026
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/hannahleach

Hannah Leach is a pre-seed investor at Houghton Street Ventures in London focused on Water and Water Purification. Partner at Antler.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Water | 1 | 50% |
| Water Purification | 1 | 50% |
| Environmental Engineering | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Lir Labs | At Lir Labs we are developing novel solutions for optmizing wastewater treatment. Our real-time automated microscopy sensors are backed by custom deep learning models, equipped to extract patterns based on the development of microscopic organisms and particles in water. | $280.8K | Pre-Seed | Mar 04, 2026 |  |
| Occam Industries | Occam Industries develops advanced battlefield technologies and systems for Western militaries and defense partners. | $3.6M | Pre-Seed | Feb 11, 2026 |  |

2 of 2 investments shown.

## Co-investors
- [Czechoslovak Group](https://shizune.co/investors/profile/czechoslovak-group) — VC Fund, 1 deal together
- [Freedom Fund VC](https://shizune.co/investors/profile/freedom-fund-vc) — VC Fund, 1 deal together
- [Presto Ventures](https://shizune.co/investors/profile/presto-ventures) — VC Fund, 1 deal together
- [T|Y|R.vc](https://shizune.co/investors/profile/t-y-r-vc) — VC Fund, 1 deal together

## About Houghton Street Ventures

VC Fund · Holborn, United Kingdom

Houghton Street Ventures is a venture capital firm that invests in the best of the alumni, students, and faculty of LSE.

3 contacts available at Houghton Street Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Hannah Leach | Partner | https://shizune.co/investors/profile/hannah-leach |
| Veronika Kapustina | Founder & Partner | https://shizune.co/investors/profile/veronika-kapustina |
| Adam French | Partner | https://shizune.co/investors/profile/adam-french-2 |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund
- [Everywhere Ventures](https://shizune.co/investors/profile/everywhere-ventures) — VC Fund

## FAQ

### What does Hannah Leach invest in?

Hannah Leach invests primarily in Water, Water Purification and Environmental Engineering startups, most often at Pre-Seed stage. Most of the 2 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Hannah Leach last invest?

The most recent investment recorded for Hannah Leach closed in Mar 2026. Shizune tracks 2 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co