Investor profile
Isomer Capital
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Isomer Capital is a London-based, independent private investment firm focused exclusively on European venture capital. Its core strategy is a hybrid fund-of-funds model: it makes primary LP commitments of €5m–10m into 20 or so early-stage European VC funds per flagship fund cycle, with smaller €1.5m cheques reserved for micro-VCs, gaining diversified exposure to Europe's best emerging managers (Seedcamp, Hoxton Ventures, Entrepreneur First, OpenOcean, OTB Ventures, and others) and their underlying portfolios of 2,000+ companies and 29+ unicorns. Layered on top of the fund-of-funds are direct co-investments into breakout portfolio companies and, since 2024, a dedicated £100m secondaries fund (Isomer Secondaries I) that buys LP stakes in VC funds and direct company stakes across Europe, writing €1m–10m cheques. Isomer positions itself as a 'value-add' LP—actively supporting fund managers on strategy, portfolio construction, and fundraising—and as a gateway for non-European institutional investors (endowments, pensions, family offices, corporates) seeking efficient access to European technology innovation.
Notable quotes
“The need for liquidity has never been higher, and solutions are few and far between. So it's a great time to buy for those with access, analytics and capital to deploy.”
“I don't worry about the bubble bursting… the companies that are going to create the highest returns are already financially independent of investors.”
“There are some headwinds in the market… and investors are definitely asking more questions.”
Recent investments
| Company | Round | Size | Date |
|---|---|---|---|
| Encord | Series C | $60m | 2026-02-26 |
| Knowunity | Series B | $30m | 2025-06-13 |
| Automata Technologies | Series B | $40m | 2023-01-01 |
| Refurbed | Series C | $57m | 2023-01-01 |
| Cowboy | Series C | — | 2022-01-01 |
| Darktrace | Series E | — | 2021-01-01 |
| Tractable | Series D | — | 2021-01-01 |
| Zenjob | Series B | — | 2021-01-01 |
| Curve | Series B | — | 2020-01-01 |
| Acast | Series C | — | 2019-01-01 |
Frequent co-investors
| VC firm | Deals together |
|---|---|
| Seedcamp | 5 |
| Entrepreneur First | 4 |
| OTB Ventures | 3 |
| Hoxton Ventures | 3 |
| OpenOcean | 2 |
| C4 Ventures | 1 |
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