Mapping the Impact of International Founders on UK High-Growth Companies

The British growth story has always been entwined with immigration. From the industrial revolution to the fintech boom, people who arrived from elsewhere have contributed to building some of the country’s most consequential businesses – and the high-growth ecosystem of today is no exception.

Of the UK’s top 100 fastest-growing companies, 54% have a foreign-born founder or co-founder on the board, according to research by The Entrepreneurs Network in association with Beauhurst.

But which founder nations are having the biggest impact on UK companies? Which regions benefit most? And what are international founders actually building? Using Beauhurst data on more than 7.64k international founders behind over 5.99k high-growth companies, this article takes stock of the international founder ecosystem in the UK.

The impact of international founders on UK growth

The economic footprint of these companies is substantial. Together, the cohort generates a combined turnover of £51.4b and contributes £16.3b in gross value added (GVA) to the UK economy. The companies carry a combined valuation of £139b.

At the company level, that works out at an average turnover of £40.9m and an average GVA of £13.1m, with averages calculated across the companies with each datapoint available.

Where international founders set up

Nearly half of all high-growth companies with international founders are based in London – and international founders are more concentrated there than high-growth companies as a whole.

Concentration compares each region’s share of the international-founder cohort against its share of all 72.4k UK high-growth companies. A figure above 1x means international founders are over-represented there relative to the high-growth baseline; below 1x means under-represented.

London’s 63% share is striking, and the concentration index shows it’s not just a function of London being a big market generally: London accounts for 31% of all UK high-growth companies, but 63% of those with international founders – a 2.05x over-representation. This likely reflects London’s concentration of investors, talent, and international transport links.

Northern Ireland is the only other region to show any over-representation, and by some distance. It holds just 2.0% of all UK high-growth companies but 3.85% of those with international founders. Its 1.93x concentration is close behind London’s, making Northern Ireland one of the standout figures in this research.

Everywhere else, international founders are under-represented relative to the high-growth baseline – including Scotland, which sits at 0.66x despite the strength of its Edinburgh and Glasgow ecosystems.

Stages of growth

International founders are overwhelmingly behind early-stage companies. More than seven in ten of the cohort sit at seed or venture stage.

At 71.5% seed and venture combined, this points to a strong pipeline of newer businesses being founded by people from outside the UK. However, just 3.33% of the cohort has exited so far.

Top nations for international founders

When it comes to analysing founders of UK companies by nation, a few patterns stand out. Irish founders lead the way with 887, ahead of the United States (656) and Italy, which is almost tied with the US for second place at 655.

The Anglosphere remains a significant presence in the top 10: Ireland, the United States, Australia, and Canada together account for 2.15k founders. Ireland’s leading position is particularly notable given its population of just over 5 million. Proximity, the Common Travel Area, and deep historical ties all play a part in this story.

European founders are also a major force. Italy, France, Germany, the Netherlands, Spain, and Poland all feature in the top 11, and EU nations in the top 20 – including Ireland – collectively account for 3,944 founders. This is more than half the entire international-founder cohort. Despite predictions that Brexit would cut off European talent, the data shows continental founders are still building at scale in the UK.

India and China are the leading Asian nations, with 369 and 132 founders respectively.

The industries international founders are building in

At Beauhurst, we classify each company against multiple industries and buzzwords, so the figures below count classifications rather than companies. The table combines the two rankings and sorts by the number of companies carrying each classification.

The top three tell a clear story. Digital and technologies leads with 3,788 companies, followed by application software (3,304) and SaaS (1,631). International founders are overwhelmingly building in software and services – the sectors where a strong idea and a laptop scale far more easily than physical infrastructure. These industries are also where the UK’s talent and capital markets are deepest.

The bottom line

Behind 5.99k of the UK’s high-growth companies sit 7.64k international founders – businesses that together turn over £51.4b and contribute £16.3b in GVA to the UK economy.

International founders are concentrated in London and, to a lesser extent, Northern Ireland. They’re overwhelmingly early-stage, with seven out of ten companies at Seed or Venture, and they’re building in software and services rather than manufacturing or physical infrastructure.

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