The Fastest-Growing Companies in the UK | 2026

Words Lily Ruaah

The Fastest-Growing Companies in the UK | 2026

We recently launched a new series highlighting the fastest-growing companies across every nation in the UK. With 4.97m active companies generating over £38.6m in average turnover and employing more than 43 million people, the UK is one of the world’s most dynamic business hubs.

Each country brings unique strengths — England leading with London’s 1.38m companies, Scotland’s Edinburgh driving nearly 20% of its business base, Cardiff home to almost a third of Wales’s companies, and Belfast anchoring Northern Ireland’s entrepreneurial scene.

From construction and hospitality to trade services and software, the UK’s high-growth landscape reflects both traditional industries and emerging innovation sectors.

Let’s take a closer look.

Each country brings unique strengths — England leading with London’s 1.34m companies, Scotland’s Edinburgh driving nearly 20% of its business base, Cardiff home to almost a third of Wales’s companies, and Belfast anchoring Northern Ireland’s entrepreneurial scene.

From construction and hospitality to trade services and software, the UK’s high-growth landscape reflects both traditional industries and emerging innovation sectors.

Let’s take a closer look.

How we created our lists

To profile the fastest-growing companies in England, Scotland and Wales, we used data from the Beauhurst platform, which was used in conjunction with research from the Sunday Times to create the Sunday Times Hundred. This ranking, published in the Sunday Times in June, ranks the UK’s fastest growing companies by sales growth over a three year period.

However, we used a slightly different method when exploring Northern Ireland’s fastest-growing companies, as there were no Northern Irish companies featured on the 2026 Sunday Times Hundred.

To identify the fastest-growing companies in Northern Ireland, we’ve calculated turnover growth between each company’s two most recent financial statements.

The fastest-growing companies in Scotland

Discover the key insights and trends behind the high-growth economy in Scotland.

Discover Scotland

Mapping the UK’s business landscape

Unsurprisingly, England dominates the landscape with 4.78m companies, representing 98% of the UK total. London alone accounts for nearly a third of the UK’s businesses (1.37m), followed by the South East (651k) and the North West (495k).

Scotland ranks second, with 288k companies — 6% of the UK total. Of these, 53.9k (20%) are headquartered in Edinburgh.
Wales is home to 158k companies (3.3% of the UK total), with Cardiff hosting 43.1k, almost a third of the nation’s total.
Northern Ireland has the smallest share, with 79.0k companies (just 1.6% of the UK total). Of these, 20.8k (26%) are based in Belfast, a proportion just shy of the averages seen across the other nations.

The fastest-growing companies in Wales

Discover the landscape of high-growth companies in Wales. See which companies made the top ten list.

Discover Wales

The UK’s top industries

From our research for this series, it was evident that there is a lot of crossover in the top industries in each of the UK’s nations.

The UKs top ten industries by percentage of companies active

As detailed in this table, property development and construction; restaurants, pubs, cafes and takeaways; and tradespeople and trade services, all made it into the top industries for each nation. And it’s no surprise that there’s quite a lot of overlap in the UK’s top industries.

However, as we saw with England’s top industries, application software makes up a significant proportion of UK companies (4.9%) making it the third biggest industry in the UK.

The fastest-growing companies in Northern Ireland

Explore Northern Ireland’s rich high-growth ecosystem in the third instalment of our series.

Discover Ireland

Foundations and cessations

Since 2023, there’s been a small decline in company foundations in the UK — dropping from 879k in 2023 to 832k in 2025. In 2026, there’s been 529k foundations so far, meaning we’re on the way to having a similar number of foundations this year overall.

We’ve also seen a slight incline in the number of cessations since 2023, going from 666k to 786k in 2025. So far in 2025, there’s been 453k cessations which means we could finish with record level cessations by the end of the year.

Read the articles

The fastest-growing companies in England
The fastest-growing companies in Scotland
The fastest-growing companies in Wales
The fastest-growing companies in Northern Ireland

Find this data for yourself

All the data we used to create these lists is available on our platform.

Find high-growth companies all across the UK, in any subset or niche. Whether you’re interested in the UK’s tech startups or Germany’s innovative manufacturing firms, our platform has everything.

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