The UK has more semiconductor companies. The harder question is how they scale

The UK's semiconductor sector is larger than the previous official baseline suggested, but the latest figures describe an ecosystem with two very different characteristics: a broad population of small, design-led companies and a large share of economic activity concentrated in relatively few businesses.

The government's 2026 Semiconductor Sector Study identifies 703 companies with semiconductor activity, including 295 dedicated businesses. It estimates that the dedicated group generated £10.6bn in revenue and £7.5bn in gross value added in 2025, directly employing around 16,350 people. Seventy per cent of dedicated companies are UK-headquartered and 92% are SMEs.

Those numbers support the familiar account of UK strength in design, intellectual property, compound semiconductors, photonics and research. They do not, by themselves, show that a company can move smoothly from a funded prototype to repeatable production.

Concentration matters

The study estimates that large companies account for 75% of dedicated-sector revenue and 61% of employment. A company count can therefore overstate the resilience available to a buyer. Hundreds of organisations may exist, while a particular process, package, material or qualification still depends on one facility or a small number of specialists.

For a design manager, the practical question is where the chosen technology sits in that chain. Is the UK company supplying finished devices, licensable IP, a design service, a specialist wafer process or a research platform? Which stages happen elsewhere, and where is the second qualified route?

The scale-up gap appears in purchasing decisions

The report highlights access to growth capital, skills and operating costs, particularly energy, as continuing barriers. These are policy issues, but they also appear in routine commercial checks. A supplier may have strong technology and customer interest while lacking the working capital, test capacity or production partners needed for a volume programme.

That does not make an SME an unsuitable supplier. It means qualification should cover the business and manufacturing route as well as the device. Buyers should establish who owns the tooling and test programme, where wafers and packages are made, what capacity is committed, how yield excursions are handled, and what happens if the company is acquired or cannot fund the next production step.

A more useful measure of progress

The headline growth in company numbers is encouraging. The next useful evidence will be less dramatic: more technologies transferring into stable production; more UK firms reaching repeat orders; and more customers able to qualify a second route without abandoning the original design.

For readers assessing a UK semiconductor supplier today, the study is best used as a map. It shows where clusters and capabilities exist. It does not replace the programme-level evidence required to decide whether a part can be designed in, bought repeatedly and supported for the intended product life.

Sources: UK Government, Semiconductor Sector Study 2026, updated 2 September 2026.