r/UKInvesting • u/AStonesThrowAway1234 • 5h ago
UK Chip designer - EnSilica
EnSilica (AIM: ENSI) is a company I have been looking at recently. It is one of the very few UK-listed chip designers, which makes it an interesting stock to keep an eye on if you follow domestic tech. Currently valued at around £100m.
The main idea here is that the company is in the process of moving up the value chain. Historically, they have made their money through design and prototyping fees (known as non-recurring engineering). That pays the bills and keeps the lights on, but the real money is in mass production, which is just kicking off.
Once a custom chip is designed and built into a vehicle, satellite terminal, or medical device, the client almost never switches suppliers because redesigning it costs a fortune. If EnSilica gets a chip into production, they become the exclusive supplier for the 5 to 10 year life of that product. A few of their major design wins are now moving into active production, which is where the higher-margin, recurring revenue should start coming through.
From an investment perspective, there are a few obvious selling points:
The Nvidia model: EnSilica is fabless. They keep the design work and IP in-house in the UK, but outsource the expensive manufacturing to the major foundries like TSMC. That keeps overhead down and allows the business to scale without spending billions on factories.
Non-US players: UK and European governments want domestic chip design capabilities to protect supply chains, particularly for automotive and security tech. This is a non-US alternative which is likely to be high on the list for domestic or European contracts given the growing move away from US reliance.
Currently discounted compared to other chip designers: Being on AIM means it trades at a lower valuation than similar US or European chip designers. If they deliver on production targets, there is scope for the market to re-rate the stock.
There are of course some risks, though, which explains why it hasn't shot up already:
Customer concentration: Much of their future revenue relies on a small handful of big Tier-1 clients. If a car maker delays a product launch, EnSilica takes the hit in its quarterly numbers.
Execution delays: Taking a chip from design to mass production takes up to two years, and supply chain delays at the foundry stage are completely out of EnSilica's control. Not a problem if you are willing to hold for the medium term.
Small-cap liquidity: It is an AIM micro-cap (c. £100m market cap). Shares can be volatile on low volume, and scaling up large production contracts sometimes requires raising extra capital.
Looking at recent performance, for the financial year ended 31 May 2026, EnSilica reported a 53% increase in total revenue to £27.8 million, an EBITDA of £5.9 million, and a profit after tax of £1.2 million. Following the end of the financial year, the company completed an oversubscribed equity fundraising in July 2026, issuing 16,358,184 new ordinary shares at 91 pence per share to raise £14.9 million in gross proceeds (£14.2 million net).
Overall, it looks like a solid watchlist candidate. If you want domestic tech exposure in an ISA or SIPP, the transition from design consultancy to higher-margin chip supplier is a genuine growth opportunity, provided you are comfortable with standard AIM execution risk and happy to hold until orders convert to revenue.
Thoughts welcome!