UK Cybersecurity Stocks With Critical Infrastructure Exposure Retail Investors May Miss

Cyberattacks on UK power and gas assets are no longer a distant risk; they are affecting real plants, real revenues and real reputations. As smaller generators face tighter rules and higher cyber bills through to 2030, money shifts across the market. This article walks through three UK listed cybersecurity related stocks exposed to that story, and explains how the same headlines can create both openings and tripwires for your portfolio.

The stocks below are just a starting sample. The full screen surfaced 38 more UK listed cybersecurity related companies tied to critical infrastructure with equally compelling narratives that are not covered here. To identify and analyze the highest conviction plays for your own portfolio, head straight into the Cybersecurity Providers for Critical Infrastructure and Utilities screener.

Tracsis (AIM:TRCS)

Tracsis sits right on the cyber exposed edge of transport infrastructure, supplying software, hardware, data analytics and GIS that help rail and road operators run timetables, monitor assets and manage incidents across IT and operational technology. It generates about £39 million from Rail Technology & Services and around £45 million from Data, Analytics, Consultancy & Events, giving investors a mix of mission critical rail systems and broader transport data services tied to the same resilience theme that now worries power and grid operators. With a market cap of roughly £101 million, Tracsis is a mid sized UK stock that is already embedded in regulated networks where cyber risk is front of mind.

For investors watching the fallout from recent cyberattacks on UK energy assets, Tracsis is worth attention because it already sells operational IT and monitoring tools into regulated rail networks that face similar resilience and compliance pressures to utilities. The company is aiming to increase recurring software and transactional revenues in rail, supported by acquisitions, R&D and a growing presence in North America. This may be relevant as infrastructure owners are pushed to invest more in control systems and remote monitoring. However, Tracsis has also experienced funding shortfalls in UK rail upgrade cycles, procurement delays and the impact of a cyberattack on a large customer, so execution and contract timing still carry real risk. For investors seeking exposure to cybersecurity and operational technology without focusing exclusively on security vendors, Tracsis provides an alternative angle that may merit closer research.

Tracsis is trying to turn mission critical rail software and data into steadier recurring revenue. To see how that ambition lines up with its cash flows, contracts and balance sheet, start with the analysis report for Tracsis. This also highlights one underappreciated twist in the story that could change how you view its risk and reward profile.

GB Group (LSE:GBG)

GB Group is a £353 million UK stock focused on identity data intelligence, helping organisations verify users, authenticate documents, use biometrics and prevent fraud. This is increasingly relevant as utilities and critical infrastructure operators tighten access controls to their systems. Identity brings in about £175 million of revenue, with Location contributing around £89 million and Global Fraud Solutions about £22 million. This gives the company a broad footing across digital identity and fraud prevention.

For investors watching cyber risk rise across power, gas and other infrastructure, GB Group offers exposure to the identity layer that controls who can access sensitive systems, at a time when regulators and operators are under pressure to harden defences. The company is not without issues, including recent contract losses, slower revenue guidance of 1 to 3% for FY2027 and a move from an £8.63 million profit to a £75.09 million loss in FY2026. Yet the stock trades on a modest sales multiple, pays a 2.85% dividend, and is working on platform unification and AI driven risk tools. Management believes these initiatives can help restore growth and margins. The Americas business and the shift to subscriptions carry real execution risk. This is one reason why a closer look at how GB Group is priced against its identity and fraud opportunity could be worthwhile for patient investors willing to dig into the details themselves.

GB Group’s stalled headline growth and recent loss could be masking a very different risk reward setup. Scan the analyst forecasts for GB Group to see what may be quietly shifting underneath the surface.

Invinity Energy Systems (AIM:IES)

Invinity Energy Systems builds large scale vanadium flow battery systems that store electricity for grids, data centres and industrial sites. This naturally ties it into the cybersecurity conversation because these batteries connect into grid control and monitoring systems that need to be kept secure. All of its £8.2 million of revenue currently comes from batteries and battery systems, with Europe the largest reported region for sales, followed by North America and Asia. With a market cap of about £129.1 million, Invinity Energy Systems is a small but increasingly visible player in the long duration storage space linked to critical infrastructure.

Investors looking at cyber risk around smaller UK power plants may focus on Invinity Energy Systems because its long duration batteries sit on the same grid edge where resilience, control systems and cybersecurity now intersect. The company is targeting utility scale projects, such as the Technology Centre Laufenburg campus that combines its vanadium flow batteries with an AI data centre. It remains loss making and reported a £24.1 million net loss on £8.2 million of sales in 2025, with less than a year of cash runway. That mix of fast growing project demand, governance upgrades and real financing risk is where some of the most interesting elements of the Invinity story begin.

Invinity Energy Systems is where rising grid scale battery orders collide with real financing pressure. The story looks very different once you see how projects, cash runway and risk all line up in the Invinity Energy Systems financial health report

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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