SRT Marine Systems revenue jumps 49% as maritime surveillance growth accelerates

A strong year for SRT Marine Systems

SRT Marine Systems has delivered a sizeable step up in its financial performance, with estimated revenue rising 49% to £116 million for the year ended 30 June 2026.

Profit before tax and exceptional item more than doubled, increasing 105% to £10 million. The maritime surveillance specialist said these unaudited results were in line with market expectations.

That combination of rapid revenue growth and faster profit growth is encouraging. It suggests SRT is gaining operating leverage as the business scales, although the announcement also contains an important warning about pressure on the gross profit margin of one project.

The balance sheet appears to have strengthened considerably too. Gross cash reached £57 million, compared with £9.9 million a year earlier. However, investors should note that £27 million of the latest figure is restricted cash held for project performance bonds, rather than money freely available for general corporate purposes.

FY2026 numbers at a glance

Financial measure	FY2026 estimate	FY2025	Change
Group revenue	£116 million	£78.0 million	49%
Profit before tax and exceptional item	£10 million	£4.9 million	105%
Gross cash, including restricted cash	£57 million	£9.9 million	473%
Unrestricted cash	£30 million	Not disclosed	Not disclosed
Restricted cash	£27 million	Not disclosed	Not disclosed

Based on the disclosed figures, profit before tax and exceptional item represented approximately 8.6% of revenue in FY2026, up from around 6.3% in FY2025.

That is a useful sign of improved profitability at group level. Still, these numbers are estimated and unaudited, while the size and nature of the exceptional item are not disclosed in this update.

Revenue is coming from a broader mix

SRT provides maritime intelligence, surveillance and navigation safety systems. Its customers range from government agencies, including coast guards and fisheries authorities, to commercial and leisure vessel owners.

The company said FY2026 revenue came from a growing range of sources. These now include software-enabled hardware, support and data services, unmanned surveillance vessels, commonly known as USVs, and infrastructure.

This broader mix matters because large sovereign surveillance projects can be complex and their timing may be difficult to predict. Generating revenue from hardware, software, services, vessels and infrastructure could give SRT more ways to earn from each customer relationship.

Management's strategy is based on forming long-term partnerships with sovereign customers. Chief executive Simon Tucker said the company's global position, product offering and partnership model were now starting to show through in its financial performance.

One project is facing margin pressure

The main caution in the update relates to an ongoing project where the gross profit margin will be lower than expected.

SRT gave two reasons. First, costs have increased because of Middle East-related supply chain disruption. Second, the company decided to expand the scope of the initial system.

Management describes the additional scope as a deliberate investment in future opportunities. The aim is to create an enhanced reference system that can demonstrate SRT's capabilities and help facilitate further contracts and projects.

In other words, SRT is accepting a lower margin on this project in the hope that the improved system will support future revenue and profit. Management expects the reduction to be balanced by additional business from other projects over time.

There is logic to that approach, particularly when selling complicated systems to sovereign customers. A strong operational reference can help prove that the technology works at scale. But the future contracts intended to offset the lower margin have not yet been quantified in this announcement, and their timing remains uncertain.

Investors will therefore want to watch whether project-level cost pressure remains isolated or begins to affect a wider portion of the contract portfolio.

What the £57 million cash figure really means

The increase in gross cash is eye-catching, but the composition deserves attention.

Of the £57 million reported at the end of FY2026, £30 million was unrestricted. The remaining £27 million was restricted and held for project performance bonds.

Performance bonds are financial guarantees commonly required on major contracts. They provide customers with protection if a supplier fails to meet agreed obligations. The restricted cash supports those guarantees and cannot be treated in the same way as unrestricted funds.

Even after separating the two categories, £30 million of unrestricted cash gives SRT a meaningful financial resource. The announcement does not provide debt, net cash, cash flow or working capital figures, so investors cannot assess the complete balance sheet position from this update alone.

The £1.8 billion pipeline offers scale, not certainty

SRT enters its new financial year with a reported pipeline of £1.8 billion. Management expects to meet existing market expectations through a combination of executing current contracts and commencing pending new contracts.

Additional pipeline opportunities could also convert during the year. However, SRT was careful not to provide detailed guidance because it cannot precisely determine the dates and timescales of new projects.

That distinction is crucial. A pipeline represents potential opportunities, not contracted revenue. The £1.8 billion figure demonstrates the scale of demand being pursued, but the announcement does not disclose how much is expected to convert, when conversions may happen or what margins could be earned.

SRT plans to provide further market guidance when the timing of new projects becomes clearer.

What investors should watch next

The strongest feature of this update is the scale of the reported growth. Revenue increased by £38 million, while profit before tax and exceptional item rose by £5.1 million. The faster rate of profit growth points to improving group-level economics as SRT expands.

The growing diversity of revenue sources and £30 million unrestricted cash balance are further positives. There is also a substantial pipeline from existing and prospective sovereign customers.

The main risks are execution and timing. One project's margin is already below expectations, supply chain disruption is increasing costs, and future performance partly depends on pending contracts beginning as planned. Large sovereign projects may also create uneven revenue patterns between reporting periods.

The next full results should provide important missing detail, including audited numbers, the exceptional item, cash flow, working capital, debt and the broader margin picture. Investors will also want evidence that the £1.8 billion pipeline is converting into signed contracts at commercially attractive returns.

For now, SRT's FY2026 update shows a company scaling quickly and delivering stronger profits. The challenge is to maintain that momentum while controlling project costs and turning a large opportunity pipeline into dependable earnings and cash generation.