James Fisher: A Wind-Farm Bubble Curtain Recast as an Anti-Drone Shield

Half-year defence rebound and a genuinely new dual-use pivot inside a £225m marine-services small cap

FSJ.L · Earnings Call · 2026-09-08

A tale of three divisions

James Fisher and Sons is a £225m-cap UK Marine Shipping name that sells complex engineering into the "blue economy" — submarine rescue and rebreathers, upstream energy services, and coastal tanker shipping. The headline for the half ended June 2026 was deliberately modest: revenue just under £196m, up 2.1%, underlying operating profit £14.2m up 27.9%, margin 7.2%, and Defence and transport doing the heavy lifting. ROCE ticked to 8.2%, a 210bps improvement, while net debt of £65.7m put covenant leverage at 1.5x — the upper end of target. The average hides a barbell. Defence grew revenue 43%, from £37.6m to £53.8m, and swung operating profit from £0.7m to £5.3m — a margin "just below 10%," essentially at the group's stated target. Maritime Transport lifted revenue 7.5% and profit 48% to £10.2m. Against that, Energy fell 20.6%. As Jean Vernet framed it, this was “robust trading in Defence and Maritime Transport, helping to offset challenging market conditions in Energy” — Jean Vernet, Chief Executive Officer · 2026-09-08. Karen Hayzen-Smith quantified the swing: “There was growth of GBP 7 million up from the prior period” — Karen Hayzen-Smith, Chief Financial Officer · 2026-09-08, almost all of it defence and transport volume.

Bubble curtain — a defence pivot hiding in plain sight

The most interesting thing in this call is not a number. It is the reappearance of Bubble curtain as a defence keyword. James Fisher perfected the technology as an environmental tool: a wall of compressed air that damps the acoustic shock of pile-driving during offshore wind construction. Vernet's insight is that the same physics runs in reverse — a sonar-guided drone or underwater craft is defeated by the acoustic wall.

We can use exactly the same technology the other way around, i.e., when you have an incoming threat from a drone... we have shown and proven in the field that these bubble curtains are 100% effective to deflect incoming drones. This can be applied to protect against bad actors trying to destroy infrastructure.
Jean Vernet, Chief Executive Officer · 2026-09-08

This is a textbook convergence of energy security and national security — what management calls critical underwater infrastructure. Vernet is explicit that the financial payoff is not yet here: “The revenue impact this year is minimal, the significance of this qualification bodes very well for the future as a new application of our technologies.” — Jean Vernet, Chief Executive Officer · 2026-09-08 In other words, this is optionality being priced into a narrative, not into the P&L. It is also notable that the broader market keyword set has started to carry dual use infrastructure as a theme, and geopolitical risk terms like political violence have been elevated — the market is thinking about exactly this civil-military crossover.

Energy's Middle East and offshore-wind squeeze

The drag is real. Energy revenue fell £17.7m, of which £8.7m was the non-repeating Mozambique IRM contract; the rest was a ~£9m volume decline concentrated in higher-margin work — well testing, decommissioning and bubble-curtain wind work. Division operating profit dropped 45% and margin narrowed to 7.8%. Management blames customer caution, delayed project starts, and policy-driven weakness in US offshore wind. The Iran war and Middle East disruption are named directly, echoing a theme that saturated the global keyword set earlier this year. James Fisher is clear it is choosing to manage rather than chase: it stepped back from Gulf ship-to-ship work on security and sanctions-compliance grounds even as Middle East volumes spiked industry-wide. The offsetting innovation story is Norway-built electric compressors for electrified oil-and-gas operations, plus a first Caspian Digi-Rig digital-twin contract. Vernet closed the call with the long view: “These are short-term disruptions. There is a fundamental structural growth in demand for energy.” — Jean Vernet, Chief Executive Officer · 2026-09-08

Maritime, fleet, and the long game

Maritime is quietly compounding. Fendercare ship-to-ship revenue rose ~9% to £28m on Latin American volume, and the tankship fleet programme is three-quarters delivered — three of four newbuilds in service. Because 80% of tankship revenue is contracted on 2–3-year terms, the new vessels earn an uplift only as contracts renew, with an immediate benefit in the spot market. Management frames this as a supply-side bet: the smaller-tanker fleet is forecast to reach obsolescence, tightening the market. On the strategy's self help track, a three-year supply-chain integration delivered savings and corporate costs rose only modestly. But the medium-term targets — 10% operating margin and 15% ROCE — remain undated. Hayzen-Smith conceded simply: “We haven't given a timeline associated with the targets.” — Karen Hayzen-Smith, Chief Financial Officer · 2026-09-08 Encouragingly, she noted pre-tax ROCE already exceeds 13%, and that defence landed just shy of the 10% margin mark.

What it means

For a small-cap with no supplied price tape, this report is a fundamentals story rather than a tape story. Three things changed: Defence rebounded to near-target margin, buying the group time; Energy reset lower on geopolitics and policy; and the bubble curtain quietly became a defence product with a genuine, if early, customer pipeline. The order book — £295m plus ~£95m of framework awards, ~60% deliverable within three years — gives visibility. The honest read is that James Fisher is riding structural defence and energy-security demand ahead of any revenue recognition, while its near-term earnings hinge on whether the energy market stops worsening. The pivot is real; the monetisation is a promise.