Calnex Solutions Reports Strong FY25 Growth with Return to Profit and 800Gb/s Product Success

A Phoenix Rising: How Calnex Engineered Its Comeback

If you’d told me 18 months ago that Calnex Solutions would be posting a 1,339% surge in underlying EBITDA, I might have raised an eyebrow over my morning espresso. But here we are. The Linlithgow-based test & measurement specialist just dropped FY25 results that read like a masterclass in strategic pivots. Let’s unpack why this isn’t just another corporate turnaround story.

The Numbers That Matter

First, the headline acts:

• £18.4m revenue (+13% YoY) – the first growth since telecoms headwinds began battering the sector
• Gross margins at 75% (+2 percentage points) – proof that premium tech sells
• £720k pre-tax profit vs. £384k loss last year – the ship’s not just righted, it’s cruising

But the real showstopper? Underlying EBITDA leaping from £80k to £1.15m. That’s not growth – that’s a metamorphosis.

The Secret Sauce: 800Gb/s & Market Chess Moves

Three words: Paragon neo-S. This 800Gb/s synchronisation testing beast became Calnex’s Excalibur in H2, slicing through markets from data centres to defence contracts. But here’s the kicker – it wasn’t even built for some of these verticals.

CEO Tommy Cook’s team pulled off a textbook “skate to where the puck’s going” play:

• 41% of orders now from cloud/data centre players (up from 39%)
• US defence sector emerging as dark horse contributor
• China revenue flat-lining? No matter – Americas picked up the slack with 44% growth

The Distribution Gambit

Remember the Spirent breakup? Critics winced. But replacing a single distributor with a global partner network (North America to APAC) proved inspired:

• Channel sales now 43% of revenue vs. Spirent’s 67% dominance previously
• Dedicated channel managers hired – no more “spray and pray” partnerships

Result? Sales diversity that would make a hedge fund manager blush.

R&D: Spending Smart, Not Just Spending

While R&D capitalisation dipped to £4.8m (from £5.6m), the focus sharpened:

• 800Gb/s product development costs front-loaded in FY24
• Early R&D work on 1.6Tb/s solutions – because resting on laurels isn’t in the playbook

This isn’t austerity – it’s surgical investment. The kind that lets you whisper “we’re already testing 1.6Tb/s prototypes” to hyperscalers.

Balance Sheet Ballet

Cash dipped 8% to £10.9m? Look closer:

• £2.3m cash generated in H2 alone
• April cash position surged to £12.7m as receivables cleared
• Zero debt – the anti-2022 tech startup

With 94% staff retention and a dividend maintained at 0.93p/share, this is stability meets ambition.

The Road Ahead: Why Telecoms Is Just the Opening Act

Cook’s crystal ball sees three acts:

1. Cloud & Defence Scaling: 43% cloud revenue is just basecamp
2. 1.6Tb/s Arms Race: Early customer engagement suggests 2027 could be fireworks
3. Geopolitical Jiu-Jitsu: US tariffs? More like “hold my Irn-Bru” as federal contracts grow

The kicker? “We’re not reliant on telecoms recovery.” Translation: We’ve built an optionality engine.

The Verdict

Calnex hasn’t just survived the telecoms winter – it’s evolved. By marrying Scottish engineering grit with Silicon Valley-style market agility, they’ve crafted a blueprint for UK tech success. The real question isn’t “will FY26 hit expectations?” – it’s “how many new markets will they disrupt before 2026?”

One to watch? Absolutely. But more importantly – one to study.