Codan: the Adelaide defence tech company hiding in plain sight

Codan is one of the most quietly accomplished technology companies on the ASX. Founded in Adelaide in 1959, Codan designs and manufactures radio communications equipment and metal detection systems that are used in some of the world's most demanding environments: conflict zones, remote mining operations, and disaster-relief efforts. Its products carry Codan's own brand, serve governments and militaries in over 150 countries, and generate revenue that most Australian tech investors tend to overlook.

The company trades on the ASX under the ticker CDA. Its market capitalisation has fluctuated around the $1 billion mark through 2026, placing it firmly in the mid-cap technology space. That size puts Codan above most local scale-ups but well below the household names. The result is a company that gets little public attention relative to the defensible business it has built over six decades.

What Codan actually makes

Codan operates two core divisions. The communications business produces high-frequency (HF) radio systems under the Codan brand and tactical communications equipment under the Domo Networks and Zetron brands, both acquired in earlier years. These radios are built for military users, humanitarian organisations, and remote industrial operations where cellular infrastructure doesn't exist or can't be trusted. The United States Department of Defence has been a customer. So have agencies across Africa, the Middle East, and Southeast Asia.

The metal detection division, which Codan runs through its Minelab brand, is a different beast entirely. Minelab makes consumer and professional metal detectors used by hobbyists, gold prospectors, and humanitarian demining programs. The humanitarian side is significant: Minelab's CEIA-licensed demining detectors have been deployed in post-conflict countries to clear unexploded ordnance. The gold prospecting market, particularly in Africa, drives meaningful revenue in years when gold prices are elevated.

The two divisions don't have obvious synergies in product terms, but they share a common thread: both operate in markets where reliability under stress is non-negotiable. Codan has used that positioning to maintain pricing power that commodity hardware businesses rarely achieve.

The Adelaide manufacturing story

Codan designs and manufactures in South Australia. This isn't a legacy cost it's trying to shed. Codan has argued for years that Australian-made defence communications equipment carries real commercial value with allied governments and NATO-adjacent customers who scrutinise supply chain provenance. That argument has gained force since 2022 as sovereign manufacturing became a policy priority across the Five Eyes countries.

The Australian government's push to build local defence industrial capacity is relevant here. Codan sits at the intersection of two trends: increased allied government spending on tactical communications, and growing scrutiny of foreign-manufactured defence electronics. Its Adelaide facilities give Codan a story that a Taiwanese or Chinese contract manufacturer could not tell on its behalf.

This positions Codan differently from the broader ASX tech cohort. The ASX tech sector in 2026 skews heavily toward software, fintech, and cloud-native platforms. Codan's hardware-centric, defence-adjacent model is genuinely rare in that mix.

Acquisitions and the communications build-out

Codan's communications division has grown largely through acquisition. The purchase of Zetron in 2020 added land mobile radio dispatch and interoperability systems, extending Codan's reach into public safety communications for police, fire, and emergency services in North America and Europe. Domo Networks, acquired earlier, brought satellite and IP networking products for resource and humanitarian sector deployments.

Each acquisition followed a similar logic: buy a niche communications technology with an established customer base, integrate it with Codan's manufacturing and distribution, and preserve the product identity for existing customers. Codan has been disciplined about not overpaying. The company tends to target businesses with real revenue and defensible customer relationships rather than growth-stage bets.

That conservatism has sometimes frustrated investors who wanted faster top-line growth. It has also meant Codan avoided the digestion problems that plague acquirers who move too fast. The integration of Zetron, in particular, took time but delivered cross-selling opportunities into the US public safety market that Codan's core HF radio business couldn't access alone.

The Minelab volatility problem

Minelab is Codan's highest-profile division and also its most volatile earnings contributor. When gold prices spike, artisanal and small-scale gold miners in West Africa buy metal detectors in large numbers. Those sales move quickly and generate strong margins. When gold prices retreat or when regulatory crackdowns limit informal mining activity in key markets, Minelab's revenue drops sharply.

Codan's management has been transparent about this cyclicality. The company reports Minelab separately and has been investing in product diversification, particularly growing its hobbyist and consumer segments in North America and Europe, which are less gold-price sensitive. The Codan corporate site reflects this dual-market positioning, with consumer-facing Minelab content clearly separated from the institutional communications offering.

The challenge is that Minelab's African gold market delivers margins that the hobbyist segment can't easily replicate. Codan has not solved this problem so much as managed it, maintaining enough balance sheet strength to absorb the down years without distress.

Defence spending tailwinds

The global increase in defence budgets since Russia's 2022 invasion of Ukraine has benefited Codan's communications business. HF radio demand from military and paramilitary customers has grown across Eastern Europe, Southeast Asia, and the Middle East. Codan's established reputation in tactical communications, built over decades of supplying to US and Australian defence, positions it well to capture incremental spending.

Australia's own AUKUS commitments have drawn attention to the domestic defence industrial base. Codan is not an AUKUS prime contractor, but defence spending ripples broadly. Increased Australian Defence Force investment in communications infrastructure represents a genuine opportunity for a company that already holds relevant approvals and customer relationships.

The cyber security dimensions of military communications are also becoming more prominent. Encrypted HF radio is resistant to certain categories of electronic warfare that can disable cellular or satellite links. That resilience has renewed interest in HF as a backup layer for digital communications networks, a point relevant to anyone following how Australian technology firms are positioning themselves in complex global markets.

What the numbers show

Codan's financial profile is unusual for an ASX tech company. It generates consistent free cash flow, pays a dividend, and carries relatively modest debt. Revenue has grown from around $280 million in FY2020 to over $500 million in recent years, with the communications segment now larger than Minelab by revenue. EBITDA margins in communications have been running in the mid-to-high twenties, which reflects the value of Codan's proprietary technology and long-term customer relationships.

The company is not cheap on a price-to-earnings basis, though it trades at a discount to global defence electronics peers. Part of that discount reflects the Minelab volatility. Part reflects that Codan is simply not well known outside the small community of investors who follow Australian defence and industrial technology stocks.

The case for watching Codan more closely

Codan doesn't attract the narrative energy of a consumer app or a fintech disruptor. Its products are expensive, niche, and built for people working in difficult conditions far from most technology commentators. That obscurity is partly why it has been able to build quietly without the scrutiny that follows higher-profile companies.

Three things make Codan worth watching in the current environment. First, defence communications spending is structurally elevated and likely to remain so. Second, Australian sovereign manufacturing is becoming a commercial differentiator rather than just a policy talking point. Third, Codan's management team has demonstrated, over multiple cycles, that it can run a hardware business with software-like capital discipline.

None of this guarantees the stock outperforms. But it does mean Codan is a more interesting company than its profile suggests, built on real technology, real manufacturing, and real customers in markets where reliability is not optional.