Two counter-drone companies made moves in the same week that point to the same underlying story: the market for detecting, tracking and defeating unauthorized drones is growing fast enough to pull new capacity across oceans and spin up entirely new startups to chase it. In North Carolina, Australian passive-radar specialist Silentium Defence opened a US headquarters. In the UK, three executives who left airspace-management company Altitude Angel launched a new threat-detection firm, Wardyn Technologies, built around a pair of products aimed at both airspace threats and ground-level insider risk.
Neither move is enormous on its own — a single facility, a single startup launch. But together they sketch the shape of where counter-UAS (C-UAS) investment is heading in late 2026: toward passive, sensor-fusion-based detection that doesn't rely on emitting a signal, toward domestic manufacturing to dodge tariffs and supply-chain friction, and toward platforms broad enough to sell into defense, critical infrastructure, prisons and commercial sites all at once.
Silentium Crosses the Pacific
Silentium Defence, an Australian firm that describes itself as a passive-radar specialist for defence and space applications, has opened a US headquarters in Apex, North Carolina, according to a special report published by Janes on September 22, 2026. The facility is nearly 10,000 square feet and is sized to accommodate roughly 50 staff — program managers, sales personnel, technicians and support functions.
The company's own website confirms the core of its business: passive radar, a detection approach that listens for existing radio-frequency emissions reflecting off objects in the sky rather than transmitting its own radar pulses. That passive approach is increasingly attractive for counter-UAS work because it doesn't add another emitter to a battlefield or a sensitive site, and it's harder for an adversary to detect or jam. Silentium's stated focus spans counter-UAS, integrated air and missile defense, and space domain awareness.
According to Janes, Silentium's North America CEO, Matthew Ratnesar, framed the Apex expansion as a way to get physically closer to US customers, cut delivery timelines, and mitigate tariffs, taxes, shipping delays and customs friction that come with exporting hardware from Australia. Ratnesar said the company expects to establish a manufacturing capability in the US within 12 to 18 months. He described the move as part of what he called a "growing trend towards a US-secured supply chain" — language that reflects a broader pattern across the defense industrial base, where allied suppliers are increasingly standing up US-based production rather than shipping finished systems across the Pacific or the Atlantic.
Silentium's global CEO, Dr. James Palmer, characterized the US expansion as the realization of a long-standing export-focused strategy rather than a sudden pivot, according to the Janes report. Palmer co-founded the company in 2017 and continues to lead it as global CEO; its About page positions passive radar as its core technical differentiator in both the defense and space-tracking markets.
A New UK Entrant Splits Airspace and Ground Threats
On the other side of the Atlantic, a different kind of counter-drone company emerged the same week. According to a report published September 23, 2026 by Unmanned Airspace, three former executives of Altitude Angel — Richard Parker, Joe Guibarra and Christian Scheel Struwe — have launched Wardyn Technologies, a UK-based threat-detection and intelligence firm targeting both drone threats and insider/ground-level security risks.
Wardyn's approach is built around two named products sharing a common technical core. The first, SENTRair, is a sensor-fusion and command-and-control product for airspace threats, built around persistent radar surveillance and combining radar, optical, thermal, acoustic and RF sensors with cooperative sources such as ADS-B and Remote ID — pulling together multiple detection inputs into a single operating picture, the standard architecture for modern C-UAS systems that need to correlate scattered sensor feeds into one usable track rather than a pile of unconnected alerts.
The second product, Forseti, addresses a different problem: ground-based and insider threats, the kind of physical security concern that sits alongside airspace monitoring at defense sites, critical infrastructure, prisons and commercial facilities. Forseti uses what the company calls "Wall Tags" — cryptographic tags that can be read by standard smartphones. According to Unmanned Airspace, that design is meant to replace the proprietary wand readers that guard-tour and patrol-verification systems have traditionally relied on, lowering the hardware barrier for security teams who already carry phones on patrol.
According to Unmanned Airspace, both SENTRair and Forseti share a single core that fuses data from many different sensors and systems into one picture and then uses AI to pick out what matters, and both are designed to run locally with no cloud dependency — a detail that matters for defense and critical-infrastructure customers wary of sending sensor data off-site, and for sites like prisons where connectivity, data sovereignty or cybersecurity concerns rule out sending data off-site.
Why It Matters
Individually, a headquarters opening and a startup launch are routine industry news. Together, they're a signal of where money and talent are flowing in counter-drone technology.
First, the geography matters. Silentium's decision to build a US manufacturing footprint rather than simply sell into the US market from Australia reflects a broader shift among allied defense suppliers: tariffs, shipping delays and customs friction have made "build where you sell" a competitive necessity, not just a nice-to-have, for hardware-heavy defense products. Expect more allied C-UAS and radar vendors to follow the same playbook — regional headquarters first, local manufacturing within a year or two.
Second, the technology direction matters. Passive radar and multi-sensor fusion are both bets that the future of counter-drone detection isn't a single better sensor — it's combining what you already have (ambient RF, existing camera feeds, acoustic arrays) into a faster, more reliable track, without adding new emissions that give away a defender's position or draw jamming attention. Silentium's passive-radar pitch and Wardyn's shared fusion core are different technical routes to a similar goal: turn scattered detections into an actionable picture fast enough to matter.
Third, the market breadth matters. Wardyn isn't positioning itself as a pure defense play — its stated customer base spans defense, critical infrastructure, prisons and commercial sites. That's consistent with how the counter-drone market has evolved over the past few years: the same fusion architecture that tracks a hostile drone near a military installation can just as easily flag an unauthorized aircraft over a stadium, a data center or a correctional facility. Startups that can sell one core engine across all of those verticals have a larger addressable market than pure-play defense vendors, which helps explain why founders with airspace-management backgrounds — rather than traditional defense primes — are the ones launching new entrants like Wardyn.
Taken together, these two moves in a single week are a small but telling data point: counter-UAS demand is pulling in both established players expanding their footprint and new teams spinning out to build fresh architectures, on both sides of the Atlantic at once.
