Etherstack (ASX: ESK) Secures US$1.8 Million US Telco Expansion as Global Contracts Fuel Growth Momentum

Etherstack Plc (ASX: ESK) is building impressive momentum in the global mission-critical communications market, securing an additional US$1.8 million from a major US telecommunications customer.

The agreement follows a US$1.9 million UK Government project milestone announced just days earlier, highlighting accelerating commercial activity across two important international markets.

With revenue expanding, recurring support income growing and major customers extending existing projects, Etherstack is strengthening its foundations for sustained international growth.

Key Numbers Behind Etherstack's Growth

• US$1.8 million: Additional US telecommunications project revenue announced on 12 November 2026.
• US$8.5 million: First-half 2026 revenue, representing 40% year-on-year growth.
• US$2.7 million: First-half support revenue, increasing 120% from the previous corresponding period.
• US$1.9 million: Revenue contribution from the latest UK Government project milestone.
• US$17.2 million to US$18.9 million: Previously announced FY2026 revenue guidance.

Major US Telecommunications Customer Expands Partnership

Etherstack's US subsidiary has secured an expansion of its existing project with a Tier 1 telecommunications carrier, originally announced in August 2025.

The additional US$1.8 million covers new technology features, professional deployment services and further connections between telecommunications networks and public safety agencies.

The expansion centres on Etherstack's 3GPP Land Mobile Radio Interworking Function (LMR-IWF) technology, which enables traditional emergency-service radio networks to communicate with modern broadband systems.

Management expects most of the additional revenue to be recognised within 90 days, providing contributions across FY2026 and FY2027.

What makes this agreement particularly encouraging is that it represents additional business from an established customer.

Rather than relying entirely on new contract wins, Etherstack is demonstrating its ability to expand existing commercial relationships, potentially creating opportunities for further deployments, integration services and recurring support revenue.

UK Government Contract Adds Another Growth Driver

The US agreement follows an important milestone announced on 9 November.

Etherstack confirmed the successful delivery of its third major UK Government project milestone on schedule, contributing approximately US$1.9 million to second-half revenue.

Combined with earlier deliveries, the UK project is expected to contribute approximately US$4 million in second-half 2026 revenue.

The broader UK Government contract has grown beyond £16.2 million, demonstrating the scale of Etherstack's international project portfolio.

Management also anticipates further contract expansion during the first quarter of FY2027.

These developments highlight Etherstack's growing presence in government and public safety communications, where reliability, technical expertise and established customer relationships can provide meaningful competitive advantages.

Revenue Growth Highlights Expanding Commercial Opportunity

Etherstack's first-half financial performance provides further evidence of its strengthening commercial position.

Revenue increased 40% to US$8.5 million, supported by expanding telecommunications and government contracts.

Particularly encouraging was the 120% increase in support revenue to US$2.7 million.

Recurring support arrangements could become an increasingly valuable component of Etherstack's business model, supporting revenue visibility beyond individual project deliveries.

Although first-half EBITDA declined 19% to US$2.06 million and statutory net profit reached US$432,000, the company remained operationally cash-generative, reporting US$792,000 in operating cash inflows.

At 30 June 2026, Etherstack held US$749,000 in cash against approximately US$2.48 million in borrowings.

Improving profitability, cash conversion and managing the June 2027 debt maturity will remain important as the company pursues additional growth.

What Etherstack Is Doing Now

Etherstack is advancing telecommunications, defence and public safety communications projects across several international markets.

Its strategy combines major technology deployments with expanding support services, creating opportunities to generate revenue throughout the customer relationship.

The company is also developing specialised defence communications capabilities and pursuing additional government contracts.

Management expects further material contract awards before the end of 2026, although these opportunities have not yet been secured.

Insight: Is Etherstack Building a Stronger Long-Term Growth Platform?

We see Etherstack's expanding international customer relationships as a compelling indicator of its commercial potential. The latest US agreement and UK Government milestones demonstrate growing demand for its specialised communications technology, while the 120% increase in support revenue suggests opportunities for more dependable recurring income. Although margins, working capital and debt refinancing require attention, the company's ability to secure additional business from established customers strengthens our confidence in its competitive positioning. Continued contract execution and stronger cash conversion could establish a more profitable and financially resilient business.

What Happens Next?

Etherstack's immediate priorities include delivering the expanded US telecommunications project, progressing UK Government contract milestones and securing potential additional awards.

Further developments during the first quarter of FY2027 could strengthen its revenue pipeline and international market position.

The company's full-year results will also provide valuable insight into whether accelerating commercial activity is translating into improved earnings and cash generation.

With expanding international contracts, growing support revenue and specialised technology serving essential communications markets, Etherstack is entering an important phase of commercial development.

Successful execution could position the company for sustained revenue growth and a stronger long-term financial outlook.