Etherstack plc (ASX: ESK) is an Australian-listed company in the Technology sector with a market capitalisation of $70.8M and the 927th-largest security on the ASX by market capitalisation. The ESK share price is $0.50, down 8.26% today and up 19.05% over the past 12 months. Shares have traded between $0.355 and $0.82 over the past 52 weeks. In its most recent reported period (ending 31 Dec 2025), Etherstack plc reported revenue of $6.1M and a net loss of $3.0M.
About Etherstack plc
Etherstack plc (ESK.AX), an Australian firm specializing in wireless technology, primarily licenses its essential radio communication systems to global equipment manufacturers and network operators. Their advanced technology powers push-to-talk (PTT) capabilities, sophisticated digital land mobile radio (LMR) platforms, and functionalities across cellular and satellite networks. The company's offerings include a robust portfolio of cryptographic solutions. This encompasses the P25 Security Suite, which seamlessly integrates AES/DES P25 encryption with support for P25 Key Fill Devices (KFDs) to ensure end-to-end subscriber encryption for P25 systems. They also provide P25 key management facilities, P25 security dongles, and a FIPS 140-2 Cryptographic Module – a compact, single-board security device that executes APCO P25 encryption, decryption, key management, and storage, all compliant with FIPS140-2 specifications. For defense clients, Etherstack supplies a diverse array of waveform services. These include technology licensing and transfer, expert support, leveraging existing waveform heritage, providing dedicated test and development environments, offering risk outsourcing, and adhering to strict reconfiguration and architectural framework standards. Furthermore, their product range incorporates foundational LMR network components, various wireless communication protocol stacks such as APCO P25, dPMR, DMR, MPT1327, and TETRA, alongside tactical and satellite systems like P25 tactical repeaters and the IVX Push-to-Talk (PTT) IP radio. Etherstack serves critical sectors, including public safety, military, utilities, transportation, and natural resource industries. Established in 2012 and headquartered in Chippendale, Australia, the company initially traded as MM&S (5698) plc before officially adopting the Etherstack plc name in May of the same year.
