LeoBlue provides a direct-to-device long-distance communication solution based on Bluetooth, designed to deliver critical alerts and operational messages directly to smartphones and connected devices, without relying on terrestrial networks. During major emergencies and disaster situations, terrestrial communication networks are often damaged, overloaded or unavailable, precisely when first responder and civil protection authorities need reliable communication. It leads to coordination gaps and slower decision-making. To address this operational gap, LeoBlue provides an independent communication channel that remains available when conventional networks fail. The core of the solution is a compact, standardized transmission module. This module is the key technological building block of our system. It can be embedded into LEO (Low Earth Orbit) satellites, high-altitude platforms, stratospheric balloons or drones, depending on operational and coverage needs. This portability makes the solution flexible, scalable and adaptable to multiple mission profiles, from temporary crisis response to sovereign infrastructures. LeoBlue enables broadcasting of short, actionable messages directly to standard Bluetooth-enabled devices. Indeed, by relying on a mature, low-power and widely adopted communication standard, LeoBlue is compatible with the 30 billions devices already in use. This allows rapid deployment in large-scale, cross-border or infrastructure-degraded environments, while keeping costs low. LeoBlue does not replace existing early warning or crisis management systems, it complements them by adding a resilient communication layer that strengthens interoperability and continuity of operations. Messages can be broadcast to all devices within a geographic area or selectively targeted to specific responder teams or connected assets, ensuring that critical information reaches the right recipients under the most challenging conditions.
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Our ambition is to improve the resilience of emergency communications. The goal is simple : to ensure that critical information can still reach the field when terrestrial networks are unavailable or degraded. In many crisis situations, communication infrastructures fail or become saturated. When it happens, first responders and civil protection authorities lack reliable and timely information to coordinate effectively. At the same time, civilians are left without clear instructions, increasing exposure to risk. Coordination slows down and public safety deteriorates. In this context, the objective is to alert populations before disaster, inform them during and after events, and maintain direct communication with civil protection services. The focus is on immediate usability, without dependence on mobile networks or specialized equipment. LeoBlue addresses this challenge by adding a complementary communication layer that remains available in degraded conditions. For civilians, this means receiving clear alerts when other channels fail. For responders, it means maintaining an independent operational information flow. It reinforces existing systems. By using a widely adopted and low-power communication standard, it ensures interoperability by design, enabling rapid deployment and scalability across different contexts. Operationally, the ambition is to allow emergency services and local actors to act quickly and independently. Thus, LeoBlue reduces complexity for end users while strengthening communication workflows during emergencies, including cross-border use and integration with existing command-and-control and early warning platforms. As its current maturity level, LeoBlue targets concrete use cases such as reinforcing public warning systems and supporting disaster response coordination. By aligning development with real constraints, the ambition is to contribute to more resilient, sovereign and interoperable emergency communication capabilities across Europe.
The innovation of LeoBlue lies in a simple idea : making emergency communications more resilient by design, rather than adding complexity. LeoBlue starts from the operational reality and proposes a different approach by introducing a new space-based communication layer built on an existing technology. Instead of introducing new terminals, our solution leverages Bluetooth in a completely non-traditional context: direct satellite-to-device communication. This technological approach is protected by a patent and has been developed in close interaction with well-known research lab (Bordeaux University / CNRS / Bordeaux INP), ensuring scientific robustness while maintaining an operational focus. A key innovative aspect is therefore the use of a widely adopted, low-power communication standard in a non-traditional context. Because this standard is already embedded in 30 billions everyday devices, interoperability is achieved by default. Consequently, different organizations can use the solution without changing their equipment, even in cross-border or multi-agency scenarios. This choice lowers the barrier to adoption and makes the solution immediately usable in crisis situations. Innovation also lies in its scalable logic. Compared to cellular direct-to-device architectures, which require heavy space infrastructure and recent smartphones, LeoBlue relies on existing hardware already present. No additional receiver is required on the user side: only a dedicated application is needed to decode and display messages. Ultimately, our innovation is both operational and technical. By combining patented technology, research-backed development, low-cost architecture and infrastructure independence, LeoBlue enables a resilient and immediately deployable communication capability for the European emergency ecosystem.
Recent disasters illustrate the growing impact of communication failures during crisis. In Sri Lanka, the 2025 tropical cyclone Ditwah affected around 1.6 million people, displaced more than 230,000 and severely damaged telecommunication infrastructures, preventing access to information precisely when early warning and coordination were most needed. Similar patterns were observed in Indonesia ans Thailand, where floods and landslides affected several million people and disrupted power and communication networks. These events are not isolated. Globally, weather-related disasters caused losses estimated at USD 318 billion in 2024, while the ten most costly climate disasters alone are expected to reach USD 122 billion in 2025 (from Christian Aid). At the same time, evidence shows that early warning and anticipatory action are among the most cost-effective resilience measures : one dollar invested in early warning systems can save between 7 and 15 dollars in avoided losses. However, around one third of the world’s population is still not covered by effective early warning systems, and in Africa, up to 60 % of people lack adequate coverage. Countries with limited warning coverage experience disaster mortality rates up to eight times higher than those with substantial systems. In this context, strengthening the last-mile delivery of alerts and operational information becomes a critical level for impact. LeoBlue contributes by providing a universal, sovereign and accessible communication layer that remains functional when terrestrial networks fail. Universal because it relies on Bluetooth already embedded in billions of devices. Sovereign because it enables states and institutions to operate their own independent alert channel. Accessible because it requires no new hardware and leverages existing infrastructure, thus keeping low cost. By reinforcing the continuity and reach of emergency communications, LeoBlue aligns with global efforts such as Early Warnings for All.
LeoBlue is built by a small, multidisciplinary team with experience in radio-frequency communications, embedded systems and critical communications. Indeed, the team includes engineers with a strong background in space and radio-frequency technologies. We also combine strong entrepreneurial experience, deep knowledge of the space and emergency ecosystems. Plus, we benefit from the support of an experienced advisory board. Attention is also paid to diversity and gender balance within the team.
LeoBlue is built by a small, multidisciplinary team with experience in radio-frequency communications, embedded systems and critical communications. Indeed, the team includes engineers with a strong background in space and radio-frequency technologies. We also combine strong entrepreneurial experience, deep knowledge of the space and emergency ecosystems. Plus, we benefit from the support of an experienced advisory board. Attention is also paid to diversity and gender balance within the team.