FOSSA Systems is a company based in Madrid, Spain and Lisbon, Portugal, specializing in satellite manufacturing and IoT solutions. Their services include space-related technologies and solutions for IoT applications. The company operates within the European market.

FOSSA offers worldwide IoT satellite connectivity and satellite space services for industrial properties with their assets in outlying regions.

FOSSA Systems builds nanosatellites and microsatellites launched into Low-Earth Orbit (LEO). Their LEO satellites carry IoT receivers and other payloads, such as SDRs (Software Defined Radios), which can act as IoT cell phone towers from Space.

FOSSA System's satellites provide LoRa IoT (The Internet of Things) to remote areas without mobile coverage for low-wattage devices. These satellite communication services are commercialized by FOSSA as Software as a Service (SaaS) for IoT solutions or sold as dedicated satellites and ad-hoc projects.

The company's solution has applications in monitoring and tracking millions of assets in logistics, linear infrastructure, utilities, or agriculture in remote areas with connectivity issues or as a unified mass IoT system.

The company plans to deploy a constellation of 80 satellites by 2024 and has four more spacecraft scheduled for launch in 2023.

FOSSA also manufactures ground stations for operating their constellation and currently has two installed, one in La Linea, Spain, and one in Madrid, Spain. FOSSA satellites receive messages from Space through their sensors and send the gained information to the ground stations on Earth. The sensors and ground stations use LoRa Technology to communicate.

FOSSA Systems was initially founded as a non-profit project youth association in 2018 by 16-year-old Julián Fernandez to democratize access to space and the mass adoption of IoT. In 2019, they launched the first Spanish picosatellite FOSSASAT-1, which has a size of 5x5x5cm and a mass of 250g, to demonstrate their LoRa IoT Concept.