Summa Defence Oyj, a defense and security technology group, focuses on dual-use technologies in Finland. It offers machines, backhoe loaders, environmental maintenance machines, off-road machinery, watermaster dredgers, and ecological solutions, as well as develops, manufactures, and supplies space modules. The company also offers aluminum and steel professional vessels and ships; and drones, near-eye displays, and renewable energy solutions for industry, energy companies, and properties. The company was formerly known as Meriaura Group Oyj and changed its name to Summa Defence Oyj in June 2025. Summa Defence Oyj was incorporated in 2024 and is based in Helsinki, Finland.