HYDROTECHNIK LÜBECK GMBH is a Germany-based company specializing in water engineering, combining environmental protection with technical progress. Established in 1962, the company is involved in various activities such as oil booms, compressed air barriers, ice prevention systems, and the creation of complete protection systems for desalination plants. Their most significant contribution is the development of the Big Bubble Curtain, a versatile compressed air system aimed at reducing noise emissions during offshore pile-driving and protecting marine wildlife during blasting to remove munitions. They operate in the Manufacturing and Water industries, with a slogan "Protecting All Marine Life Forms." As of now, there is no available information regarding their last investment or the investors involved.