ISL Spreewerk d.o.o. is a subsidiary company of the German company Spreewerk Lübben GmbH. The company Spreewerk Lübben GmbH was founded in 1957 and has been one of the Eastern-Germany leading ammunition manufacturers of the small arms ammunition production range up to 1990.
After German reunification the Spreewerk Lübben GmbH was converted into a state of the art demilitarization facility.
In 1992 General Atomics (GA), a Californian company from San Diego / USA, purchased the company Group Spezialtechnik (which includes the Spreewerk Lübben GmbH) from the German Government Agency responsible for privatising the former GDR state-owned industries.