Gentleware AG is a software company headquartered in Hamburg, Germany. Gentleware was founded in 2000 with software based in the open source project ArgoUML. The company is best known for Poseidon for UML, the world's most downloaded commercial UML tool, with over 1,200,000 copies distributed to over 100 countries.
Since 2004 Gentleware Ukraine, has been the center of the development of the German company Gentleware AG and provides complete development, support and sales of such products as Poseidon for UML, Apollo for Eclipse, Poseidon for DSLs.
- Gentleware AG. "Company Overview". Retrieved 2009-08-27.