DDC-I
![DDC International A/S was housed in a converted textile mill in Lyngby, Denmark, here seen in 1990.](/Images/godic/202501/08/Dansk_Cardin_and_Textil_Fabrik_building_in_Lyngby3859.jpg")
![Several Ada compiler developers at DDC International in Lyngby in 1990.](/Images/godic/202501/08/DDC_International_corridor_19903859.jpg")
![DDC-I's development office in New York was on the 31st floor of this building.](/Images/godic/202501/08/DDC-I_New_York_office_19933859.jpg")
![The DDC International office in Lyngby showed Danish design elements, here seen in 1992.](/Images/godic/202501/08/DDC_International_corridor_19923859.jpg")
DDC-I, Inc. is a privately held company providing software development of real-time operating systems, software development tools, and software services for safety-critical embedded applications, headquartered in Phoenix, Arizona. It was first created in 1985 as the Danish firm DDC International A/S (also known as DDC-I A/S), a commercial outgrowth of Dansk Datamatik Center, a Danish software research and development organization of the 1980s. The American subsidiary was created in 1986. For many years, the firm specialized in language compilers for the programming language Ada. In 2003, the Danish office was closed and all operations moved to the Phoenix location.