Digital Mars
Digital Mars is a small American software company owned by Walter Bright that makes C and C++ compilers, and associated utilities such as an integrated development environment (IDE) for Windows and DOS, which Digital Mars terms an integrated development and debugging environment (IDDE).[1] They also distribute the compilers for free on their web site.
Over time, the names of these products have changed. The C compiler was first named Datalight C compiler, then Zorland C, then Zortech C, and now Digital Mars C/C++ compiler.[2] The C++ compiler was first named Zortech C++ (the first commercial C++ compiler for Windows), then Symantec C++, and now Digital Mars C++ (DMC++).
The company has gained notice in the software development community for the programming language D which they developed in-house.