Commercial Data Systems, Ltd. (CDS) is a software publisher and technology company based in Emerald Park, Saskatchewan.
In the 1980s, CDS was primarily involved in the production of computer games for 8-bit computers such as the Commodore 64. The best-known and most original of these was Frantic Freddie, which combined fast-paced arcade play with an addictive soundtrack by Kris Hatlelid. Most of their other offerings were either sports simulations or clones of popular arcade games such as Joust (Pegasis) and Frogger (Froggee/Road Toad).
CDS stopped publishing games around 1990. As of the late 1990s, it has shifted its business focus to consulting.
Source: Wikipedia, "Commercial Data Systems", available under the CC-BY-SA License.