Black Dog Bandes Dessinées is a fictional company that publishes games, printed materials and other merchandise using two separate names:
BD has its own 'universe', intended to be internally consistent, in which all its comic book characters live. This allows the various characters to meet up, team up and hear about each other's exploits within the stories.
Black Wolf's roleplaying games are set in a separate (though still internally consistent) universe from the comic books.
To confuse matters, Black Dog publishes some games (including RPGs) based on the Team Remarkable franchise under the BD Comics label, and has launched a darker, noir-style line of comic books set in the Black Wolf universe and published under that label.