Which "Melrose Place" company did Billy and Amanda work for?

On Melrose Place, Billy Campbell and Amanda Woodward worked for D&D Advertising. The fictional Los Angeles agency is one of the show’s most important workplaces and connects several of its central characters.

D&D initially employs Alison Parker, Amanda, and Billy. Billy works there while developing his professional life and navigating his relationships with Alison and Amanda, while Amanda’s role at the agency becomes increasingly influential. The workplace provides a setting for the series’ blend of romance, ambition, office rivalry, and scandal.

D&D’s leadership changes repeatedly as characters compete for control. Alison eventually rises to the presidency after receiving recognition for her work, but Amanda later maneuvers back into the top position. The agency also becomes the source of later conflict when Craig Field diverts important clients with Sydney Andrews to a new firm called Sky High Advertising.

Viewers sometimes remember Amanda’s later company, Amanda Woodward Advertising, and accidentally select it. That agency appears much later; the company Billy and Amanda worked for was D&D Advertising.