By the age of 20, he was managing theatres for Richard D'Oyly Carte.
In 1885, Edwardes became a manager at the Gaiety Theatre with John Hollingshead, who soon retired.
For the next three decades, Edwardes ruled a theatrical empire including the Gaiety, Daly's Theatre, the Adelphi Theatre and others, and sent touring companies around Britain and abroad.
In the early 1890s, Edwardes recognised the changing tastes of musical theatre audiences and led the movement away from burlesque and comic opera to Edwardian musical comedy.