By the turn of the century, Vosper was prospering as a general-purpose builder of small craft, boilers and marine engines, for which they had made a name for themselves as a producer of reliable designs. In the lean times after World War I, they concentrated mainly on ship repair to survive.
By the turn of the century, Vosper was successful in building various types of craft, boilers, and marine engines, earning them recognition for their reliable designs. After World War I, they shifted their focus to ship repairs to stay afloat during difficult times.