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Vosper and Company of Portsmouth often referred to simply as Vospers, was a British shipbuilding company.
1871 It was established in 1871 by Herbert Edward Vosper, concentrating on ship repair and refitting work.
1894 Catalogue of oil engines and oil launches complete. 
1899 Private company as Vosper & Co. Ltd.
1900 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 early 1930s, the company began to concentrate on high speed naval craft, yachts and power boats, for which they would become renowned.
In 1936 they became listed as a public company, known as Vosper Limited, at which time they opened a second yard in the Portsmouth area.