Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 131,537 pages of information and 209,008 images on early companies, their products and the people who designed and built them.
Premier Motor Co of Birmingham
1906 Produced four and six cylinder cars made in Belgium and sold under the Premier name. 
Premo was a motorcycle produced in 1909, by the Premier Motor Co. This was the name used by the company for the two-stroke Rex model they sold.
They used the Premo name until late in 1909, when an injunction was taken out against them by the Premier Cycle Co of Coventry. They then became PMC. There was never any connection between the two firms.
1906-1907 Produced an automobile of their own design
1912-1913 Produced the Motorette automobile