The present application relates to immunogenic compositions comprising a mixture of staphylococcal antigens which combines antigen having different functions, for instance, combinations including a staphylococcal extracellular component binding protein and a staphylococcal transporter protein or a staphylococcal extracellular component binding protein and a staphylococcal regulator of virulence or toxin or a staphylococcal transporter protein and a staphylococcal regulator of virulence or toxin. Vaccines, methods of treatment, uses of and processes to make a staphylococcal vaccine are also described.