Corporate presentation

I am in need of a professional corporate presentation to use for a variety of different purposes, such as training employees, pitching a product/service, and presenting company achievements. I have a specific theme or style in mind for the presentation, so I'm looking for an experienced designer with creative ability to tailor a presentation to my desired concept. The presentation I require should contain between 10 and 15 slides. Quality is important to me, so I'm looking for someone who can create a polished and comprehensive presentation.