You can brand your presentation with a corporate logo. It will appear large on the first page of the presentation, and tiny on the bottom right of each subsequent page.
Why tiny? The audience does not have to be reminded of who is presenting on every page of the presentation. Big logos, legal disclaimers, page numbers, are all visual clutter that distract the audience from looking at the really important content on your slide.
The best way to create a recognisable look and feel of your slide is the correct use of the accent color. If this is the dominant color in your corporate language, your slides will fit your company's look and feel perfectly.