First of all, you have to prepare an outline of your speech. You can make the outline in points containing the start, middle and end of your speech. It is extremely important to make the outline because it helps you to split your content and to manage your time well. In the start, you have to mention the points which will explain the vision and mission of your business which will help you in creating a focal point. Then, in the middle, you have to identify the ways with which you are going to deliver your basic message. Finally, in the end, you have to make an outline of recommendations (suggestions) relating to a particular problem which is needed to be addressed.
After making an outline, you must start writing your speech. While writing, you must include all the references of the sources from where you have taken any content or idea. Moreover, you also have to provide the sources from where you have taken any facts and figures in order to authenticate your research. You have to be professional in your writing, but you can include humour in your speech which will help you to make your colleagues comfortable and attentive.
You can also prepare a visual presentation which will improve your interaction with your colleagues. You should not use colours which are too bright in your presentation. You have to include the core points of your business speech in your presentation, especially the facts and figures.
You should use powerful and influential language in the conclusion of your business speech. If you are presenting visually, you must include the related images in your presentation so as to make it more attractive.