Please ensure your one pager captures these key pieces:
A Succinct "140 character description" of your Company that ideally focuses on business impact or pain solved (as opposed to technology)*
A Visual Rendering of Your Offering (A Visual that captures your product, the vision of your product, or an architecture drawing). Visual One Pagers are SIGNIFICANTLY more effective than text
Your Vision Should Be Captured by the One Pager
Lineage of where you / the team come from
Good examples of this are MobileSpan and Appthority. With more examples here.
*Note: Your description should be high level, very concise and fit within a single page. It should not be overloaded. Simplicity is rewarded.