The investor or sales presentation is not the only thing your audience will check out:
- Do you have a proper email address or are you still using your gmail?
- Is your LinkedIn profile consistent with the claims in the presentation?
- Does your web site have the latest company logo and is free from cheesy stock photos?
If you do not have much to share with the public yet on your web site (you don't have any customers yet, your product is not finished, etc.) it is often better to keep things brief (Coming soon, we are working on [...]) in a really crips and professional look, than padding the page with marketing buzzwords and claiming that your are a Fortune500-like company with 20 offices, delivering flexible and scalable ROI to 100s of clients around the world.
Image from WikiPedia