The best way to give an overview of your company is to state concisely your core value proposition: What unique benefit will you provide to what set of customers to address what particular need? Then you can add three or four additional bullet points to clarify your status (launch date, current customers, revenue rate, pipeline, funding needed).
The key objective is to flesh out the foundation you established at the beginning. At this point, no one should have any question about what it is that your company does, or plans to do. The only questions that should remain are the details of how you are going to do it. Another key objective you should have achieved by this point in your presentation is to make sure that if there are some compelling brand names associated with your company (customers, partners, investors, advisors), your audience knows about them.
My friend in Singapore, Varun Arora, did a great job of this when he was interviewed after his launch at Demo. He nailed the Value Proposition question in 10 seconds (0:24 to 0:34)
Question: Tell me a little bit about GoToCamera?
Answer: We enable people to use the cheap USB webcams they already own (The Benefit), to watch over (The Need) their homes, kids, families, pets and small businesses (Customers).