Companies are visible on the Explore page once they've raised $5,000. 

Think about it from the investor's perspective: you're looking for investment opportunities and find a cool-looking company. But, there's a big fat $0 on the profile – they haven't raised any money yet. Would you invest? Or would you wait until a person who actually knows the founder invests first?

So, hop on the phone, tap into your network, and raise $5,000. Once you do, you'll automatically show up on the Explore page with some traction to show potential investors.