Great answers already.
Some of my tips
1. What techniques got you so far? Can you standardise it
and check it if the same works in the US market
2. Would it be possible to draw up referrrals in the US markets
3. Producing consistent quality content on your website and be aggressive with your solid social media strategy.
4. Check with your digital agency to create "some useful and relevant content" that can go viral in the social media-- specifically USA market
5. Do you have affiliates from the US?
6. What part of the product can be given free as a "Test material" It can even be a "service tips" material Let them have a feel of your product and your service -- in short your brand
7. Can you participate in any trade shows physically or online
8. After creating all of these you could promote and advertise for "Distributors, Affiliate Partners " in that region

I can give a 10 minutes free talk in this regard

Hope it helps
Consultant Bala
vibavam.com