How can an international startup raise US venture capital?

There is a viable business play in acquiring Australian startups and then relocating them in US for higher multiplier. However, unless you have a significant differentiator or enough traction, the investors in US have more than enough choices in their own backyard. Preparing for investment is no different from than in Australia, there are many incubators/accelerators etc that provide pitching clinics or consultancy services. Face meetings are important as investors like to judge the character of the founder, see the book Think Fast & Slow (on gut instinct). Another route is to go to Asia first ... see CarbonTracker which is a finalist at the TechVentures 2015 event in Singapore.