The United States is becoming an increasingly popular target for "destination weddings" — no, not couples but — foreign companies hitching up with America in terms of new investment.

They are drawn in by what can be described as America's "new competitiveness," which is the theme of this year's SelectUSA Investment Summit, conference organized by the Department of Commerce that aims to connect investors with economic-development organizations to facilitate investing in the U.S. The prospect of tying the knot and putting down roots in the U.S. is proving a strong draw for 1,200 corporate leaders and development officials from around the world. Indeed, demand was so strong that conference registration was closed before it even began: 1,400 people were turned away for lack of space.