For example, there's a European Company Statute under the 28th regime that makes it simpler to set up public limited liability companies in the EU.
The likes of Stripe CEO Patrick Collison and Wise co-founder Taavet Hinrikus are among the startup founders looking to set up a new entity under the 28th regime, called "EU Inc."
"Europe is a fragmented place, and what you want to do is [to] be able to hire across any country," Luke Pappas, a London-based partner for venture capital firm NEA, told CNBC in an interview on the sidelines of Techarena.