Many U.S. companies have established in the UK because, among others, they access to a large pool of qualified employees from other EU countries. According to EU legislation, EU citizens are largely free to pursue employment opportunities in any EU country, including the UK. If the UK leaves the EU, this will likely no longer be the case. While EU citizens currently employed in the UK may be permitted to remain in the country, further migration of EU citizens will be subject to serious restrictions. Accordingly, U.S. businesses – including law firms – may experience a shortage of talent from other EU countries.