Billionaire Masayoshi Son, chairman and chief executive officer of SoftBank Group Corp., speaks in front of a screen displaying the ARM Holdings logo during a news conference in Tokyo on July 28, 2016.
Tomohiro Ohsumi | Bloomberg | Getty Images
The U.K. may be a great place to build a tech company — but when it comes to taking the crucial step of floating your business, the picture isn’t so rosy.
That’s the lesson several high-growth tech…