But the connections that come from being in an area where people are thinking along the same lines are important for businesses.
“The concept of the office will always exist,” he says. “People are sociable animals. But being around like-minded people is huge.
“Take Silicon Valley. Whenever you go into a bar or a cafe, you hear people talking about tech.”
Huddle have started a drinks night, external in London to try and bring the same level of confluence between venture capitalists, coders, ideas people and so on.
And Mr Mitchell insists that the office was opened because 50% of its customers are in the US and they needed support in their own timezone.
Easier abroad
Outsourcing used to be big companies transferring work to much cheaper offshore specialists across the world.
Start-ups today can build global organisations from day one. Kulveer Taggar graduated from Oxford and worked as an investment banker in London before moving to Silicon Valley.
His start-up, auctomatic.com, was sold to Live Current Media and he worked on a fantasy cricket game that was at one point making $30,000 a month.
Chance meetings with Facebook executives, external are why he came to California in 2007.
“It’s true you can start your business anywhere but when you really want to grow it, the Valley is a great place to be,” the 27-year-old says.
“It’s the density of talent there, both in terms of investors, advisors, employees and even acquirers.”
“I ran my start-up in England for about two years before moving to the Valley, and it really was a struggle,” he adds.