EE has switched on its 300Mb 4G mobile network at Tech City in London, following a £3.6 million infrastructure investment.
This part of the capital was the first area to receive double-speed 4G services when they launched in July 2013, and it has now become the launch pad for ultra-fast mobile services.
Olaf Swantee, Chief Executive of EE, said that by pioneering 4G innovation in the UK, his firm wants to help British businesses "switch on and start up".
"That’s why we’ve partnered with Tech City to deliver super-fast services to some of the UK’s brightest new companies," he stated.
Mr Swantee claimed that 300Mb 4G will give selected digital businesses exclusive access to "groundbreaking technology".
"The 300Mb service will be commercially rolled out in 2014 and means British businesses in Tech City - and across the UK - will be able to steal a march on their competitors in Silicon Valley, Korea and Japan."
Joanna Shields, Chief Executive Officer of Tech City, described EE's 300Mb 4G network as "a game-changing investment".
The availability of super-fast speeds will catalyse the next wave of innovation and creativity in digital, creative and technology businesses, she stated.
"It will allow them to connect to new markets around the world and supports the growth of our brightest and best businesses," Ms Shields added.