In fact, it's grown 72 per cent, across the transport and storage sector, since 2010.
The gig economy, driven by casual work, has become hugely popular in London, according to analysis by the New Economics Foundation, which used ONS business population estimates.
Often workers in the gig economy use apps to find customers seeking delivery services or odd jobs here and there.
The growth across the nation in the overall number of "non-employing businesses" was 28 per cent, but for London's transport and delivery sector the increase was considerably steeper.
Marc Stears, chief executive at the foundation, warned that developments in Britain's gig economy were a concern for the entire labour market:
Workers in the UK already feel among the highest sense of job insecurity of any in Europe and work among the longest hours.
Yet we have built a labour market that systematically strips all of us of control.
A growing gig economy means thousands more people without the security of a regular wage, a pension or full employment rights.
The Office for Budget Responsibility (OBR) predicts that in 2020/21 the rise of the gig economy will hit the Treasury's tax intake, to the tune of £3.5bn. Chancellor Philip Hammond said the tax system "needs to keep pace" with technological progress.
The highly publicised Uber case over whether its drivers were self-employed or entitled to workers' rights, along with moves by Deliveroo and CitySprint couriers to seek workers' rights, have led to scrutiny over the gig economy and debate over balancing people's wish for flexible working arrangements with security.
The foundation's report said that "flexibility is valuable to many of these workers, but flexibility and high working standards are not mutually exclusive".