The phrase "freelance sector" is correct and usable in written English.
It can be used in situations where you are discussing the industry or market of freelance work. Here is an example: "The freelancing sector has seen significant growth in recent years, with more and more people opting for flexible work arrangements."
Since its wider launch in 2008, however, the company says that it's seen a slightly different market emerge whereby the site, which claims a community of 40,000 freelancers, is appealing to home-workers and 'moonlighters' offering of a range of services, not just those found in traditional freelance sectors like IT.
The company is not yet profitable but he says it sees the freelancing sector (which it calls the "gig economy") as "a multi-billion dollar market opportunity".
She was also a renowned teacher and a tireless advocate for the independent dance sector – the world of freelance dancers and choreographers working outside established institutions.
But it's also tricky to find numbers here, due to a dearth of data on freelancing as a sector.
Evidence points to the fact that the independent working sector is growing incredibly fast, heading towards five million self-employed in the UK, of which nearly three million class themselves as freelance.
"Any time you have people who work in the public trust who can freelance and get private-sector money for doing private-sector things, you're going to get intellectual corruption," says Strange.
FrankWork was founded by Lance Sanders, who got the idea for the platform having been a freelancer and having managed freelance resources for the entertainment sector in LA.
Kasia Beresford has a diploma in public service interpreting and has worked freelance across the public sector, specialising in Polish, for the last six years.
Huntswood supplies its client, the financial services sector, with freelance contractors to handle a series of customer-focused services such as complaints handling.
