Earlier quoted context omitted.
In other countries they'd just be called recruiting agencies (they can do either permanent or contract jobs). He's referring to contracting, where you work for one client at a time, almost identical to like an employee would but for the duration limit (and likely a company in between you and them to solidly the facade). In contrast to what most people would call freelance, where you work for multiple clients at the s…
Yeah, sorry. I got contractor and freelancer mixed up. It doesn't help that in Sweden freelancer/contractor/consultant are used interchangably for someone who invoices for their time instead of getting a salary. The contracting agencies don't do any permanent position, they only do medium-to-long term contracts (3-24 months). The biggest is Northern Europe is probably https://www.verama.com/ (ex E-Work)
Even gets used for fixed term employees.