Recent discussions with members of this community led me to make this post since I´m surprised at how many agencies are neglecting sites like upwork for lead generation and sales. While I believe it to be true that much of the demand is for low cost suppliers, upwork nevertheless has significant demand for quality and professional agencies by now. Well curated upwork pages for your sales people is something I´d consider natural for lead generation. It´s sales hygiene. Yes, you will need to put some time into qualifying your leads but it´s ok considering how easy it is to expose yourself to that sort of demand.
I am not affiliated with upwork in any way. ´Simply posting this as a reminder for what I consider an under-addressed tactic, with many agencies considering themselves to be "too good" for sites like upwork, etc.