Ask the freelancers at your company how they got the job. It's probably through some agency, probably more than one, if your company hires a few freelancers. T

Ask the freelancers at your company how they got the job. It's probably through some agency, probably more than one, if your company hires a few freelancers. Then contact those agencies. Don't ask the freelancers at your company to get a direct contact, they probably have clause in their contract that forbids them to poach employees of their customers.