Comprehensive Data Compilation

I'm looking for a freelancer who can help me compile detailed information about companies and products. I haven't provided specific details as to what this includes, but I expect the freelancer to have research skills and be able to gather relevant and up-to-date information.

The sources of information might vary and I'm open to suggestions on where to find valuable data. I'm especially interested in having a detailed compilation of companies, including names, locations, and contact details.