Clutch

Clutch ranks B2B service providers — agencies, development shops and consultancies — using verified client reviews collected through interviews, which carry more weight with buyers than open reviews.

Creating a profile requires an account and goes through verification; paid options exist for higher placement. Link type and traffic are undocumented.

This is a services listing, not a product one. If you sell software rather than services, most of the platform will not apply to you.