It is possible to find BtoB email addresses with Vayne. However you will need to buy email enrichment credits for that : https://www.vayne.io/enrichments

Our enrichment system uses the API of one of the most reliable email finding solution on the market : dropcontact.com

The video below explains in details how to get enrichment credits and how to use them :

https://www.loom.com/share/29e11400b6274a25844a235c22d136ff?sid=e246cd6f-cf7b-4800-866f-c1e6d295ea8b