We can use account filters to narrow down the targeted companies based on the requirement. Post that hit the 'Lead' section and it will display all the contacts of the concerned companies
You can now narrow it down to select the ideal decision makers and use Clay to export.
Yes, it's always safer and better to use email validation tools. We've experienced a few bounces ourselves.
It also depends on the email providers. For example, even when Apollo marks an email as 'Valid,' we've still encountered a lot of bounces
I'm not sure if I understood it correctly, but you can click this option, which will open up lead filters for your selected companies. Here, you can use multiple filters to narrow down the decision-makers.
Let me know if it helps!