LinkedIn Ads has a feature called “Matched Audiences”. With this feature, you can utilise data you already have in order to build strong, conversion-based retargeting campaigns.
Matched Audiences can be created with the following:
Uploading a CSV of company names allows the targeting of decision-makers to build account-based marketing (ABM) campaigns.
Target users who have interacted with your website earlier and re-engage them for improving conversions.
Uploading a CSV of the email addresses from your connections enables you to nurture your leads and prospects even further.