You can find a sample business email list in the UK from several sources. One option is to check reputable email list providers like Dun & Bradstreet or InfoUSA. These platforms offer targeted lists based on specific business types and industries. Another option is to use LinkedIn to gather business contacts in the UK. You can manually collect emails or use LinkedIn's paid services for advanced searches. You should always ensure that the email list you use is GDPR compliant. You can also find samples through marketing forums or online communities where members share resources and strategies.