European Digital Marketing Agencies Email List

I'm in search of a comprehensive email list of digital marketing agencies throughout the entire European continent. The list's primary use will be to establish potential partnerships. The specific size of the list wasn't initially decided, so freelancers who could offer flexibility and scalability in their sourcing methods will be highly regarded. Ideal candidates for this project should have experience in data mining, lead generation, and must have a deep understanding of the digital marketing industry in Europe. Proficiency in English and any major European language is a plus.