Email list and contact database of 300k+
For the past 6 years I have owned and operated my own media and promotional business... 2 years ago I began doing some lead generations on behalf of a few associated brands. I have amassed an email contact list close to 330k (health and wellness, music and entertainment, financial services). I know that there are other businesses that would find my database useful but I'm unsure as to reach out to them. I built this database myself... these leads were not purchased and is comprised of mostly customers and about 5k publications and websites. Any advise?