Looking for Contact Identification Service for 5000 Companies

Hi all, I'm looking for a service provider who can identify relevant contacts across 5000 companies (globally). I can supply the company URLs, and a list of job titles that are relevant. I'm looking for someone who's built an automated workflow that checks lots of databases (I can't find a single database that has good data for all parts of the world). I need email addresses, phone numbers, LinkedIn profiles (bonus: how long in the job + previous employer + conference attendance history + social accounts + social post history). Would supply the data as a CSV and be looking to get a CSV file back. Would probably be looking to repeat this once a quarter, so preferred supplier would be someone who charges less to run the whole thing again in Q3/Q4. Does anyone have any recommendations or provide this service?