Add email addresses to our taxi operator database

We need someone who specialises in web scraping, data mining, finding email addresses, scraping online business directories, Linkedin, Facebook, etc.

We have a database of 2,200 taxi/minicab operators in London and need verified email addresses and additional contact information.

The information we have is:
Name of licence holder
Company name
Business address and postcode
Telephone number

The information we need is:
Email address
Contact 1st name, surname, position
Website page
Facebook page

We need a verified email address for min. 90% of the records and as much of the other information as you’re able to gather.

We have another two similar jobs if all goes well with this one.