Data Cleaning of Odoo CRM / contacts Database

We have a database of 5,000 - 10,000 contacts whom we have met at various exhibitions.
this database is up to 5 years old and some of the contact will have changed jobs, companies etc.

We use Odoo and ideally you would have the ability to take the information from our database and then upload the clean set of data (we have a test DB where this can be trialed) . this is not a requirement, but a "nice to have" as it will save us time and money

this would be desktop research using Linked in / Facebook or the company concerned's website.

We would like the following information to be updated (there may be more fields of information which we require):
• Check person / company contact details are correct
o Do they work for the same company, If not new company details
Company Name, Address, Tel, Email, Website, Social media feeds
o Job title, up to date emails address
o Up to date company contact details
o Up to date website details
o Tags / Labels correct (so we can segment them in our database for mailings etc.
 Ie. Interior designer, electrical contractor, architect
o Company Logo ?