This task comes in two stages which requires using existing data to firstly ensure that the contact details are up-to-date and all contacts are still working where they are listed on the spreadsheet. If they aren't, it will require researching where they have moved to.
The second part will be data sourcing and ensuring that any new contacts are added to the additional tab on the spreadsheet.
A LinkedIn account is required for this job!
Please enquire further for a full brief. It will be required by Friday 20th December.