Accurately geo-code addresses

At this link are 67 addresses: <[login to view URL]> I need these addresses and phone numbers in a spreadsheet (in separate columns), along with an accurate Latitude and Longitude, that would allow somebody to travel to the correct building. In some cases you can get this straight from Google Maps, but in others Google Maps can be inaccurate. For example with an address like "Unilever Kenya Limited, P.O Box 30062 -00100 Nairobi Kenya" you need to do some research to find out where exactly the office is. If in some countries you are unable to be confident about the exact location please mark this clearly on the spreadsheet. I will check a random selection of the addresses to make sure you got them right.