Excluding IP Addresses

I would like to exclude IP addresses from the Site Stats of my wordpress site. Blog url: https://blog.starbase.co.uk

I manage my company blog. As several internal staff members access the blog as well as our IT developers, I need to exclude their IP addresses from the site stats. I need to exclude the any staff addresses so that it does not skew the overall site stats.

I have read that once each user has a login address they will not be tracked as long as they’re logged in. But as our organisation is quite large it would be difficult to ensure that everyone has a address and is logged in everytime they access the blog…

Hope this makes sense