Add Google Analytics JS file to every page We use Google Analytics on each of our sites for our own reporting. We have implemented GA using the Google Analytics module, and everything works as expected. 

However, I'm also part of a large organization that wants to start collecting analytics (using GA) on all of its sites. I've been given a .js file that I just need to add to the head of every page.

Should this be added in each site's theme or added to the GA module somehow?

Thanks for taking the time to look...
When I have been in this situation, I use the GA module, look at the JS file that the organization give me, and then update the Code snippet (before) and or Code snippet (after) under the Advanced Settings => Custom Javascript code tab on admin/config/system/googleanalytics as needed.