When Xcode creates a new file, there's always something like this in the header:
// Copyright 2009 __MyCompanyName__. All rights reserved.
How can I change that?
You can change it in Xcode project File. This is my image for tutorial.
Xcode will try to pull this information from your entry in the system address book - if you can't modify it there, try using this command to override:
defaults write com.apple.xcode PBXCustomTemplateMacroDefinitions '{ ORGANIZATIONNAME = "ORGNAME";}'
As a follow-up to the answer above, for documentation of that and many other preferences see the Xcode defaults reference
As of xcode 3, it will use the "company" field from your Address Book card if the "PBXCustomTemplateMacroDefinitions" key is missing from com.apple.Xcode.plist.
defaults write com.apple.Xcode PBXCustomTemplateMacroDefinitions ' { "ORGANIZATIONNAME" = "javacom"; } '
Entered in Terminal.
来源：https://stackoverflow.com/questions/1132855/how-to-replace-the-company-name-in-the-template-headers-in-xcode