There's already something for Corporation, it's an extension for the old Foundation ruleset. The ruleset is pretty much the character sheet only, just stories and maps for GMs. The character sheet has dice rolls on a double-click of the skill total. Click on the skill attribute abbreviation to change the attribute associated with the skill.
From my rulesets folder (linked in the signature):
1) Download the
Foundation PAK file and put into the FG rulesets folder
2) Download the
foundation-Corp EXT file and put into the FG extensions folder.
3) Create a campaign using the foundation ruleset and select the Corporation extension.
It's dated, and a little basic, but it's playable. I've run a couple of games using it myself.