Here's my old id Software business card. Since I did so many things (biz stuff, packaging guidance, exec producing, coding, level design, game design, audio, product mastering, etc.) I just named myself Project Specialist.
Here's our Ideas From The Deep business card that Lane and I created back in 1989. The company is still around now after 17 years! http://www.ifd.com
Here's my Ion Storm business card. All of Ion's corporate identity, game packaging for ALL our games, etc. was designed by Sasha Shor - the same woman who designed the Quake logo, font, packaging, etc.