You could always put HMFIC!
Seriously, there have been many great comments already.
To add... If this is your first business, you might try this. Make up a few cards using Word or something simple and try out the different titles. Then you and your partner practice on each other, or maybe a close friend or two, and see what makes sense to you.
Nothing like really seeing it in print before going final.
Once you decide what is best, then you can go order your real cards. Saves money this way. Plus it gives you a chance to feel what it will be like.
Also, there may be times when you want different cards for different occasions/purposes. In some cases Co-Owner and President will apply, in others Director of Marketing, etc. may apply. So you might find that having multiple business cards would be beneficial. But if you go this route, make sure you have multiple e-mail addresses so that it makes sense.
Nothing like seeing a business card having the title owner with a
sales@something.com e-mail address!
