One thing I would keep in mind is the terminology you used "business partner". It can be quite easy for a programmer (I'm one too and have been guilty of this) to get focused on the product and code without focusing on the business. You don't want to have to regularly steer a programmer into considering the business implications of decisions, it is best if they already have that mindset.
You didn't mention what skills you have and what you do bring to the table. So it is difficult to make recommendations on coders.
Top of the list also has to be somebody who ships. You'll maybe want to focus on those who have shipped without being prodded/paid. Do they participate in open source projects, or have they launched a project of their own? This shows that they'll take th initiative as a business partner.