At this stage we have a good understanding of
We now need to consolidate this information to determine what it is we should do "on Monday morning" and how to prioritise our planned activities.
Let's start with the list of the customer types and the individual customers we might have analysed, as in this sample

It's a simple enough task to count the various benefits that we've already identified for each customer type and customer. The result might look something like this:

There are some comments that need to made about this diagram:
Firstly, the consideration of a particular customer type (say OEM) is separate from the individual customers who may belong to that type (Best OEM, Another OEM etc.) Hence, the count of benefits at Type level is not the sum or average of the individual counts.
Secondly, while increasing Customer numbers can apply as a benefit to a customer type, it does not make sense when applied to individual customers. There's only one Strategic OEM Inc., and no amount of e-Business functionality can clone that particular customer!
Thirdly, I'm using Excel's conditional formatting, to visually highlight the maximum value in each column.
Presumably your business is like most others: In line with the 80:20 rule, some customer types - or individual customers - are more important than others. We can apply weightings accordingly, to reflect their importance to the business. Similarly, you might like to apply weightings to the individual benefits. For instance, you might consider cost savings to be really important - if only because they go directly to the bottom line, or new customers to be more valuable than orders. We can extend the model to reflect these niceities and calculate Weighted Benefits as shown below (Benefit_Count*Customer(Type)_Weighting*Benefit_Weighting)

Our consolidation process gives us the following table (click for a larger image, if you want to see the detail - I just want to talk about the trends that can be identified)
In our sample consolidation - and remember that this is just a sample, we can identify some strong messages:
But business benefits (unfortunately) just don't appear out of thin air - we need to do something to make them happen. It's time to start defining projects!