1234, Main Street
Boston, MA 02123
<Recipient Address Goes Here>
It seems clear that Abc Company and <other company name> share many of the same goals. And since two companies working together are immeasurably stronger than two companies competing, I’d like to propose a strategic alliance.
I would like to meet with you to discuss combining our efforts to <describe alliance action>. I think that by working together, we could increase market share for both companies and build a very profitable long-term relationship.
If you’re interested in the possibilities, please give me a call at <phone number> as soon as possible. We can arrange a time to sit down and set up what could be a very profitable, enjoyable alliance. I look forward to hearing from you.
encl: <List of enclosed items goes here>