
Oracle, Precisely, Twilio, Doxee, Docmosis and Solimar Systems run a multi-billion-dollar industry called customer communications management. You have never heard of it, and it has touched almost everything in your mailbox.

Every bill, statement and policy letter you receive runs through software almost nobody talks about. OpenText, Broadridge, Doxee and Cincom are racing to own it - and the market is heading past $5 billion.