
CleverTap, Doxim, Broadridge, Customer.io and a handful of rivals fight over the same quiet job - turning your bank statements, app pings and renewal notices into something you open. Here is how the customer communications business actually works.

Doxim, Intense Technologies, Infobip and Templafy don't make headlines, but they quietly decide how your bank, insurer and phone company talk to you - and the market for that plumbing is racing past $2 billion.