CSG Systems International(CSGS) - 2023 Q4 - Annual Report

We generate our revenue primarily from the global communications markets; however, we serve an expanding group of customers in markets including retail, financial services, healthcare, insurance, and government entities. Revenue by customer vertical for 2023, 2022, and 2021, as a percentage of our total revenue, was as follows: The following table rolls forward our unbilled accounts receivable from January 1, 2022 to December 31, 2023 (in thousands): | --- | --- | |------------------------------------------ ...