CSG provides SaaS software and services that help organizations engage customers, manage billing, and process payments. Its solutions support complex business models, from enterprise and consumer billing to subscriptions, revenue management, partner settlements, and quote-to-cash workflows. Products include CSG ACP, Ascendon, Encompass, and Xponent, alongside tools for pricing, order management, customer communications, journey analytics, and field service management.

For payments, CSG offers embedded payment capabilities, merchant services, acquiring and processing, payment gateway orchestration, payouts, and fraud and risk management. Its network solutions support 5G monetization, messaging, policy control, mediation, activation, and eSIM management. The company also provides wholesale and partner management software and network performance testing.

CSG serves organizations across telecommunications, cable and broadband, financial services, banking, healthcare, insurance, government, retail, utilities, media, and other industries. Its offerings are designed for teams spanning IT, billing operations, marketing, customer experience, contact centers, finance, and digital transformation. CSG also provides consulting, managed services, training, integrations, and resources to help customers implement and operate its solutions.