CSG Email Format

Software DevelopmentColorado, United States5001-10000 Employees

CSG develops software focused on customer engagement, revenue management, and payments, aiming to improve ordinary interactions into more meaningful experiences. Its cloud-first architecture supports organizations in launching digital services, expanding into new markets, and creating dynamic customer experiences that drive loyalty. Headquartered in Englewood, Colorado, the company has operated for more than four decades and employs thousands of people across more than 20 countries.

CSG serves global brands in telecommunications, retail, financial services, and healthcare, providing technologies that address the challenges of delivering digital-era experiences. Its customer base includes well over 900 organizations across more than 120 countries. In May 2026, NEC Corporation announced it would acquire CSG Systems International, with closing expected to follow regulatory approval.

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