Т1

Т1 is a major Russian IT holding company (formerly Technoserv), the largest system integrator by revenue, providing a full range of IT services including implementation, development, and outsourcing of infocommunication infrastructure, information security systems, energy and engineering systems, and enterprise-scale platforms. It serves key economic sectors with high-tech projects and is recognized as Russia's top IT company by RAEX and CNews ratings, with 2024 revenue of 249.6 billion RUB.