Public Joint Stock Company Group of Companies TNS energo PJSC Group of Companies TNS energo operates as an independent energy supply company in Russia, focusing on the purchase, sale, and distribution of electric power on wholesale and retail markets; wholesale supply of electricity to large industrial enterprises; construction and installation of electricity meters; development of automated electric power information and measuring systems; optimization of energy consumption; consulting services on pricing and financial cost reduction; diagnostics, repair, replacement, and testing of measuring instruments; energy saving measures; and commercial accounting services. The company serves approximately 20 million consumers through 381 consumer service points across 11 regions, including Voronezh, Nizhny Novgorod, Rostov-na-Donu, Yaroslavl, Penza, and Mari El, with operations managed via subsidiaries such as PJSC TNS energo Voronezh, PJSC TNS energo Nizhny Novgorod, PJSC TNS energo Rostov-na-Donu, PJSC TNS energo Yaroslavl, and others. Founded in 2003 as Transneftservis S LLC and headquartered at Nastasyinsky Lane 4/1 in Moscow, Russia, the company functions as a subsidiary of Sunflake Limited and targets industrial enterprises, retail consumers, and wholesale market participants in the electric utilities sector. Recent developments include strong financial performance among subsidiaries, such as TNS energo Nizhny Novgorod reporting net profit of 4.22 billion RUB under RAS for 2024, up fifteenfold year-over-year, alongside historical expansions through acquisitions like additional stakes in Marienergosbyt and Nizhny Novgorod Power Sale Company, and ongoing regional consolidations to strengthen its position in Russia's energy market.