Market caps of Russian examples from above:
Sber: $84 bn - https://companiesmarketcap.com/sberbank/marketcap/
Yandex: RUB 1327B (~= $17 bn) - https://tradingeconomics.com/yndx:rm:market-capitalization
VK: RUB 176.7B (~= $2.3 bn) - https://smart-lab.ru/q/VKCO/MSFO/market_cap/en/
Ozon: $8.9 bn - https://companiesmarketcap.com/ozon/marketcap/
Market caps of bigger EU tech firms:
ASML: $533.84 B Siemens: $223.14 B SAP: $202.96 B Seagate Technology: $164.43 B