Alcatel-Lucent Enterprise (ALE) supplies networking and communications solutions for businesses and institutions. Its range includes OmniSwitch switches for campus and industrial networks, Stellar Wi-Fi, network management with OmniVista, Private 5G, SD-WAN and SASE, and communications platforms such as the Rainbow cloud platform and OmniPCX Enterprise. According to the company, you can deploy the solutions in the cloud, on premises or in a hybrid setup.
ALE is headquartered in France. According to Wikipedia, the company was acquired in 2014 by China Huaxin Post and Telecom Technologies of China; ALE itself refers to a strategic partnership with China Huaxin. The ultimate owner is therefore outside the EU, in China, and Chinese jurisdiction applies to it. The website does not state where data is hosted and says nothing about open source. For European organisations, the equipment and software can run under their own control, while for cloud components such as Rainbow the hosting location needs to be checked separately.