CELESTE

TelecommunicationsÎle-de-france, France501-1000 Employees

CELESTE is a French telecom operator serving businesses with high-performance fiber optic connectivity, cloud services, and cybersecurity solutions. The company maintains a privately owned network spanning more than 12,000 kilometers across France and Switzerland, enabling fast, secure, and reliable connections. It operates three eco-friendly data centers that are certified ISO 27001 and HDS, offering robust data protection for clients. CELESTE employs about 700 experts, has 15 regional offices, and supports over 20,000 businesses, with its base located in Champs-sur-Marne, Île-de-France at 20 Rue Albert Einstein. Through its Swiss subsidiary, VTX Telecom, CELESTE extends its services beyond France and strengthens its European footprint. In March 2026 the company joined Hexatrust, an alliance focused on cybersecurity and trusted cloud.

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