Founded in 2001, CELESTE is a leading European B2B digital infrastructure platform, combining proprietary fibre, cloud and cybersecurity capabilities to support the connectivity and digital transformation needs of enterprise customers.

InfraVia invested in CELESTE in 2019, backing an entrepreneurial management team at a pivotal moment for the French B2B telecom market. The ambition was to build on CELESTE’s proprietary infrastructure, growing B2B market, and positive regulatory environment to accelerate its development into a scaled, integrated digital infrastructure provider.

During its ownership, InfraVia worked alongside management to support CELESTE’s transformation from a fibre operator into a one-stop-shop B2B solutions provider across connectivity, telecom, cloud and cybersecurity.

Over this period, CELESTE accelerated the rollout of its fibre network across France, expanded internationally into Switzerland, strengthened its data centre capabilities and developed new offers around cloud and cybersecurity.

This growth was supported by an ambitious consolidation strategy, with strategic acquisitions including Pacwan, Option Service Télécom, Via numérica, Ariane, Stella Telecom, BLHD, Oceanet Technology, Everko, Magic Online and VTX in Switzerland. These transactions significantly strengthened CELESTE’s network footprint, service capabilities and market positioning.

In 2021, CELESTE also secured a €260 million ESG-linked financing package to reinforce its investment capacity and support its next phase of growth.

In 2026, CELESTE served a large and diversified portfolio of blue-chip customers and had established itself as a comprehensive digital partner for enterprises, with an integrated offering spanning connectivity, cloud, cybersecurity and digital services. InfraVia sold CELESTE to CVC DIF, marking the next chapter in the company’s development.