CELESTE
CELESTE is a French B2B telecom, cloud, and cybersecurity operator serving 20,000+ business customers across France and Switzerland via its proprietary 13,000 km fiber network, four data centers, and 15 regional agencies.
- Company typePrivate
- Founded2001
- HeadquartersChamps-sur-marne, France
- Headcount1–10
- GTM typeB2B
- OfferingServices
What CELESTE does
CELESTE is a French B2B operator providing integrated telecommunications, cloud hosting, and cybersecurity services to enterprise and mid-market customers. Founded in 2001 and headquartered in Champs-sur-Marne, the company owns and operates a 13,000 km proprietary fiber optic network spanning France and Switzerland, four Tier 3/4-certified data centers, and 15 regional agencies (10 France, 5 Switzerland), serving a base of more than 20,000 business customers including Total, Veolia, Somfy, VYV, AXENS Solutions, and UEFA Euro 2024. The company is led by founder and President Nicolas Aubé.
The service portfolio spans dedicated fiber connectivity, MPLS/SD-WAN/VPN, private/hybrid/public cloud, colocation, telephony, UTM firewall, Anti-DDoS, penetration testing, vulnerability scanning, and the Modulo Box modular edge data center. CELESTE monetizes through recurring subscription contracts — primarily multi-year managed-service and infrastructure agreements — with revenue split across three lines: telecom/connectivity, cloud/hosting, and cybersecurity. The company holds ISO 27001, HDS, ISO 26000 (AFNOR), and EU Code of Conduct for Data Centres certifications, is SBTi-validated, and joined Hexatrust in 2026.
Growth has been materially M&A-driven: VTX Telecom (2021) added a Swiss footprint, Oceanet-Technology (2021) deepened managed-cybersecurity capability, and Magic Online (2024) added approximately 20,000 business customers. A €260 million bank-financing package closed in June 2021 with BNP Paribas, BRED Banque Populaire, Caisse d'Epargne, Crédit du Nord, LCL, and Société Générale supports continued organic and inorganic scaling. Strategic vendor partnerships with Fortinet, Netscout, SonicWall, VMware, Microsoft Azure, and AWS underpin the integrated stack.
CELESTE firmographics
Firmographics- Name
- CELESTE
- Legal name
- CELESTE
- Website
- https://celeste.fr
- Company type
- Private
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- CELESTE is a French B2B telecom, cloud, and cybersecurity operator serving 20,000+ business customers across France and Switzerland via its proprietary 13,000 km fiber network, four data centers, and 15 regional agencies.
- Ownership category
- akta.pro rank
CELESTE industry classification
Industry- Product category
- Business Telecommunications and Cloud Services
- NAICS
- Wired and Wireless Telecommunications Carriers (except Satellite) (51711), Wired Telecommunications Carriers (517111), Wired and Wireless Telecommunications (except Satellite) (5171)
- SIC
- Communications Services, Nec (4899), Telephone Communications (No Radiotelephone) (4813), Computer Communications Equipment (3576)
- akta.pro primary industry
- Carrier Ethernet & Wavelength Wholesale (E-Line/E-LAN, OTN, lambda) (HDAIAEAB)
- akta.pro secondary industries
- Service Provider Core Routing (P/Backbone/MPLS) (HDAFABAD), Managed SD‑WAN/SASE Connectivity (Enterprise WAN under Managed Connectivity) (HDAIAGAF), Data Center Networking Services (Switching/Routing/Fabric) (BPAEAEAF), Network Security Services (Firewall/VPN/ZTNA/SASE Integration) (BPAEAEAG), Edge Networking & SD-WAN Integration (SASE/SD-WAN Edge On-ramps) (HDABAGAJ)
Keywords
Where CELESTE is headquartered
LocationHeadquarters
- HQ city
- Champs-sur-marne
- HQ country
- France
- HQ region
- Europe
Offices5 records
Markets served
CELESTE business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Personnel, Technology or R&D, Operations, Marketing or Sales, Supply Chain
Revenue model
- Telecom/Connectivity Services: Recurring subscription-based revenue from fiber optic connectivity, network services, and telecom solutions for businesses
- Cloud and Hosting Services: Revenue from data center hosting, cloud infrastructure, and managed services with recurring subscription billing
- Cybersecurity Services: Managed security services including anti-spam, firewall, and threat protection sold as recurring subscriptions
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Domain names starting at €1.04 HT/month |
| Subscription | Annual | Enterprise connectivity and cloud solutions |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels5 records
CELESTE product offering
Product offeringCore offering
CELESTE is a B2B telecom, cloud and cybersecurity operator that sells dedicated fiber optic connectivity, multi-model cloud services, colocation, managed network security, and IP telephony to businesses across France and Switzerland. The company runs its own 13,000 km fiber network and four ISO 27001- and HDS-certified sovereign data centers, enabling bundled connectivity-plus-cloud-plus-security offerings with data residency guarantees. Its portfolio spans dedicated fiber, MPLS/SD-WAN, private/hybrid/public cloud, colocation, the Modulo Box modular datacenter, UTM firewall, Anti-DDoS, penetration testing, and SIP/Teams telephony.
Product overview
CELESTE is a French telecom operator, cloud, and cybersecurity provider for businesses with its own fiber network (13,000 km) and 4 ISO 27001-certified datacenters. The platform offers integrated telecom services (dedicated fiber, 4G/5G, backup links), network security (VPN/MPLS, SD-WAN, UTM Firewall, Anti-DDoS), hosted IT services (private/hybrid/public cloud, colocation, disaster recovery), and cybersecurity (penetration testing, vulnerability scanning, DevSecOps). The Modulo Box product is a modular, portable datacenter deployable on customer sites in weeks. Key offerings include Fibre Optique Dédiée for dedicated internet access, Cloud Privé/Hybride/Public for various cloud deployment models, Réseaux VPN MPLS and SD-WAN for multi-site connectivity, UTM Firewall and Anti-DDoS for security, Cloud PRA/PCA for business continuity, Test d'Intrusion and Scan de Vulnérabilités for security assessment, Téléphonie Cloud, Trunk SIP, and Téléphonie Teams for communications, Colocation Datacenter for housing, and the Modulo Box for modular infrastructure.
Differentiator
Problem solved
Functional benefit
Products and services
- Fibre Optique Dédiée Dedicated fiber optic internet access with guaranteed bandwidth and 99.9% SLA, with an optional 4G backup and an Express delivery option enabling deployment in under 10 business days. Sold to enterprises and public-sector customers that need guaranteed throughput and rapid installation.
- Cloud Privé Dedicated private cloud infrastructure hosted in CELESTE's ISO 27001- and HDS-certified French datacenters, providing complete data isolation and sovereignty for regulated and security-sensitive workloads.
- Cloud Hybride Hybrid cloud solution combining CELESTE's private infrastructure with Microsoft Azure and AWS public clouds, enabling flexible workload distribution and cloudbursting for enterprises.
- Cloud Public Public cloud services integrated with major hyperscaler providers, sold with CELESTE managed services and support so enterprises can adopt public-cloud capacity while keeping a single accountable operator.
- Réseaux VPN MPLS Private VPN and MPLS network solutions for secure multi-site interconnection, connecting distributed enterprise locations with dedicated, encrypted connectivity.
- Réseaux SD-WAN Software-defined WAN solution providing intelligent traffic routing across multiple connections, dynamic path selection and centralized network management for multi-site enterprises.
- UTM Firewall et Routeurs Sécurisés Unified Threat Management firewalls and secure routers providing integrated firewalling, intrusion prevention, and content filtering for enterprise networks.
- Anti-DDoS Distributed denial-of-service protection powered by Netscout, delivering real-time threat detection and mitigation to safeguard enterprise infrastructure.
- Cloud PRA / PCA Business Continuity and Disaster Recovery (BC/DR) cloud solution enabling data replication between CELESTE datacenters with reduced Recovery Time Objective for rapid service restoration.
- Test d'Intrusion (Pentest) Penetration testing service that identifies and evaluates security vulnerabilities in enterprise systems and networks, performed by CELESTE security professionals.
- Scan de Vulnérabilités Automated vulnerability scanning service that continuously assesses and identifies security weaknesses across enterprise IT infrastructure.
- Téléphonie Cloud (Centrex IP) Cloud-hosted IP telephony (Centrex) providing enterprise-grade voice services with features such as auto-attendant, call routing and unified communications.
- Trunk SIP SIP trunking service that connects existing enterprise PBX systems to the PSTN over IP, delivering scalable voice connectivity with cost savings.
- Téléphonie Teams Microsoft Teams-integrated telephony solution enabling direct calling capabilities within the Teams interface, combining unified communications and enterprise telephony.
- Colocation Datacenter Datacenter colocation service providing dedicated server racks in CELESTE's certified facilities (ISO 27001, HDS) with a 4-hour guaranteed time to repair and 99.99% availability SLA.
- Modulo Box (Datacenter Modulaire) Compact modular datacenter deployable on customer premises in weeks. Available in three formats (6i, 8i, 12i) accommodating 3-36 server racks, with PUE below 1.2, ISO 27001 and HDS certifications, and 100% renewable energy power.
- Compte Internet Sécurisé All-in-one secure internet account bundling internet connectivity, cybersecurity, cloud and telephony into a single integrated offering for small and medium enterprises.
Quantifiable outcome
- 99.99% uptime SLA achievable for enterprise customers
- +1 more outcomes
Companies that use CELESTE
Customer profileNamed customers7 records
Segments8 records
Ideal customer profiles6 records
CELESTE technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature3 records
CELESTE partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and minor.
- FortinetcoreTechnology partnership integrating Fortinet cybersecurity solutions (firewall, threat protection) into CELESTE's managed security offerings. Visible as partner logo on website indicating active integration and resale relationship.
- NetscoutcoreTechnology integration partner for network performance monitoring and security analytics solutions. Netscout technology enhances CELESTE's network visibility and threat detection capabilities.
- Microsoft AzurecoreCloud partnership providing Azure integration and cloud migration services. CELESTE offers Azure-based solutions as part of its hybrid cloud portfolio.
- VMwarecoreTechnology partner with VMware Zero Carbon Committed certification. CELESTE leverages VMware virtualization and cloud infrastructure technologies for its data center services.
- AWS (Amazon Web Services)coreCloud partnership enabling AWS integration and co-sell relationships. CELESTE provides connectivity and migration services for AWS workloads.
- SonicwallcoreCybersecurity technology partner for firewall and network security solutions. Sonicwall products are integrated into CELESTE's managed security service offerings.
- HexatrustcoreCELESTE is a member of Hexatrust, a French cybersecurity association bringing together trusted vendors for government and enterprise customers. Provides access to public sector procurement frameworks.
- GSMA Foundry/ESAminorParticipation in GSMA Foundry/ESA initiative for NTN (Non-Terrestrial Network) and 6G showcase, demonstrating involvement in next-generation network technology development.
- RIPE NCCminorRIPE NCC member for IP address allocation and internet registry services, required for operating network infrastructure and autonomous system numbers.
Scale indicators5 records
Recent moves6 records
Expansion highlights5 records
CELESTE competitors and assessment
Company assessmentDirect peers
- Adista: Adista is a French B2B operator offering fiber, cloud hosting, managed networks, and cybersecurity to PME/ETI/grand compte — the closest 1:1 analog to CELESTE's full-stack model, including its own infrastructure and HDS/ISO certifications.
- Hub One: Hub One is a French B2B telecom, cloud, and cybersecurity operator (Aéroports de Lyon subsidiary) serving enterprise and public-sector customers with similar MPLS/SD-WAN, cloud, and managed security offerings.
- Waycom: Waycom is a French B2B telecom and cloud integrator focused on mid-market enterprises, offering dedicated fiber, SD-WAN, and cloud services comparable to CELESTE's PME/ETI positioning.
- Colt Technology Services: Colt is a European B2B fiber operator with owned pan-European network and enterprise cloud connectivity services, competing head-to-head with CELESTE on dedicated wavelengths, Ethernet, and SD-WAN in France and Switzerland.
- Eurofiber: Eurofiber owns and operates an open digital infrastructure (fiber and datacenters) across the Netherlands, Belgium, Germany, and France, providing wholesale and enterprise connectivity services that overlap directly with CELESTE's owned-fiber business model.
Broad incumbents
- Orange Business Services: Orange Business is the enterprise arm of Orange, offering a much broader portfolio of connectivity, cloud, IoT, and cybersecurity across global markets. It is the dominant incumbent competitor to CELESTE in the French grand compte segment.
- Bouygues Telecom Entreprises: Bouygues Telecom's enterprise division provides fiber, mobile, cloud, and cybersecurity to French businesses of all sizes, competing with CELESTE on dedicated fiber and bundled offers while leveraging much greater scale and brand recognition.
- Swisscom: Swisscom is the incumbent Swiss telecom operator providing enterprise connectivity, cloud, and security services across Switzerland — directly competing with CELESTE.CH in the Swiss mid-market and enterprise segments.
- SFR Business (Altice): SFR Business, part of Altice France, offers fixed, mobile, cloud, and security services to French enterprises and competes with CELESTE across the SME and mid-market segments.
Emerging players
- NBS System: NBS System is CELESTE's wholly-owned cybersecurity subsidiary, but prior to the acquisition it operated as a standalone French MSSP specializing in managed security, pentesting, and SOC services — comparable to CELESTE's cybersecurity arm and useful as a peer benchmark for the security P&L.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
CELESTE social profiles
Digital presenceCELESTE compliance and trust
Trust signalCompliance9 records
CELESTE financial estimates
Financial estimateRevenue estimate
Valuation estimate
CELESTE leadership team
Management profileNumber of profiles
Profiles5 records
CELESTE subsidiaries and ownership
Company hierarchySubsidiaries5 records
CELESTE funding detail
Funding detailFunding overview
Funding rounds2 records
Investors7 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CELESTE M&A and investment
M&A and investmentM&A2 records
Investments1 record
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about CELESTE
What does CELESTE do?
CELESTE is a B2B telecom, cloud and cybersecurity operator that sells dedicated fiber optic connectivity, multi-model cloud services, colocation, managed network security, and IP telephony to businesses across France and Switzerland. The company runs its own 13,000 km fiber network and four ISO 27001- and HDS-certified sovereign data centers, enabling bundled connectivity-plus-cloud-plus-security offerings with data residency guarantees. Its portfolio spans dedicated fiber, MPLS/SD-WAN, private/hybrid/public cloud, colocation, the Modulo Box modular datacenter, UTM firewall, Anti-DDoS, penetration testing, and SIP/Teams telephony.
Is CELESTE a public or private company?
CELESTE is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was CELESTE founded?
CELESTE was founded in 2001. It employs 1 to 10 people.
Where is CELESTE based?
CELESTE is headquartered in Champs-sur-marne, France, in the Europe region.
How does CELESTE make money?
Three revenue lines are on record. Telecom/Connectivity Services are the primary driver. The others are cloud and Hosting Services and cybersecurity Services.
Who are CELESTE's main competitors?
Direct peers on record are Adista, Hub One, Waycom, Colt Technology Services and Eurofiber. Broad incumbents are Orange Business Services, Bouygues Telecom Entreprises, Swisscom and SFR Business (Altice). NBS System is listed as an emerging player.
Does CELESTE have an API?
No public API is recorded for CELESTE.
What industry is CELESTE in?
CELESTE's product category is Business Telecommunications and Cloud Services. Its primary akta.pro industry code is HDAIAEAB, Carrier Ethernet & Wavelength Wholesale (E-Line/E-LAN, OTN, lambda), with a secondary code of HDAFABAD, Service Provider Core Routing (P/Backbone/MPLS). Its NAICS code is 51711 and its SIC code is 4899.