Cloud and on-premise managed services provider, 24/7
We operate and monitor your cloud and on-premise infrastructures, with cover ranging from business hours to 24/7 on-call depending on how critical your services are. Continuity, security and performance, managed through SLAs and measurable indicators.
Cover up to 24/7
Contractual SLAs
Cloud and on-premise
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What are IT managed services?
Managed services mean entrusting the day-to-day operation of all or part of your information system to an external provider. Where monitoring alone is limited to watching and alerting, a managed services provider takes on the full lifecycle:
- Monitoring, incident handling and updates
- Backups, governance and regular reporting
- All governed by a contract and defined service levels
Cloud and on-premise managed services
Our services cover the entire RUN lifecycle of your infrastructures, with a scope defined around your needs and backed by clear commitments.
Monitoring and service levels
Continuous monitoring of your environments, servers, networks and backups, during business hours, extended hours or 24/7 on-call depending on how critical the covered services are.
Incident management
Incident qualification and resolution by criticality, with team coordination and SLA compliance.
Security and patching
System updates, traffic and firewall monitoring, access control and enforcement of security policies.
RUN governance
Operational governance to sustain service quality over time: RACI, runbooks, steering committees and KPI tracking.
Backup and disaster recovery
Backup monitoring, regular restore testing and management of recovery plans to guarantee continuity in the event of a major incident.
FinOps and reporting
Cost and capacity analysis, clear reporting and continuous optimisation recommendations.
Explore our FinOps consulting/ Our managed services methodology
Our RUN approach relies on proven processes, a clear allocation of roles and continuous management. Every engagement begins with precise scoping, to ensure stable, secure and scalable operations.
Scoping and onboarding
Analysis of the existing infrastructure, definition of the scope and expected level of cover, documentation handover and setup of access, tools and processes.
RUN activation
Monitoring deployment, alert configuration, backup integration and activation of incident and change processes.
Operations and support, up to 24/7
Monitoring, incident handling, technical support and coordination with your teams or vendors, within the window agreed at scoping: business hours, extended hours or 24/7 on-call for critical services.
Management and reporting
Tracking of key indicators, regular reporting, performance and cost analysis, with committees to adjust the arrangement.
Continuous optimisation
Architecture optimisation, security hardening and scope adjustment based on lessons learned and changing needs.
Managed services, monitoring or staff augmentation: which to choose?
Three models that are often confused but answer different needs. The right choice depends on what you want to delegate and the level of commitment you expect.
Monitoring only
We watch and we alert, your teams act. Relevant when you have an in-house operations team but no monitoring tooling.
Managed services
We take on operations in full, with contractual commitments. Relevant when you want to delegate the RUN and have a partner accountable for the result.
Staff augmentation
We place experts within your teams, under your management. Relevant for strengthening in-house capacity without transferring operational responsibility.
Explore IT staff augmentation
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How to choose your managed services provider
Five criteria separate a contract that holds from one that degrades after a year:
- Scope: does it explicitly cover both your cloud environments and your physical servers?
- Commitments: quantified SLAs on response and resolution, not a general promise
- Reversibility: can you take back control without losing the knowledge built up?
- Teams: who actually runs the service, where, and how is continuity assured?
- Management: a named point of contact, regular committees and reporting your teams can read without translation
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How much does a managed services contract cost?
Managed services are billed as a monthly fee, set during scoping from the actual scope rather than from a price list. Four factors drive that fee:
- The number and nature of the environments to be operated
- The cover window chosen: this is the biggest single variable, since 24/7 on-call requires a permanent organisation
- The level of contractual commitment on response times
- How much automation you already have in place
/ Cloud environments and monitoring tools
We operate your cloud and on-premise environments using proven monitoring, ticketing and security tools. The stack is tailored to your architecture and your operational objectives.
A tailored managed service, aligned with your technical and operational constraints.
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Transparent, controlled management
We commit to clear fixed fees, governed by SLAs and KPIs defined from the outset. Our RUN teams guarantee availability, security and performance through proven processes and structured governance.
Service levels are adapted, from business-hours cover to 24/7 on-call, with a multi-level organisation and a dedicated point of contact. More than 25 years of experience and more than 500 projects delivered, with more than 80 employees at Castelis, a hunik group company bringing together 7 specialist firms.
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Frequently asked questions
Managed services mean entrusting the operation of all or part of your information system to an external provider. They cover monitoring, incident handling, updates, backups and reporting, within a contractual framework with defined service levels. They differ from monitoring alone, which is limited to watching and alerting without taking on resolution.
No. Our teams manage public, private and hybrid cloud infrastructures as well as on-premise environments. The scope of work is defined during scoping and adapted to each client’s technical and organisational constraints.
Yes. We offer three levels of cover: business hours, extended hours and 24/7 on-call. The level is chosen service by service according to criticality, rather than applied uniformly across the whole infrastructure, because it is the factor that weighs most on the cost of the contract.
SLAs are defined during scoping according to how critical your services are, your business constraints and the level of cover expected. They govern response and resolution times, as well as availability and performance commitments.
The monthly fee depends on the number and nature of the environments operated, the cover window chosen, the level of commitment on response times and how much automation is already in place. We do not work from a price list: the quote is produced during scoping, once the scope is settled, and it is firm before any commitment.
The two terms overlap heavily. In practice, a managed service offering often means a package built around one specific technology, whereas managed services cover the operation of an infrastructure scope defined with you. What matters is not the vocabulary but the content of the contract: scope, commitments and governance.
We offer structured managed services models that can be adjusted to your context. The scope, service levels and governance are adapted to the complexity of your environment and your operational requirements.
We put in place management based on clear indicators: availability, incidents, capacity, security and, where relevant, cost optimisation. Regular reviews make it possible to analyse performance, adjust resources and anticipate technical or budget changes.
Let's talk about your managed services
