Operational equipment sustainment
Mastering sustainment to ensure system availability
Entrust us with your project from start to finish, either as a targeted assignment or as a full project.
Our difference: expertise rooted in operations
ISD teams are made up of technical and operational experts with direct experience of the environments in which they work.
This proximity to field realities enables rapid understanding of constraints and effective implementation of support solutions.

A comprehensive sustainment approach
The performance of a system does not depend only on its design, but on its ability to remain available, reliable and usable over time.
ISD works at every stage of the life cycle, structuring support frameworks, assisting equipment operation and ensuring operational continuity.


- In-Service Support in France and Worldwide
- Technical and operational training
- Global-MCO & reverse engineering
- Project management in France and internationally
- Logistics Support Analysis - LSA
- User Technical Documentation - UTD
At the heart of your operations
ISD provides field experts capable of working directly on your sites, wherever they are in the world.
Whether you need a one-off assignment, medium-term support or a continuous long-term presence, we adapt our commitment to your operational constraints.
Our teams are experienced in the demands of expatriation and the complexity of international contexts. They quickly integrate local specificities (regulatory, logistical and cultural) to ensure effective support from the first hours of deployment.
What you gain:
• Operational continuity: your equipment remains available
• Responsiveness: a qualified expert, on the ground
• Logistical peace of mind: ISD manages all constraints linked to deployment
• Adaptability: every intervention is calibrated to the duration, environment and sensitivity level of the site
ISD supports you at the very heart of your operations.
Training that builds operational autonomy
ISD designs and deploys training programs tailored to the requirements of defense operations, in France and internationally.
Our teams include former operators of naval, land and naval aviation equipment, working alongside experts from the defense industry.
This combined operational and industrial perspective enables us to design training programs that speak the same language as your teams and reflect the conditions they actually face.
Each program is built from real technical data and the specific operational contexts of your users. ISD develops all associated materials (course content and e-learning modules) combining theory, hands-on practice and digital formats to build lasting capability.
What you gain:
• Skills transfer: our field-experienced trainers share practical know-how, ensuring deep adoption and capabilities that last
• Adaptability to training contexts: client cultures, organizational specificities, international environments, every program is adjusted without compromising quality
• Multi-equipment, multi-skilled expertise: our teams combine technical mastery, operational insight and training engineering across a wide variety of systems
• Resilience in the face of disruption: tight deadlines, program changes, unstable contexts, ISD adapts its programs in real time to maintain the expected standard
Our areas of intervention:
Operational use · Maintenance · Live-fire training · System training
Because equipment only performs when its users fully master it, ISD supports you from design through execution.
Maintaining performance in real-world conditions
ISD Group operates within Global-MCO, a business grouping dedicated to the technical mastery of equipment throughout its service life.
This solution addresses both system evolution and through-life support, covering the full chain — from engineering studies to component redesign, and from prototype manufacturing to series production — while integrating technical, operational and sustainment requirements.
Our approach: continuous engineering to extend the service life of your systems.
Whether the challenge involves critical obsolescence, reproducing an out-of-catalog mechanical part or reverse-engineering an electronic component that can no longer be sourced, our teams act with the rigor and responsiveness required to meet sovereignty and operational availability challenges.
What you gain:
• Extended equipment life: mechanical and electronic reverse engineering helps overcome supply disruptions without waiting for an industrial solution that no longer exists
• Preserved operational autonomy: users remain in control of their systems, independent of supply chain disruption and technology cycles
• Obsolescence addressed before it becomes a crisis: our continuous monitoring anticipates breaks in supply and prepares substitute solutions upstream
• A single partner across the full chain: from engineering study to series production, including prototyping, Global-MCO covers the entire process without any break in expertise
ISD supports you throughout the full life cycle of your equipment.
Securing complex projects
For defense manufacturers and SMEs, ISD acts as a program management partner for support and sustainment programs.
From commissioning through to in-service support, our teams ensure program consistency, commitment management and stakeholder coordination, in France and internationally.
Demonstrations, support engineering, integration, training and sustainment: ISD manages each phase of the life cycle with the same level of rigor.
Across the full program chain, we ensure continuity between manufacturers, subcontractors and project interfaces, helping secure delivery against every commitment.
What you gain:
• Project management rigor: structured teams that understand the requirements of the defense industrial world and ensure effective follow-up on deadlines, costs and risks
• Operational interface between stakeholders: our teams know the field and the organizations involved; they coordinate prime contractors, manufacturers and subcontractors with method and transparency
• Understanding of local cultures and contexts: our teams adapt to the operating practices of each country to ensure effective coordination on international programs
• Concrete quality follow-up at every stage: from production to delivery, our teams make sure commitments are met and deliverables comply
ISD stands by your side at every milestone of your program, with the rigor and field knowledge that defense projects require.
Mastering support from design to deployment
ISD designs and structures coherent support systems aligned with operational requirements and defense standards.
Our approach is based on integrating support constraints as early as possible in the system life cycle, in order to control their technical and economic impacts over the long term.
From the design phases through to MCO, our teams carry out Logistics Support Analysis (LSA) work in accordance with current standards (1388-2B, S3000L, S2000M, MAT10003), with the rigor required by defense programs.
What you gain:
• Rigorous integration of support constraints from the design phase: our teams analyze logistics impacts as early as possible in the life cycle, based on the real operating conditions of the equipment, to control operational availability and total cost of ownership over time
• Mastery of defense standards and processes: every deliverable is produced with the level of documentation rigor required by French and international defense programs
ISD treats logistics support as a structuring technical requirement, integrated from the earliest phases and maintained throughout the system life cycle.
Turning documentation into an operational tool
ISD has a dedicated unit for the design and structuring of User Technical Documentation (UTD), working directly with its maintenance engineering and technical control teams.
Using data from Logistics Support Analysis, we build complete documentation systems that are consistent with contractual requirements and directly usable in operational conditions.
Every deliverable is structured in line with current standards (MAT 10000, ASD S1000D) and designed to meet the concrete needs of field users.
What we deliver:
• Reliable documentation: built from LSA data, it accurately reflects equipment as it is operated and maintained in the field
• Fewer operating and maintenance errors: clear, structured materials aligned with end-user expectations
Our areas of expertise:
Operator manuals & technical guides · Maintenance manuals · Operating instructions · Illustrated parts catalogs · Structuring of complete documentation systems · MAT 10000 & ASD S1000D compliance
The quality of technical documentation is measured in the field. ISD designs it to that standard.
In-Service Support in France and Worldwide
At the heart of your operations
ISD provides field experts capable of working directly on your sites, wherever they are in the world.
Whether you need a one-off assignment, medium-term support or a continuous long-term presence, we adapt our commitment to your operational constraints.
Our teams are experienced in the demands of expatriation and the complexity of international contexts. They quickly integrate local specificities (regulatory, logistical and cultural) to ensure effective support from the first hours of deployment.
What you gain:
• Operational continuity: your equipment remains available
• Responsiveness: a qualified expert, on the ground
• Logistical peace of mind: ISD manages all constraints linked to deployment
• Adaptability: every intervention is calibrated to the duration, environment and sensitivity level of the site
ISD supports you at the very heart of your operations.
Technical and operational training
Training that builds operational autonomy
ISD designs and deploys training programs tailored to the requirements of defense operations, in France and internationally.
Our teams include former operators of naval, land and naval aviation equipment, working alongside experts from the defense industry.
This combined operational and industrial perspective enables us to design training programs that speak the same language as your teams and reflect the conditions they actually face.
Each program is built from real technical data and the specific operational contexts of your users. ISD develops all associated materials (course content and e-learning modules) combining theory, hands-on practice and digital formats to build lasting capability.
What you gain:
• Skills transfer: our field-experienced trainers share practical know-how, ensuring deep adoption and capabilities that last
• Adaptability to training contexts: client cultures, organizational specificities, international environments, every program is adjusted without compromising quality
• Multi-equipment, multi-skilled expertise: our teams combine technical mastery, operational insight and training engineering across a wide variety of systems
• Resilience in the face of disruption: tight deadlines, program changes, unstable contexts, ISD adapts its programs in real time to maintain the expected standard
Our areas of intervention:
Operational use · Maintenance · Live-fire training · System training
Because equipment only performs when its users fully master it, ISD supports you from design through execution.
Global-MCO & reverse engineering
Maintaining performance in real-world conditions
ISD Group operates within Global-MCO, a business grouping dedicated to the technical mastery of equipment throughout its service life.
This solution addresses both system evolution and through-life support, covering the full chain — from engineering studies to component redesign, and from prototype manufacturing to series production — while integrating technical, operational and sustainment requirements.
Our approach: continuous engineering to extend the service life of your systems.
Whether the challenge involves critical obsolescence, reproducing an out-of-catalog mechanical part or reverse-engineering an electronic component that can no longer be sourced, our teams act with the rigor and responsiveness required to meet sovereignty and operational availability challenges.
What you gain:
• Extended equipment life: mechanical and electronic reverse engineering helps overcome supply disruptions without waiting for an industrial solution that no longer exists
• Preserved operational autonomy: users remain in control of their systems, independent of supply chain disruption and technology cycles
• Obsolescence addressed before it becomes a crisis: our continuous monitoring anticipates breaks in supply and prepares substitute solutions upstream
• A single partner across the full chain: from engineering study to series production, including prototyping, Global-MCO covers the entire process without any break in expertise
ISD supports you throughout the full life cycle of your equipment.
Project management in France and internationally
Securing complex projects
For defense manufacturers and SMEs, ISD acts as a program management partner for support and sustainment programs.
From commissioning through to in-service support, our teams ensure program consistency, commitment management and stakeholder coordination, in France and internationally.
Demonstrations, support engineering, integration, training and sustainment: ISD manages each phase of the life cycle with the same level of rigor.
Across the full program chain, we ensure continuity between manufacturers, subcontractors and project interfaces, helping secure delivery against every commitment.
What you gain:
• Project management rigor: structured teams that understand the requirements of the defense industrial world and ensure effective follow-up on deadlines, costs and risks
• Operational interface between stakeholders: our teams know the field and the organizations involved; they coordinate prime contractors, manufacturers and subcontractors with method and transparency
• Understanding of local cultures and contexts: our teams adapt to the operating practices of each country to ensure effective coordination on international programs
• Concrete quality follow-up at every stage: from production to delivery, our teams make sure commitments are met and deliverables comply
ISD stands by your side at every milestone of your program, with the rigor and field knowledge that defense projects require.
Logistics Support Analysis - LSA
Mastering support from design to deployment
ISD designs and structures coherent support systems aligned with operational requirements and defense standards.
Our approach is based on integrating support constraints as early as possible in the system life cycle, in order to control their technical and economic impacts over the long term.
From the design phases through to MCO, our teams carry out Logistics Support Analysis (LSA) work in accordance with current standards (1388-2B, S3000L, S2000M, MAT10003), with the rigor required by defense programs.
What you gain:
• Rigorous integration of support constraints from the design phase: our teams analyze logistics impacts as early as possible in the life cycle, based on the real operating conditions of the equipment, to control operational availability and total cost of ownership over time
• Mastery of defense standards and processes: every deliverable is produced with the level of documentation rigor required by French and international defense programs
ISD treats logistics support as a structuring technical requirement, integrated from the earliest phases and maintained throughout the system life cycle.
User Technical Documentation - UTD
Turning documentation into an operational tool
ISD has a dedicated unit for the design and structuring of User Technical Documentation (UTD), working directly with its maintenance engineering and technical control teams.
Using data from Logistics Support Analysis, we build complete documentation systems that are consistent with contractual requirements and directly usable in operational conditions.
Every deliverable is structured in line with current standards (MAT 10000, ASD S1000D) and designed to meet the concrete needs of field users.
What we deliver:
• Reliable documentation: built from LSA data, it accurately reflects equipment as it is operated and maintained in the field
• Fewer operating and maintenance errors: clear, structured materials aligned with end-user expectations
Our areas of expertise:
Operator manuals & technical guides · Maintenance manuals · Operating instructions · Illustrated parts catalogs · Structuring of complete documentation systems · MAT 10000 & ASD S1000D compliance
The quality of technical documentation is measured in the field. ISD designs it to that standard.
Measurable operational outcomes


Improved system availability

Reduced support costs

More reliable operations

Increased team capability
Secure the performance of your systems
ISD Group helps clients master sustainment, through-life support and on-site operations, in France and internationally.
