G-Cloud is a UK Government framework designed to help public sector organisations procure cloud-based services efficiently through a central digital marketplace.
As a pre-approved supplier, Assystem is listed on G-Cloud and can promote its digital services directly to both new and existing clients, including Sellafield, the Defence Infrastructure Organisation (DIO), the UK Atomic Energy Authority (UKAEA), and Network Rail. This positioning enables Assystem to deliver innovative cloud-based and digital transformation services quickly and compliantly across major infrastructure and energy projects.
Through G-Cloud, Assystem offers a comprehensive portfolio of thirty services that support every stage of a project’s digital lifecycle.
Assystem’s participation in G-Cloud reinforces its commitment to supporting the UK’s digital transformation ambitions by making expert, secure, and efficient digital solutions readily accessible to public sector organisations.
Assystem supports a major player in the nuclear sector whose facilities are central to numerous complex projects where nuclear safety is paramount. Operating within a rigorous regulatory environment that includes strict quality standards and installation orders, the client’s engineering activities are driven by comprehensive safety studies that underpin every stage of the facility lifecycle.
Since 2015, Assystem has been entrusted through multiple contracts to deliver safety studies and supporting documentation across the client’s portfolio of facilities. This includes the drafting of preliminary safety reports and frameworks for complex and defence-related installations as well as safety design studies for waste recovery. During operational phases, Assystem has supported safety studies for major modifications.
Assystem’s integrated approach ensured the consistency and quality of its safety work by embedding expert teams within the client’s operational activities throughout each lifecycle stage. The collaborative model promoted the harmonisation of safety methodologies, capitalises on feedback from multiple facilities, and ensures robust alignment with both civil and defence regulatory frameworks.
Founded in 2021, the client is an emerging innovator in the nuclear energy sector with the ambition to transform global energy production through the development of safe, clean, and sustainable power. Its programme focuses on deploying a new generation of Lead-cooled Fast Reactors (LFRs) and constructing a dedicated MOX Fuel Fabrication Facility (M3F).
Assystem has been engaged by the client’s engineering teams in France, Italy, and the United Kingdom to provide technical and systems engineering support for both the LFR and M3F programmes. This includes the creation of model-based systems engineering (MBSE) models using CAPELLA to perform functional analysis of the MOX fabrication process, integrating material flows and nuclear constraints.
The client valued Assystem’s ability to provide a multidisciplinary team combining nuclear expertise, systems engineering proficiency, and an understanding of safety authority expectations. Through the partnership, Assystem continues to help the client accelerate the development of next-generation nuclear technologies that will contribute to a cleaner, more resilient energy future.
A major UK defence client initiated a company-wide programme to renovate and upgrade its project controls systems and processes, aiming to improve organisational maturity and restore confidence in project performance reporting. The client sought an integrated and standardised project controls approach that could underpin reliable decision-making across its defence programmes.
Assystem was commissioned to design and implement a comprehensive project controls system and to embed best practices across the client’s entire project portfolio. This included the deployment of Primavera P6 for project planning, initially focused on the client’s largest project before being rolled out across the organisation. The introduction of Cobra cost management software further enhanced the accuracy and consistency of financial reporting, improving data integrity and enabling robust Earned Value Management (EVM). Assystem’s consultants worked closely with the client’s teams to provide ongoing support, ensuring alignment between planning, cost, and reporting functions while transferring knowledge and building internal capability.
Through this collaboration, Assystem significantly increased the client’s overall project controls maturity. The integration of advanced tools and processes not only improved reporting accuracy but also restored confidence between management and project control functions. As a result, the client is now equipped with a reliable, data-driven framework that supports informed decision-making and sustainable performance improvement across its defence portfolio.
In line with the UK’s ambition to deliver 1 GW of floating wind power by 2030, Assystem supported a leading real estate client in planning and managing a major offshore floating wind energy project.
Assystem provided day-to-day planning and reporting support, including a Project Controls (PMO) maturity assessment to evaluate current processes and identify areas for improvement. The team reviewed existing reporting methods and developed a digital integrated performance dashboard tailored to the client’s needs. In parallel, Assystem structured the project programme architecture, engaged with key project managers and stakeholders, and developed an integrated project programme encompassing all critical interfaces and dependencies.
To mitigate uncertainty and improve confidence in delivery, Assystem conducted a Quantitative Schedule Risk Analysis, modelling the potential impact of risks and opportunities on the programme.
