C5I Solutions
MARSS has built a reputation for rapidly creating agile, highly survivable C5I (Command, Control, Communications, Computers, Cyber, and Intelligence) solutions that support mission-critical decision-making in real-time, even under the most challenging conditions.
Our team of architects, system engineers, network engineers, security engineers and trainers specialise in delivering integrated, scalable, and modular capabilities—from Mobile Command Units and wireless multi-domain CIS to hybrid power systems—designed to enhance operational effectiveness, resilience, and mobility.
Our approach combines deep domain knowledge with the ability to rapidly adapt and integrate best-of-breed technologies, creating complete C5I solutions that are future-ready and aligned with evolving defence and security needs. Whether operating from dispersed locations, buildings of opportunity, or in DDIL environments, MARSS solutions ensure forces stay connected, informed, and in control.
Secure by Design (SbD) consultancy
At MARSS, we provide specialist Secure by Design (SbD) consultancy to support the delivery of defence and government systems that are secure, compliant, and accreditation-ready from the outset. Our team works with programme leads, system architects, and Security Assurance Coordinators (SACs) to embed security into every phase of the system lifecycle.
Secure by Design (SbD) is a UK Government and MOD-endorsed engineering approach that ensures systems are built with security embedded from inception, not retrofitted as an afterthought. At MARSS, we apply SbD as a foundational principle across all C5I and mission-critical platforms, aligning with the latest MOD and NCSC best practice and guidance to ensure our solutions are not only operationally effective but also accreditation-ready from day one.
Our approach incorporates the full scope of UK Secure by Design practices, including:
Compliance with JSP 453 (previously JSP 604), JSP 440, and Defence Digital Accreditation Pathways (including CAP and CAAT processes).
Application of JSP 906 which outlines the Design Principles for the cost effective Acquisition of Capability. It emphasizes existing capability reuse, the use of open standards in solutions to ensure security, innovation, and operational superiority
Alignment with NCSC Secure System Design Principles, such as threat modelling, segregation of trust domains, and defence-in-depth architecture.
Delivery of robust RMADS (Risk Management & Accreditation Document Sets) and SyOps as part of the project lifecycle.
Continuous engagement with Security Assurance Coordinators (SACs), accrediting authorities, and risk owners throughout design, integration, and testing.
Whether we're delivering tactical communications nodes, deployed wireless CIS networks, or multi-domain Mobile Command Units (MCUs), every solution is engineered with security-first architecture, incorporating layered controls, secure identity brokering, and data separation between classifications.
By embedding security at the architectural level and through continuous validation—including external penetration testing, and vulnerability assessments—MARSS ensures our systems meet or exceed the expectations of UK MOD accreditation authorities. Our solutions are field-ready, accreditation-aware, and resilient against evolving cyber threats from the outset.
Project and Programme Management
At MARSS, we tailor our project management approach to the unique demands of each client and mission. We combine Agile delivery methods with traditional project management frameworks to ensure both flexibility and control across all phases of a project lifecycle.
Our Agile methodology allows us to rapidly respond to evolving requirements, integrate user feedback early, and deliver incremental value—especially critical in fast-moving defence and secure communications environments. This approach is ideal for innovation-driven tasks, such as proof-of-concept development, rapid prototyping, and iterative capability testing.
Alongside Agile delivery, we implement structured project governance using traditional waterfall principles where stability, risk management, and long-term planning are essential. This dual-track model ensures milestones are met on time and on budget, while still allowing room for adaptation when necessary.
Whether deploying mission-ready systems, delivering complex integration programmes, or managing cross-domain C4I solutions, MARSS brings discipline, adaptability, and clarity to every project we lead.
Regional reseller services (UK and GCC)
As a trusted regional reseller, MARSS bridges the gap between global technology providers and government, defence and healthcare clients in the UK and GCC markets. Leveraging strong local knowledge, decision maker relationships, and security-cleared personnel, we help our partners deliver mission-critical equipment with confidence.
MARSS provides a reliable fast procurement route to market—supported by deep domain expertise and a commitment to operational excellence.