• Mission

    Deliver a coherent, reliable, safe, and secure design and integration capability for high-performance mission and information systems, ranging from on-the-soldier to complex platforms, underpinned by a dynamic user-focussed in-service support service.

    Deliver a coherent, reliable, safe, and secure design and integration capability for high-performance mission and information systems, ranging from on-the-soldier to complex platforms, underpinned by a dynamic user-focussed in-service support service.

  • Vision

    To be the partner of choice for the development, integration and support of complex mission and information systems in the maritime and land domains.

    To be the partner of choice for the development, integration and support of complex mission and information systems in the maritime and land domains.

Capabilities

  • Prime Contract Management

    45+ years of experience contracting to the UK Ministry of Defence.

  • Design and Development

    Extensive in-house core capabilities, compliant to industry standards. 

  • System Integration and Installation

    Communications and electronic systems for military and security environments.

  • Software Design & Development

    Working to Def Stan 05-95, certified to ISO 9001-2015 with TickITplus.

  • Integrated Logistics Support

    In accordance with Def Stan 00-600 and Defence Logistics Frameworks.

  • Through-Life Services

    Dedicated teams to support frontline operational requirements. 

  • Research, Development & Consultancy

    Technical and feasibility studies, modelling and simulation, system prototyping and evaluation, and the provision of system simulators and stimulators.

  • Chertsey

    Head Office

    Principally responsible for system engineering, product development, and project support.

    Facilities

    Equipped with labs for test, assembly and prototyping, an Electromagnetic Compatibility (EMC) chamber and an environmental chamber.

    Address

    Unit A, The Forum, Hanworth Lane
    Chertsey, Surrey
    KT16 9JX

    Phone

    +44 (0) 1932 581100

    Our head office and system design centre is equipped with labs for test, assembly and prototyping, as well as electromagnetic compatibility (EMC) & environmental chambers.

    Get directions Get directions

  • Portland

    The Site by the Sea

    Responsible for sea trials support, in-service support and platform integration support.

    Facilities

    Equipped with a 20T overhead crane, test labs and kit assembly facilities.

    Address

    15 South Way, Southwell Business Park
    Portland, Dorset
    DT5 2NJ

    Phone

    +44 (0) 1305 862100

    Equipped with a 20T overhead crane, test labs and kit assembly facilities, our Portland site is responsible for sea trials support, in-service support and platform integration support.

    Get directions Get directions

  • Quality Statement

    'The organisation is a well-controlled organisation with clearly documented procedures, work instructions and forms coupled with a well-understood attitude to a controlled work environment.'

    - An auditor, during a recent review

    Drumgrange is certified to BS-EN-ISO 9001-2015 and TickITplus Foundation Level.

    In addition to the Ministry of Defence and associated agencies, many of our customers are themselves major defence contractors and have approved our premises for all phases of work. Drumgrange is experienced, knowledgeable and compliant to AQAP 2105, AQAP 2110 and AQAP 2210; Def-Stan 05-57; Def-Stan 05-61 Parts 1 and 4, and; Def-Stan 05-99.

    Drumgrange is certified to BS-EN-ISO 9001-2015 and TickITplus Foundation Level. In addition to the MoD and its agencies, many of our customers are major defence contractors and have approved our premises for all phases of work. 

    Read more

    Quality Statement

    Drumgrange is certified to BS-EN-ISO 9001-2015 and TickITplus Foundation Level. In addition to the MoD and its agencies, many of our customers are major defence contractors and have approved our premises for all phases of work. 

  • Export Statement

    Export controls imposed by the UK Government affect a proportion of the product we sell and many of our potential overseas markets.

    As a Company, we must therefore understand the controls and be quite sure we comply with them. The purpose of these controls is to limit the supply of technology or strategic goods to countries proscribed, principally for reasons of proliferation, security or terrorism. It is in the interest of all that the controls are effective. For our business, it is essential that we comply with the legislation; failure to do so would bring serious penalties for the company and for the individuals concerned.

    Export Controllers regularly review the effectiveness of our current procedures in light of the Export Control Joint Unit's Code of Practice to which we must adhere. Each member of the Company is aware of their role in ensuring that no items are despatched (remembering that this term covers the transmission of software or technology via Microsoft Teams, telephone, email or other electronic media and arranging to move goods between third countries) without due clearance and authorisation.

    Export Controllers regularly review the effectiveness of our current procedures in light of the Export Control Joint Unit's Code of Practice. Each member of the Company is aware of their role in ensuring that no items are despatched without due clearance and authorisation.

    Export Statement

    Export Controllers regularly review the effectiveness of our current procedures in light of the Export Control Joint Unit's Code of Practice. Each member of the Company is aware of their role in ensuring that no items are despatched without due clearance and authorisation.

  • Procurement Policy

    It is the Company Policy to:

    • Ensure supplier compliance
    • Assess suppliers and subcontractors for approval
    • Purchase goods and services from trusted companies
    • Be fair, ethical and transparent in all procurement activities
    • Identify the local social, environmental and economic impact of our supply chain
    • Ensure appropriate NDAs and/or other safeguards and controls are in place
    • Ensure impartiality
    • Comply with IR35 regulations
    • Ensure conformance to the Drumgrange Supplier Code of Conduct

    Our procurement policy supports the consistent application of procurement best practices and standards and promotes transparency and accountability at all levels.

    Read the full policy

    Procurement Policy

    Our procurement policy supports the consistent application of procurement best practices and standards and promotes transparency and accountability at all levels.

Partners & Customers

Certifications

Datasheets

Prime Contract Management

Our prime contract management expertise spans:

  1. Project management
  2. Subcontractor management
  3. Technical design authority
  4. Hardware and software design and development
  5. Mechanical design & ruggedisation
  6. Safety and security management
  7. Security management
  8. Training definition and delivery
  9. Integrated logistic support
  10. Through-life support and obsolescence management
  11. Research & consultancy

Supported by an extensive list of established suppliers and delivered by security-cleared staff. Our information systems are fully accredited to ___ with restricted LAN interconnect. 

Design and Development

These capabilities include:

      1. Systems engineering to military standards

      2. Software and embedded software engineering

      3. Real time embedded hardware system design

      4. Spares, repairs, equipment maintenance and reference sets

      5. Embedded VHDL (VHSIC Hardware Description Language) firmware

      6. Digital design: microprocessors, discrete and programmable logic devices

      7. Digital Signal Processors (DSP) design

      8. High-performance low-noise analogue design for front-end sensor interfacing and signal conditioning

      9. High-performance digitisation and data acquisitions systems

      10. Design for environmental compliance to Def Stan 00-35

      11. Design for electromagnetic compatibility and Tempest to Def Stan 59-411

      12. Reverse engineering and obsolescence recovery

      13. Prototyping, manufacturing and assembly

      14. Back to base or on-site equipment warranties and support

      15. Post Design Services (PDS)

System Engineering, Integration, and Installation

Modern military systems are moving away from ‘stovepipe’ equipment development, to integrated systems forming network-enabled capability. System design, integration and acceptance testing expertise across various platforms are therefore core capabilities within Drumgrange.

    1. System Engineering

      At Drumgrange Ltd, we take a comprehensive and structured approach to systems engineering, ensuring excellence throughout the entire engineering lifecycle. Our process is driven by a clear, well-defined set of requirements, enabling us to develop solutions that precisely meet customer needs while adhering to all relevant legislative, regulatory, and internal design standards.

      Where applicable, we implement Model-Based Systems Engineering (MBSE) to enhance the development process, providing a digital representation of the system that improves clarity, collaboration, and traceability. By leveraging MBSE, we create a robust foundation for design, analysis, and documentation, reducing risks and improving efficiency.
      Verification and validation (V&V) are integral to our process, ensuring that every solution meets its specified requirements. We apply structured testing, analysis, and evaluation methodologies to confirm performance, and compliance to the requirements, ensuring we deliver high-quality solutions that stand up to real-world demands.

    2. System Integration

      Our system engineering teams are experts in developing and integrating equipment within an existing system/platform infrastructure, whether that is to provide new functionality or to overcome equipment obsolescence.

      We produce comprehensive interface control documentation, produce signal stimulators and simulators for interface and system testing. Where necessary, we can reverse engineer interface control documentation for legacy equipment where there is limited or unreliable documentation.

    3. System Acceptance and Trials

      We have extensive experience planning, managing and conducting maritime and land-based equipment trials to support new capability system testing, performance measurements, acceptance testing and user trials.

      Some of the system acceptance activities we can undertake or support include:

      (a) Requirements decomposition and verification planning

      (b) Development of system acceptance test specifications and procedures

      (c) Development of documentation such as Integrated Test Evaluation and Acceptance Plans (ITEAP), verification plans and acceptance test specifications for Factory Acceptance Tests (FAT), Harbour Acceptance Tests (HAT), and Sea Acceptance Tests (SAT).

    4. Platform Installation
      A wide variety of expertise of integrating and installing electronic equipment on military platforms and on military establishments. Our Portland facility is equipped with a large secure workshop where we undertake the integration of specialist equipment on small military vessels and vehicles.

Software Engineering

We work to rigorous defence standards for requirements analysis, traceability, design, implementation, testing, integration and documentation using structured software development methodologies and lifecycles.

Our software engineers use tools such as Doors and Enterprise Architect for requirements management and for preparing UML/SysML based design specifications. Our implementation expertise includes development for MS Windows (NT, XP, 200x, 7, 10, embedded), MS Windows Server, Linux and RTOS based platforms using C (GNU C++, Visual C++, C#, Python), TCP/IP (X.21 and X.25 Networking, Sockets), HTML, Java, Intel Performance Primitives (IPP) library and Visual BASIC.

We also specialise in the development of real time systems with embedded software and firmware implemented on microcontrollers, FPGA and DSP devices from the major manufacturers including Xilinx, Altera, Texas Instruments and Analog Devices.

We also have wide experience of networking solutions, within real time systems, including secure switch configuration and management and health monitoring using SNMP and SSH.
Cyber Security and Information Assurance are key aspects for many of our systems and we are used to working within NCSC guidelines to provide systems suitable for use in secure environments.

We work to Def Stan 05-95 for software development and is certified to ISO 9001-2015 with TickITplus for the development of software systems.

Integrated Logistics Support

Our ILS Managers are an integral part of the design and manufacturing process influencing requirements and design considerations such that our products are designed to have an optimal balance of requirements for production, integration, supportability, maintainability and whole life cost. 

Our full Logistic Support Analysis (LSA) covers all aspects, including:

  1. Availability, Reliability and Maintainability (ARM)
  2. Initial Spares Provisioning
  3. Technical Publications
  4. Training Needs Analysis (TNA)
  5. Human Factor Integration (HFI)
  6. Supportability Test, Evaluation and Verification (STEV)
  7. Packaging, Handling, Storage and Transportation (PHS&T)
  8. Obsolescence Management
  9. Disposal

Once equipment has transitioned to the In-service Support Phase, our ILS Managers provide continuing support to the Managed Services Teams and User Communities alongside our Field Engineers.

Through-Life Support

Our support services are tailored to suit specific frontline operational requirements and coupled with specialist facilities that allow our in-house technical experts to support sonar trials, static or underway calibration and sonar recording for data analysis. 

(1)    Platform installation and setting to work
(2)    Custody and maintenance of reference sets and integration facilities
(3)    Development and Maintenance of Special to Type Test Equipment (STTE)
(4)    Documentation upkeep and configuration management
(5)    Security Management in accordance with JSP440
(6)    Cryptographic Custodian Services
(7)    Technical helpline
(8)    First to fourth-line repair and maintenance services with agreed turnaround times
(9)    Provision and secure storage of spares 
(10)    Repairs
(11)    Post-design services (PDS) Contracts
(12)    Contractor Logistics Support (CLS) arrangements 
(13)    Contracts for Availability
(14)    Safety and Environmental Management provided by Qualified Safety Engineers who are integrated within the project teams to provide expert advice, safety analysis and support throughout the entire project lifecycle from design, manufacture, integration, acceptance, in-service through to decommissioning and disposal.
(15)    Obsolescence Management in accordance with BS EN IEC 62402:2019, which includes obsolescence monitoring, analysis and recovery. We also offer a complete design, manufacture and integration capability for technology insertion to overcome obsolescence issues with in-service equipment.