The Defence Investment Plan reflects the Government's intention to use defence investment to support both national security objectives and wider economic development goals.
The DIP repeatedly describes defence as an "engine for growth", arguing that investment decisions should be assessed not only against military capability but also against their contribution to:
The Government estimates the defence sector already supports more than 272,000 jobs across the UK and that the investments within the Plan could support nearly 60,000 additional direct and indirect jobs by 2029/30.
For local and regional economies, the significance lies not only in the scale of investment but in its concentration.
The Plan emphasises the importance of targeted investment and policy interventions designed to build and strengthen:
The Government is also establishing a series of dedicated funding, skills and investment mechanisms intended to strengthen the UK’s defence industrial base, support growth in strategically important places, and help businesses, workers and institutions connect into emerging defence opportunities. These include:
This suggests that the economic impact of the DIP could extend well beyond traditional defence civil industry partners and military bases. Those places able to align their existing industrial strengths with emerging defence priorities could benefit from associated investment.
The Defence Investment Plan points to a relatively concentrated geography of opportunity. While its funding commitments are national in scale, many of the clearest place-based signals are clustered around existing defence, manufacturing, naval, aerospace and innovation assets.
This is most visible in the Plan’s commitment to five National Defence Growth Deal locations, covering Scotland, Wales and Northern Ireland, alongside Plymouth and South Yorkshire. The DIP also links investment to the skills system, including a £182 million package over five years to strengthen engineering, digital and advanced manufacturing skills across the defence sector. This will be supported through five Defence Technical Excellence College institutions, rather than simply five discrete places, with their delivery expected to benefit wider defence geographies and supply chains beyond their campus locations. For example, Barrow is expected to be served through the Blackpool and The Fylde College offer, reflecting the role these institutions can play in connecting local workforces to nationally significant defence programmes.
The following areas, identified on the infographic below, are not simply recipients of defence expenditure. They are being positioned as long-term industrial hubs, with roles in supply chain resilience, workforce development, innovation and sovereign capability. For professionals working in economic development, the key question is therefore not only where investment is being directed, but how local assets can be leveraged, connected and strategically positioned within the UK’s evolving defence economy.
Key Defence Sector Locations Identified in The Defence Investment Plan
The Defence Investment Plan demonstrates that defence is increasingly being used as a tool for economic growth as well as national security. Alongside major investments in military capability, the Plan places significant emphasis on innovation, advanced manufacturing, skills development, supply chain resilience and emerging technologies such as AI, cyber and quantum.
While several locations are explicitly identified as focal points for investment, the opportunities created by the DIP are likely to extend well beyond these places. As delivery progresses, there will be growing demand for specialist skills, supply chain capacity, research partnerships and innovation ecosystems across a wide range of sectors and geographies.
For local authorities, combined authorities and other organisations, this creates an important strategic question: how do local strengths align with the UK's evolving defence and security agenda? Places that can clearly articulate their role within national defence supply chains and priority sectors may be better positioned to attract future investment and align with wider Government priorities.
GC Insight can support places to identify related opportunities, assess their competitive advantages and develop evidence-based propositions that position them as important contributors to this growing sector. Recent examples of our work to realise the economic growth potential of the defence sector include in Barrow-in-Furness, and through the Great South West Industrial Workforce Plan. Connect with our team to find out more.
