UK defence is entering a higher-spend cycle. Many suppliers will misread that as a broad market opening. It is not.
The government has committed to spend 2.5% of GDP on defence from 2027, with ambition for 3% in the next Parliament, and the Strategic Defence Review has explicitly tied defence investment to national industrial growth. On paper, that sounds like a rising tide.
In practice, rising spend does not automatically create wider access. It often travels through the same channels, the same incumbents and the same programme architectures unless those structures are deliberately changed.
That is the mid-market access gap.
More money does not mean open market.
The headline narrative is strong. Defence is now being framed not just as a security priority but as a growth engine. The Strategic Defence Review talks openly about a new partnership with industry, reform of procurement, faster innovation and a stronger defence dividend for the UK economy.
All of that is directionally important. None of it guarantees better market access for technically capable suppliers below prime level.
The mistake many firms make is to treat budget expansion as market expansion. They are not the same thing.
A procurement system can grow in value while becoming more concentrated in practice. It can commission more capability while still routing most serious revenue through a narrow set of incumbents, framework holders and long-established programme relationships. That is exactly the risk in the current UK defence environment.
The concentration problem is visible in the data.
The official MOD numbers are blunt.
In 2024/25, 45% of MOD Core Department payments were non-competitive. Thirty-nine percent of total procurement expenditure went to the top ten suppliers. The top 18 suppliers received around half of all procurement expenditure. BAE Systems alone accounted for 16.3% of MOD spend.
That does not mean large suppliers should not receive large contracts. In sovereign defence programmes, scale and incumbency often have obvious logic behind them.
It does mean something else, though. Qualified suppliers looking for share gain are not entering a neutral field. They are entering a market where access is already heavily channelled before they arrive.
That is why so many technically credible firms stay commercially under-converted. They are not competing against the market in the abstract. They are competing against procurement architecture that already knows where it prefers to place risk, capability integration, and political confidence.
The SME numbers show the same direction of travel.
The government has started publishing the evidence of the gap more explicitly.
MOD placed 559 new contracts with SMEs in 2024/25 worth £876 million. That was down materially year on year by value. SMEs accounted for only 23% of newly awarded contracts by number. More strikingly, just 4% of MOD direct expenditure with UK industry went to SMEs.
Those figures do not perfectly describe the whole mid-market. But they do reveal the shape of the system.
The same structures that constrain SMEs often constrain the broader mid-market too: specialist engineering firms, advanced manufacturers, defence-adjacent technology businesses and certified suppliers that are too substantial to be called start-ups, but still too small to shape programme architecture on their own.
These firms are often the most commercially stranded part of the industrial base.
They have genuine technical capability. They may already hold the right approvals, export control discipline, manufacturing depth or niche delivery history. But they remain underrepresented in the routes that matter: early programme definition, workshare design, prime contractor insertion, team selection and sovereign capability positioning.
They are too large to live on pilot projects. Too small to dictate the frame. Technically credible, commercially peripheral.
Government has now admitted the barrier is structural.
This is where the current moment becomes more interesting.
The 2025 Defence Industrial Strategy does not pretend the market is functioning perfectly. It introduces a new Defence Office for Small Business Growth, a dedicated SME Commercial Pathway, and a target to increase MOD spending with SMEs by £2.5 billion by May 2028.
More revealing than the headline target is the language inside the policy response.
The SME Commercial Pathway explicitly tells commercial teams to reduce barriers, improve visibility of opportunities, avoid being reflexively risk-averse with smaller firms, increase supply-chain transparency, and strengthen SME resilience through better cash flow. It even warns against the lazy assumption that work should simply be routed through primes.
That matters.
When the buyer has to publish internal guidance telling its own teams not to assume that only large incumbents are safe, not to let primes become the default route, and not to create unnecessary barriers through process and payment structures, the problem is no longer anecdotal. It is structural.
The access gap is real enough that government is now trying to re-engineer around it.
Where contracts are actually won
Most underperforming suppliers still focus on the wrong moment.
They wait for the portal. They monitor the framework. They prepare the bid library. They polish the capability deck. Then they wonder why they are always late to the decisive conversation.
In UK defence, the commercial outcome is often shaped long before the formal procurement stage. By the time the tender appears, the critical architecture may already be in motion: who the primes trust, which supply chain risks are acceptable, how workshare is likely to be segmented, what sovereign narrative the programme needs, what exportability logic is desirable, and which firms are already visible to the programme team.
This is where mid-market suppliers get trapped. They engage when the process becomes visible. The incumbents engaged when the requirement was still being shaped.
The result is a familiar pattern. Technically good firms enter a competition that feels open, when in reality they are being measured against a structure that was formed months or years earlier.
What serious suppliers should do now
The firms most likely to break through in the next cycle will not do so by becoming louder. They will do so by becoming better positioned.
That means four things.
First, they need programme-specific account architecture, not generic business development. MOD, DE&S, primes, adjacent integrators, defence innovation routes and sovereign capability stakeholders all have to be mapped deliberately.
Second, they need to align to the sub-sectors government is actively prioritising. Munitions, combat air, autonomy, cyber, AI, semiconductors, batteries and high-value supply-chain resilience are not all equal in strategic relevance.
Third, they need commercial hardening. Security, compliance, delivery metrics, contracting readiness, cash resilience and export-control discipline are no longer back-office issues. They are part of supplier bankability.
Fourth, they need to get inside the pre-RFP window. The supplier that appears only when the bid opens is already competing from behind. The supplier that is visible during requirement shaping, team formation and capability framing is operating on different ground entirely.
Quorion view
The access gap is not a complaint about fairness. It is a market reality.
UK defence will spend more. That is clear. The question is who will be structurally positioned to absorb that spend.
For qualified mid-market suppliers, the answer will not be found in higher budgets alone. It will be found in whether they can redesign their route to market around how defence programmes are actually formed.
In this sector, commercial visibility is not a branding exercise. It is part of capability.
And for many suppliers, it is still the missing piece.