Who Controls the UK's £16.5bn Public Sector Technology Market?

In 2024–25, UK public sector technology expenditure reached £16.5 billion, 53% higher than five years earlier, according to figures attributed to Tussell Ltd. Yet 83% of that expenditure went to just 150 suppliers. What does that concentration mean for companies trying to win public sector business?

Evidence note: The figures below are drawn from Tussell research as supplied for this briefing. They have not been independently reconciled with the original dataset. The strategic implications are Vallience analysis, not Tussell findings.

A concentrated £16.5bn market

83% of expenditure: top 150 suppliers · 17%: all other suppliers

The ten largest suppliers in the reported ranking are Bytes, Capgemini, Softcat, BT, Atos, Leidos, Capita, Computacenter, Motorola and IBM.

This establishes a highly concentrated market, but not necessarily increasing concentration: a comparable historical share would be needed to establish whether incumbents are strengthening their position.

Are technology resellers becoming the gatekeepers?

Three of the ten largest suppliers — Bytes, Softcat and Computacenter — are major resellers and IT solutions providers. Reported public sector spending through resellers has doubled over five years, compared with 53% growth in overall technology spending.

Five-year expenditure growth

The figures suggest that reseller spending is expanding faster than the wider market. A plausible explanation is that public bodies value consolidated procurement, licensing, implementation and support. However, cloud adoption, changes in purchasing arrangements and the composition of contracts could also explain some of the increase.

Strategic hypothesis: technology publishers and specialist providers may increasingly need reseller relationships alongside direct public sector sales. This could influence routes to market, margins, customer access and competitive positioning. The spending data does not, on its own, demonstrate increased reseller pricing power.

For a supplier, the question may be not only which public body should we sell to? but also which intermediary already supplies that customer?

Procurement frameworks and the access divide

In 2024–25, 56% of contracts held by the top 150 suppliers were reportedly awarded through frameworks or dynamic purchasing systems (DPS), compared with 34% among suppliers outside that group.

Framework/DPS share of contracts

That is a 22-percentage-point difference. Frameworks involve competition at admission, and call-offs may involve further competition or direct award under the applicable rules. The access barrier is that suppliers not admitted to a closed framework generally cannot bid for its call-offs.

The source figures also identify £11.4bn in contract value, reportedly 69% of a relevant total. Contract value is not annual expenditure, and the denominator and coverage of this figure require confirmation against the original Tussell methodology before making direct comparisons.

The practical implication is that monitoring future framework competitions, replacement dates and eligibility requirements can be as important as tracking individual tenders.

For more on turning public procurement records into competitor insights, see our guide to public procurement data and competitive intelligence and what competitor contract wins reveal.

Three strategic responses for smaller suppliers

1. Prepare for future framework competitions

Identify relevant frameworks, monitor their replacement cycles and assess entry criteria well before a competition opens. Framework membership may provide access to multiple purchasing bodies over the agreement's life.

2. Build reseller and channel partnerships

Software publishers, specialist consultancies and manufacturers can explore partnerships with incumbent suppliers that already have customer relationships and procurement access. The trade-offs include margins, customer ownership and commercial control.

3. Use contract awards to identify potential partners

Contract awards can reveal which suppliers win work in relevant technology categories, the buying organisations, award values and durations, and possible renewal windows. A winning contractor may need specialist delivery partners, although an award is not proof that a subcontracting opportunity exists.

Use the Vallience public sector contract awards search to investigate award patterns and potential partnership targets.

Strategic outlook: what to monitor next

Three indicators would help test the hypotheses in this briefing:

• Reseller share over time: does reseller spending continue to outgrow the wider technology market?
• Framework access: does the gap between the largest suppliers and other providers widen or narrow?
• Supplier concentration: do the same 150 businesses retain their share, or are challengers gaining ground?

A useful intelligence process combines these signals rather than treating a single statistic as a forecast. See Vallience's competitive intelligence guide for a framework for evaluating evidence, monitoring developments and translating them into decisions.

From procurement data to competitive decisions

Knowing that public bodies spend £16.5bn on technology is market research. Asking whether faster reseller growth and framework access are reshaping the routes to market is competitive intelligence.

Vallience brings together public evidence and strategic analysis to help businesses understand competitor positioning and developments through scheduled monitoring.

Explore public sector contract awards or read more about Vallience's approach to competitive intelligence.

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Source: figures and supplier ranking attributed to Tussell Ltd research on UK public sector technology procurement, 2024–25. Strategic interpretations are by Vallience. The underlying Tussell report and methodology should be linked and checked before these figures are treated as independently verified.