In This Article
• What a dynamic purchasing system is and how it differs legally from a framework agreement
• The step-by-step process for setting up a DPS, joining as a supplier, and winning contracts via mini-competitions
• Why DPS is one of the most accessible procurement routes for smaller and mid-sized suppliers
• How the Procurement Act 2023 is reshaping DPS into “dynamic markets”
• How to find live DPS opportunities and respond competitively
Understanding the Dynamic Purchasing System in Government Procurement
For many suppliers, public sector procurement feels like a maze of portals, deadlines, and routes to market — each with its own rules and no guarantee of visibility into what sits on the other side. The dynamic purchasing system was built to address exactly that problem: a flexible, fully electronic procurement route that keeps its doors open to new suppliers throughout its entire lifetime, rather than closing them the moment a contract is awarded. DPS means Dynamic Purchasing System, an electronic system designed to streamline the procurement process for public sector buyers and suppliers.
Unlike a standard framework agreement — where the supplier list is fixed at the point of setup and unavailable to new entrants for years — a DPS operates on continuous access. Any supplier that meets the entry criteria can apply at any time, compete in individual contracts, and build a sustained pipeline of government procurement opportunities without being shut out by a missed deadline. Unlike frameworks, a DPS increases competition and offers greater flexibility by allowing suppliers to join at any time, creating a more level playing field for businesses of all sizes.
This article walks through how a dynamic purchasing system works from both sides of the table: what contracting authorities do to set one up, what suppliers need to do to join, and how contracts are awarded through the mini-competition process. A Dynamic Purchasing System must be set up using the Restricted Procedure as specified in public contract regulations, ensuring compliance and open access for any supplier meeting the selection criteria.
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What Is a Dynamic Purchasing System (DPS)?
A dynamic purchasing system is a fully electronic, open-access procurement route used by public sector organisations to purchase goods, works, and services. DPSs operate as an online DPS marketplace, where public sector buyers can efficiently access and procure from a list of pre-approved suppliers. It sits within the formal legal framework for public sector procurement in the UK — originally governed by Regulation 48 of the Public Contracts Regulations 2015 (PCR 2015) and now substantially updated under the Procurement Act 2023.
The defining characteristic of a DPS is that it never closes to new suppliers. Where a framework agreement locks in its supplier list on day one and caps its lifetime at four years, a DPS accepts applications on a rolling basis and can run indefinitely. For suppliers, this distinction matters enormously: missing a framework window can mean being locked out of an entire procurement category for three to five years. A DPS removes that risk entirely. DPS offers significant advantages for public procurement by streamlining the process and making it more efficient for both buyers and suppliers.
What Changed Under the Procurement Act 2023?
The Procurement Act 2023, which came into force in February 2025, represents the most significant reform to UK procurement law in a generation. Under the new regime, the DPS is rebranded as a “dynamic market” and its scope is significantly expanded. Previously restricted to commonly used goods and services, dynamic markets can now cover any goods, works, or services — making them applicable to a far wider range of procurement categories.
Existing DPS arrangements established under PCR 2015 continue to operate under the old rules but must transition to the new dynamic market framework by February 2029. For suppliers currently admitted to a PCR 2015 DPS, this means continuity in the short term and expanded opportunity as the transition plays out.
How a Dynamic Purchasing System Works — Step by Step
Understanding the mechanics of a DPS helps suppliers know what to expect at each stage, from initial setup to individual contract awards.
How Contracting Authorities Set Up a DPS
The contracting authority — which might be a government department, NHS trust, local council, or other public body. This notice sets out the scope of the DPS, the categories of goods or services it covers, the selection criteria suppliers must meet, and the basis on which individual contracts will be awarded. The notice will specify the date by which requests to participate must be received, and once a supplier submits a request, the contracting authority must evaluate it within 10 working days, extendable to 15 days if justified.
From that point, the DPS is live. Setting up a DPS in this way means the system remains open to new supplier applications throughout its lifetime, with no requirement for the authority to re-run a tender each time it wants to admit new suppliers. In some instances, multiple organisations may collaborate to set up a DPS if individual spend is insufficient, allowing buyers access to a broader supplier base. The Crown Commercial Service, for example, manages a range of DPS arrangements alongside its framework agreements, supporting thousands of public bodies across central government, NHS, and local authorities.
How Suppliers Join a Dynamic Purchasing System
Suppliers apply by completing a Selection Questionnaire (SQ) — a standardised pre-qualification document that covers experience, financial standing, and technical capability. Contracting authorities must assess each application to ensure suppliers meet the selection criteria before they are admitted. If they meet the minimum standards set at setup, they are admitted to the DPS and can begin competing for individual contracts.
Critically, this process is open at any time. A business that was not trading, not ready, or simply unaware of the DPS when it first launched can still apply years later and gain full access. Throughout the lifespan of a DPS, authorities must continuously assess and shortlist suppliers, which can be resource intensive and time-consuming. There is no single window to compete for and no risk of permanent exclusion through timing alone. For mid-sized companies building their public sector track record, this open-entry model represents a materially lower barrier to market than a closed framework bid.
How Buyers Purchase from a DPS
Buying from a DPS does not mean selecting a supplier directly from the admitted list. Instead, each individual contract is awarded through a mini-competition. When a contracting authority has a specific requirement, it invites all admitted suppliers in the relevant DPS category to submit a tender response. That response is evaluated against the award criteria published at DPS setup, and the contract is awarded to the highest-scoring submission. All contracts awarded through a DPS must go through further competition, ensuring transparency and fairness in awarding contracts.
This structure ensures that every contract issued through a DPS generates genuine competitive tension. There are no pre-allocated slots, no preferred incumbents, and no mechanism for buyers to award work without running a competition. For suppliers, it means every mini-competition is a fresh opportunity — and every admitted supplier in the category is eligible to compete. This structure provides ongoing tender opportunities and increases competition, which can drive down prices and encourage innovation.
How Long Does a DPS Last?
Unlike a framework agreement, which is capped at four years under PCR 2015, a DPS has no maximum duration. It can continue to operate, admit new suppliers, and issue mini-competitions for as long as the contracting authority requires. Because a DPS remains open to new suppliers, it creates ongoing opportunities for businesses to win new contracts and generate new business. For suppliers, a single successful application can therefore unlock a sustained pipeline of relevant opportunities over many years — without the need to re-qualify each time a new procurement cycle begins. However, with an unlimited and frequently changing pool of suppliers, developing long-term strategic partnerships can be more challenging than in traditional frameworks.
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Dynamic Purchasing System vs. Framework Agreement — Key Differences
Understanding how a dynamic purchasing system DPS compares to a framework agreement is essential for any supplier developing their public sector strategy. The two routes operate differently in several important respects. Unlike frameworks, DPSs offer several advantages and many benefits for both buyers and suppliers, including greater flexibility and ongoing access.
| Dynamic Purchasing System | Framework Agreement | |
|---|---|---|
| Supplier access | Open throughout — any compliant supplier can join at any time | Closed at setup — no new entrants once awarded |
| Duration | Indefinite (no cap) | Maximum 4 years (PCR 2015) |
| Contract award method | Mini-competition for every contract | Direct award or mini-competition from pre-approved list |
| Entry requirement | Selection Questionnaire (SQ) only | Full competitive tender at setup |
| Scope (Proc Act 2023) | Any goods, works, or services | Pre-defined categories |
The consequence for suppliers who miss a framework window is significant. Framework lock-out is one of the most acute commercial risks in procurement: once a framework is awarded, no new suppliers can enter, and the buyer has no obligation to look beyond the appointed list. A DPS eliminates this dynamic by design — openness is not a feature added at the margins, it is the structural foundation of the model.
Tracker Intelligence research from April 2025 points to a notable shift in how public sector buyers are structuring their routes to market. In the UK construction sector, the framework award/notice split reached 8.2% for the first time — a signal that contracting authorities are actively diversifying beyond purely framework-based procurement and exploring more flexible vehicles, including DPS. For effective implementation, it is recommended to run a pilot DPS before rolling it out across a range of categories.
The Benefits of a Dynamic Purchasing System for Suppliers
The DPS model offers three practical advantages that distinguish it from most other public sector procurement routes.
Open Access — Any Supplier Can Apply
The most significant benefit is continuous access to the supplier pool. Unlike a closed framework, where the list of approved suppliers is set from day one, a DPS allows new entrants throughout its lifetime. This is particularly valuable for smaller and mid-sized companies that may not have had the capacity, track record, or awareness to bid when the DPS originally opened. As they grow their public sector experience, they can join and compete on equal terms with longer-established suppliers. Suppliers are encouraged to get involved and actively participate in the DPS to maximise their opportunities.
A Lighter Application Process
Entry into a DPS is proportionate by design. Suppliers submit a Selection Questionnaire rather than a full competitive tender — a process calibrated to confirm minimum standards without requiring the kind of resource-intensive submission that a framework bid demands. It is important for suppliers to complete the application process accurately to ensure successful admission to the DPS. Consequently, the cost and time of entering the public sector supply chain through a DPS is materially lower than through most alternative routes, particularly for businesses doing so for the first time.
More Opportunities via Mini-Competitions
Every contract issued through a DPS is opened to competition. There is no direct award mechanism, no allocation of work to favoured suppliers between cycles, and no mechanism for buyers to bypass the mini-competition process. For admitted suppliers, this means a consistent and repeatable pipeline: every requirement that falls within their DPS category represents a genuine opportunity to win work, regardless of how long they have been on the system or how many contracts they have previously won through it. The competitive nature of DPS mini-competitions ensures that public sector buyers achieve value for money on every contract.
Dynamic Purchasing Systems and the UK Procurement Landscape
The context for DPS usage in the UK has shifted considerably in recent years. With public sector procurement spend exceeding £434 billion annually as of 2024, the routes through which that expenditure is directed matter enormously — both for buyers managing value and for suppliers trying to access the market efficiently.
Structural changes at the centre of government are also relevant. According to Tracker Intelligence research from April 2025, Crown Commercial Service (CCS) and the Cabinet Office have merged to form the Government Commercial Agency. The immediate impact on existing frameworks and DPS arrangements is limited, but the longer-term implications for how central government manages its commercial function — including the DPS vehicles it operates — are worth monitoring closely.
Adoption at the departmental level is already well established. Jim Rawlings, Director of Procurement at the Ministry of Justice, has described expanding DPS usage as a deliberate strategy: “We are quite excited to be expanding our use of dynamic purchasing systems… it streamlines the process, provides not only self-service but also local autonomy whilst giving us compliant spend and significantly better management information.” That kind of buyer-side endorsement reflects a broader shift in how large public sector organisations are thinking about procurement vehicles — prioritising flexibility and compliance assurance alongside cost efficiency.
Sectorally, DPS usage is most prominent in IT and digital services, construction and housing, and health and social care. The Government’s AI Services DPS, launched in 2020 and valued at £200 million, demonstrated the model’s effectiveness in fast-moving categories where a closed framework would quickly become unrepresentative of the available market. Tracker Intelligence research from April 2025 shows that AI spend in public sector procurement is accelerating rapidly — at a scale that now warrants dedicated market intelligence — reinforcing why a procurement vehicle that can admit new suppliers continuously is particularly well-suited to emerging technology categories. Ongoing feedback from suppliers and buyers helps improve the effectiveness of DPS arrangements and ensures that the system remains responsive to changing needs.
How to Find and Win Work Through a Dynamic Purchasing System
Knowing that DPS opportunities exist is only the starting point. The practical challenge for suppliers is identifying which DPS arrangements are relevant to their business, monitoring for new mini-competitions as they are published, and submitting responses that score competitively against the award criteria. Suppliers can use the DPS marketplace to efficiently search for and access relevant opportunities.
Finding relevant DPS opportunities requires consistent coverage of category-specific portals used by individual contracting authorities. Managing this manually — checking multiple platforms, tracking new notices, and ensuring no relevant mini-competition is missed — is time-consuming and creates real commercial risk. Many suppliers operating reactively find they consistently miss the early stages of mini-competitions and struggle to respond at pace.
The businesses that win most consistently through DPS tend to have made a different choice: moving from reactive searching to proactive intelligence, receiving matched alerts for new notices rather than hunting for them across fragmented portals. Supply2Gov Tenders delivers daily government procurement updates — including live DPS mini-competition notices across all sectors — matched to your business profile, so no relevant opportunity is missed.
Winning through a DPS requires more than timely submission. Mini-competitions are scored against defined award criteria, so understanding what the buyer prioritises — price, quality, social value, technical approach, or a weighted combination — is essential to a competitive response. Suppliers should review the original DPS documentation carefully before each mini-competition, keep their SQ information current, and treat each response as a standalone tender rather than a routine administrative task.
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Frequently Asked Questions About Dynamic Purchasing Systems
What is a dynamic purchasing system in procurement?
A dynamic purchasing system is a fully electronic, open-access procurement route used by public sector buyers to purchase goods, works, or services. A DPS allows public sector buyers to purchase goods and services across a wide range of categories through flexible agreements. It is legally compliant under the Procurement Act 2023 and allows new suppliers to apply and join at any point throughout its lifetime — unlike a framework agreement, which is closed to new entrants once awarded. This system supports ongoing opportunities for suppliers to participate.
How do I join a dynamic purchasing system?
Suppliers apply by submitting a Selection Questionnaire demonstrating they meet the minimum standards set by the contracting authority. Applications are accepted on a rolling basis, so there is no fixed deadline to meet and no single window to compete for entry.
What’s the difference between a DPS and a framework?
The key differences are openness and duration. A framework agreement closes to new suppliers once awarded and is capped at four years. A dynamic purchasing system DPS accepts new suppliers continuously and has no maximum duration. Every contract issued through a DPS is awarded via a mini-competition, ensuring ongoing competitive tension rather than pre-allocated work.
Can SMEs apply to a dynamic purchasing system?
Yes. The DPS model is specifically designed to be more accessible than traditional frameworks, with a proportionate SQ-only entry process and no fixed application window. The Procurement Act 2023 reinforces this intent, with its expanded dynamic market framework designed to support broader supplier access across the public sector. This makes DPS particularly well-suited to smaller and mid-sized companies building their public sector footprint.
How does a mini-competition work within a DPS?
When a contracting authority has a specific requirement, it invites all suppliers admitted to the relevant DPS category to respond with a tender. The mini-competition is evaluated against the award criteria published at setup, and the contract is awarded to the highest-scoring submission. Every admitted supplier in the category is eligible — there are no pre-allocated slots or preferred incumbents.
Ready to Find Dynamic Purchasing System Opportunities?
The dynamic purchasing system is one of the most supplier-friendly routes into government procurement available in the UK today. Its open-access model, indefinite duration, and mini-competition structure mean that any supplier meeting the entry criteria has a genuine, repeatable opportunity to win public sector contracts — without the commercial risk of being locked out by a missed framework deadline.
Under the Procurement Act 2023, the model is expanding. Dynamic markets now cover a broader range of categories than ever before, and the volume of opportunity available through this route is set to grow as contracting authorities adapt to the new legislative framework. For suppliers building their public sector strategy, ensuring they are visible on the right DPS arrangements — and monitoring mini-competitions consistently enough to respond when relevant contracts appear — is an increasingly important competitive priority.
Supply2Gov Tenders makes that straightforward, delivering daily public sector procurement alerts matched to your business so that no relevant DPS opportunity is missed.
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