Part of The UK Public Sector Explained. Start with the Guide to UK Government & Public Services if you need the structural context first.
From an identified need to funding, market engagement, procurement, award, delivery and future opportunity.
A public sector opportunity rarely begins when a tender is published. Before formal procurement starts, an organisation may already have identified a problem, developed a business case, secured funding, spoken to the market and decided how it intends to buy.
For suppliers, that changes the question from simply “What tenders are live?” to “Where is need developing, who owns it, what is changing, how might it be funded and what route will the buyer use?”
Public sector buying usually develops through a wider commercial journey rather than beginning only when a tender is published. A need is identified, funding and approvals are considered, the market may be engaged, an appropriate procurement route is selected, a contract is awarded and delivered, and the resulting supplier relationship, spend and organisational change can shape the next requirement.
By the time a tender has been published, many of the important conversations about the requirement may already have happened. That does not mean a supplier can or should influence a procurement unfairly. It means that lawful, transparent market engagement and good market understanding can happen well before a competition opens.
This page explains the commercial journey as a practical model. The exact legal process varies by organisation, contract, sector, value and jurisdiction, and Scotland operates its own devolved procurement regime.
Oscar Research guide · Reviewed September 2026. Procurement references on this page were checked against current Cabinet Office Procurement Act 2023 guidance. The buying journey itself is Oscar Research's practical commercial model, not a statutory process.
The buying journey
Oscar's buying journey is deliberately circular. Public sector buying does not stop at award: delivery, supplier performance, organisational change and future need feed directly into the next cycle.
The inner cycle shows the core buying journey from need identification through funding, market engagement, route selection, award, delivery and the next emerging requirement. Around that cycle sit the signals and activities that help suppliers understand where opportunity is forming: marketing and stakeholder engagement, bid intelligence, market intelligence and leading indicators such as contract expiry, spend, organisational change and emerging priorities.
The important point is that these activities overlap. Suppliers do not only need visibility when a tender is published. The strongest market view connects what is happening before procurement, what is happening during the buying process and what happens after award — because each stage can provide evidence about what is likely to happen next.
Want to see what this stage looks like for your own organisation? Oscar Supplier Intelligence uses detected public sector contract wins, spend relationships and market position to show the footprint you already have — and the context that can help shape what comes next.
Where suppliers can engage
Different stages call for different behaviour. Early engagement should help the authority understand the market without creating unfair advantage; formal procurement requires strict compliance with the published process; post-award activity is about delivery, performance and future needs.
Identify organisations experiencing change, investment, service pressure or policy-driven requirements. Understand who owns the problem, what outcomes matter and whether preliminary market engagement is taking place.
Explore Market ResearchOnce a formal process begins, suppliers need to understand the notice, procedure, requirements, evaluation approach, timetable and stakeholders while following the authority's procurement rules and communication channels.
Explore Tender AlertsDelivery performance, contract management, organisational change, new leadership and actual spend can all reveal how the next requirement may develop.
See Your Supplier FootprintThe buying group
There is rarely a single universal “buyer”. A requirement can pass through several people who influence the specification, money, risk, commercial route and final approval.
The exact buying group depends on what is being bought and where the organisation is in the journey. The person who first identifies the need may not be the person who controls the budget, runs the procurement or signs off the award.
This is why responsibility is often more useful than job title alone. Similar organisations may place the same function under different titles, teams or management layers.
Commissioning vs procurement
A useful distinction is that commissioning is primarily about understanding need and deciding what outcome or service should be delivered, while procurement is the commercial and legal process used to acquire the goods, services or works required.
Starts with population, service or organisational need. It can involve assessing current provision, defining outcomes, deciding how services should be designed and considering whether provision should be delivered internally, jointly or externally.
Takes a defined requirement into an appropriate buying process. It covers the route to market, procedure, documentation, supplier selection, evaluation, award and contractual arrangements.
Route selection
There is no single route for every requirement. The appropriate method depends on the contract, its value and subject matter, the relevant legal regime, available frameworks or other commercial arrangements, and the authority's procurement strategy.
A framework sets out the basis for future contracts with one or more suppliers. An eligible contracting authority may award a call-off contract under the framework in accordance with its terms, which can avoid running a completely new competitive tendering procedure.
For procurements subject to the Procurement Act 2023, the open procedure is one of the two competitive tendering procedures. Any interested supplier may submit a tender in response to the tender notice, subject to the procurement's requirements.
The second competitive procedure under the Procurement Act 2023 allows a contracting authority to design a multi-stage process appropriate to the procurement, within the Act's rules and objectives.
A public contract may be awarded without a competitive tendering procedure only where the Procurement Act permits it. For relevant direct awards, the authority must publish the required transparency notice before award.
Different requirements can apply to below-threshold contracts and to particular sectors or contract types. Suppliers should check the rules and notices that apply to the specific opportunity.
The Procurement Act 2023 is not a single UK-wide replacement for every procurement rule. Scotland retains its own devolved public procurement regime, and suppliers should check which legal framework applies.
For procurements commenced under the Procurement Act 2023 regime, the principal competitive procedures are the open procedure and the competitive flexible procedure. Preliminary market engagement can take place before a tender or transparency notice, provided it does not unfairly advantage a supplier or distort competition. Frameworks provide for future contract awards under their terms, while direct award is available only where the statutory conditions are met.
Before the tender
A tender is an obvious signal because the requirement is formal. Earlier stages are less obvious, but they can reveal where change, investment and future demand are developing.
Mergers, restructures, new teams, new senior appointments and changing responsibilities can alter who owns a problem and where budgets sit.
Strategies, plans, statutory duties and policy announcements can indicate where organisations are preparing to change services or invest.
Budgets, grants, business cases, capital programmes and funding announcements can move an idea closer to a viable purchase.
Preliminary market engagement notices, supplier events, RFIs and other engagement can show that a future procurement is actively being shaped.
Existing contracts, incumbent suppliers, expiry dates, extensions and contract performance can provide context for likely renewal or replacement activity.
Supplier relationships and actual spend help reveal whether the requirement is growing, changing, underperforming or likely to generate another need.
Oscar’s Supplier Intelligence tool turns historic awards, public body spend relationships and supplier ranking into a practical snapshot of how your organisation currently appears in the public sector market.
The practical model
Finding opportunities earlier requires more than one data source. The strongest view of the market combines the organisations, the people, their responsibilities, structural change, early signals, contracts, spend and formal procurement activity.
Which public bodies and public service organisations are relevant to the problem you solve?
Who owns the service, function, budget, technical requirement or commercial process?
What is changing before formal procurement becomes visible?
What is already in place, with whom and for how long?
What does actual buying behaviour reveal about the relationship and requirement?
When the requirement becomes formal, what procedure and route is being used?
How Oscar fits the journey
Oscar Research has researched UK Government and Public Services since 1984. Our role is to help suppliers understand the organisations, people and changes behind a market rather than treating procurement notices as the whole story.
Explore Oscar's current public sector database hub by sector, organisation type, job function, seniority, geography and responsibility.
Explore Public Sector Data →Track live public sector tender opportunities and configure alerts around the markets, buyers and categories that matter to you.
Explore Tender Alerts →Use contract intelligence to see what has been bought, which suppliers are active and where buyer activity is developing.
Explore Contract Intelligence →See detected public sector contract wins, spend relationships, buyer overlap and market position for your own organisation.
Generate Your Snapshot →Create a free Public Sector Network supplier profile, publish your business presence and access core PSN tools and alerts.
Register on PSN for Free →Commission research or data feeds around specific buyers, competitors, markets, events or opportunity signals.
Explore Bespoke Data Feeds →Tell us what you sell and which part of Government or Public Services you want to reach. We can help define the relevant organisations, responsibilities and decision-makers and show you where intelligence can add context.
Related guide
If you need the organisational context behind this buying journey, start with our visual guide to the structure, governance and management of UK Government and Public Services.
Quick answers
The formal procurement process has a defined legal start, but the wider buying journey can begin much earlier. Need identification, funding, planning and preliminary market engagement may all happen before a tender notice appears.
No. The route depends on the requirement, value, applicable procurement rules and available arrangements. Depending on the circumstances, an authority may use an existing framework, a competitive tendering procedure or direct award where legally permitted.
Under the Procurement Act 2023, preliminary market engagement takes place before a tender or transparency notice is published and can help authorities and suppliers prepare for a procurement. It must be managed so that no supplier receives an unfair advantage and competition is not distorted.
Under the Procurement Act 2023, a framework is a contract between a contracting authority and one or more suppliers that provides for future contract awards to those suppliers. Contracts awarded under it are commonly referred to as call-off contracts.
Direct award is the award of a public contract without a competitive tendering procedure. Under the Procurement Act 2023 it is available only where the statutory conditions are met, and relevant direct awards require a transparency notice before award.
The open procedure is one of the two competitive tendering procedures under the Procurement Act 2023. It is a single-stage procedure in which interested suppliers can submit tenders in response to the tender notice.
The competitive flexible procedure allows a contracting authority to design a competitive process that suits the particular procurement, including multiple stages where appropriate, while complying with the Act.
There is no universal answer. Specifications can be shaped by service owners, technical or functional specialists, procurement teams, users and other stakeholders. Preliminary market engagement may also help an authority understand available solutions before finalising its requirement.
The budget holder or sponsoring function may differ from the service lead or procurement team. Major purchases can also require finance, governance or senior-level approval.
Suppliers can benefit from understanding the market before formal procurement begins, particularly during legitimate preliminary market engagement. Once a formal competition is live, suppliers should follow the authority's stated communication and procurement process.
The contract moves into mobilisation, delivery and contract management. Supplier performance, spend, organisational change and future requirements then become part of the next buying cycle.
No. The Procurement Act 2023 applies to its defined contracting authorities and procurements, but Scotland retains a separate devolved public procurement regime. Sector-specific and transitional rules can also matter, so suppliers should check the rules applying to each opportunity.
The buying journey is Oscar Research's practical commercial model for understanding how public sector requirements develop over time. Legal procurement descriptions on this page are simplified for orientation and should not be treated as legal advice.
