The most SME-friendly route into public sector work, and the one most small businesses have never heard of.
A Dynamic Purchasing System, almost always shortened to DPS, is a list of pre-approved suppliers that a public sector buyer draws from when they need work done. Rather than running a full tender every time they need a job doing, the buyer invites the suppliers already on the DPS to quote for it.
The critical difference between a DPS and a framework is timing. A framework opens for applications, closes, and then stays shut for the next two to four years. If you miss the window, you wait. A DPS stays open for its entire lifetime. You can apply on any day of any year, and if you meet the criteria you are admitted.
There is also no cap on numbers. A framework typically appoints a fixed number of suppliers per lot — perhaps eight, or twelve. A DPS admits everyone who qualifies. You are not competing against other applicants for a limited number of places; you are simply demonstrating that you meet a defined standard.
For a small business this changes the economics of public sector selling completely. Applying to a DPS is a qualification exercise, not a competition.
Both are ways of pre-approving suppliers so that individual jobs can be awarded quickly. They differ in ways that matter a great deal to a smaller supplier.
Entry timing. A framework has a fixed application window, usually every two to four years. A DPS is open continuously for its whole duration, which is commonly four to eight years.
Number of suppliers. Frameworks appoint a limited number and rank them. A DPS admits every applicant that meets the criteria, with no ceiling.
What you submit. A framework application is a competitive bid, scored against other applicants on quality and often price. A DPS application is a pass or fail assessment against stated selection criteria — insurance, accreditations, financial standing, relevant experience.
How work is awarded. Framework call-offs may be awarded by direct selection, by rotation or by mini-competition. On a DPS, every call-off must be competed among the relevant suppliers on the list, which means you always get a chance to quote.
New entrants. A framework is closed to new suppliers between windows. A DPS must admit qualifying suppliers at any point, so a business that only got its accreditations last month can still join.
The trade-off is that a DPS place guarantees you nothing on its own. It gets you invited to quote. You still have to win the individual call-offs.
The application is closer to a form-filling exercise than a bid, which is why it is such a good use of a small business's time.
Find the DPS. They are advertised on Contracts Finder and Find a Tender when they are first established, and they usually remain visible as open opportunities throughout their life. The notice will name the portal the buyer uses.
Register on the buyer's portal. Most councils and NHS trusts run their DPS through a system such as ProContract, In-Tend, Delta eSourcing or Jaggaer. Registration is free.
Complete the selection questionnaire. This is the standard set of questions about your company: registration details, insurance levels, financial accounts, health and safety accreditation, relevant certifications, and usually two or three examples of comparable work. Most of it is factual rather than persuasive.
Choose your categories and geography. A DPS is normally divided into categories of work and often into geographic areas. Select only the ones you can genuinely deliver. Being on a category you cannot service wastes everyone's time and damages your standing with the buyer.
Submit and wait for assessment. Buyers generally assess applications within a few weeks. If you fail on a specific criterion, you can usually fix the gap and reapply immediately — there is no need to wait for a new window.
For most small businesses a first DPS application takes a day or two. Subsequent ones take a couple of hours, because you are reusing the same accreditations, accounts and case studies.
Getting admitted is the easy part. Call-offs are where the actual competition happens, and small suppliers who treat a DPS place as a finish line tend to be disappointed.
Respond quickly. Call-off competitions often have much shorter deadlines than full tenders — sometimes a week, occasionally days. Suppliers who reply promptly and completely have a real advantage, because a meaningful proportion of those invited simply do not respond at all.
Answer every question asked. Call-off invitations are shorter than tenders but they are still scored. Skipping a question because it seems minor loses you the marks for it.
Price sensibly rather than cheaply. Call-off competitions are usually among a small number of suppliers in your category and area, not the entire market. You are not in a race to the bottom, so price the work properly.
Deliver well on the first one. DPS call-offs recur, and buyers remember. A supplier who does a clean job on a small first call-off is in a strong position for everything that follows on that system.
Stay on multiple systems. Because applications are cheap in time terms, it is entirely reasonable for a small firm to be on five or ten DPS arrangements across neighbouring councils, housing associations and NHS trusts. That is what turns an occasional opportunity into a steady flow.
A DPS place is not permanent by default. Buyers periodically ask suppliers to confirm that their information is still accurate, and the most common way small businesses fall off a system is an expired document.
Keep your insurance certificates current and upload renewals when they are issued. Keep accreditations such as CHAS, Constructionline, NICEIC or SafeContractor in date. Update your accounts when new ones are filed. If your turnover, staff numbers or capabilities change significantly, update the record.
Set a calendar reminder for every certificate expiry date you have. It takes ten minutes and it prevents the single most avoidable way of losing access to a pipeline of work.
If you do lapse and are removed, you can reapply as soon as you have fixed the gap. That is the advantage of a system that never closes.
DPS stands for Dynamic Purchasing System. It is a list of pre-approved suppliers that public sector buyers use to award work, which stays open for new applicants throughout its lifetime.
A framework opens for applications for a fixed window and then closes for two to four years, appointing a limited number of suppliers. A DPS stays open continuously for its whole duration and admits every supplier that meets the criteria, with no cap on numbers.
Yes. Applying to a DPS is free, as is registering on the buyer's procurement portal. Your only cost is the time to complete the selection questionnaire and any accreditations you need to obtain in order to qualify.
A first application typically takes a day or two, because you are gathering insurance certificates, accounts, accreditations and case studies for the first time. Once assembled, subsequent applications to other systems usually take a couple of hours.
No. A DPS place gets you invited to quote for call-offs in your categories, but you still compete for each one. The advantage is that you are competing against a small number of pre-approved suppliers rather than the entire open market.
Usually yes. Selection criteria ask for comparable experience rather than specifically public sector experience, so private sector work of similar type and scale is normally acceptable. This makes a DPS one of the most realistic first steps into public procurement.
Commonly four to eight years, though there is no fixed maximum and buyers set the duration when they establish it. Throughout that entire period new suppliers can join at any time.
They are advertised on Contracts Finder and Find a Tender, and typically remain listed as open opportunities for their whole life. Searching your sector on those portals, or using a matching service, will surface the ones relevant to your business.