Winning digital delivery work
Digital Outcomes and Specialists (DOS) Explained
Digital Outcomes and Specialists (DOS) is a government framework for buying digital delivery - outcomes, teams and individual specialists - rather than commodity cloud. Unlike G-Cloud, buying is not off-catalogue: the buyer publishes an opportunity, you respond, and they shortlist and score. So the written response, not the listing, wins the work.
Published by BidSquirrel · checked against legislation.gov.uk and gov.uk · last reviewed July 2026
If your business builds services, ships software, runs agile delivery or supplies specialists - developers, designers, delivery managers, user researchers - the public sector is a large and steady buyer of exactly that. A great deal of it is bought through Digital Outcomes and Specialists (DOS), a government framework built specifically for digital delivery rather than for commodity technology. Understanding how DOS works, and how it differs from its sibling G-Cloud, is the difference between a listing that sits idle and a pipeline of won delivery work.
This guide explains what DOS is, why it exists alongside G-Cloud, and - the part that decides whether you win - how its further-competition process actually works for a smaller supplier. DOS is a Crown Commercial Service framework, and CCS became the Government Commercial Agency (GCA) on 1 April 2026; existing CCS and RM-numbered frameworks remain valid, so the notes here hold. The framework has also iterated through several numbered versions over the years, so always confirm the current live route on the framework’s online catalogue before you rely on a specific iteration.
What DOS is - and what it is for
Digital Outcomes and Specialists is a government framework for buying digital delivery. It exists to let public bodies procure three related things quickly and compliantly: a digital outcome (a piece of work delivered against a need, such as building or improving a service), a team to deliver it, and individual specialists to fill defined roles. It is the route by which departments, councils, the NHS and arm's-length bodies buy agile software delivery, user research, service design, data work and the people to do it.
The framework is run by Crown Commercial Service - now the Government Commercial Agency following the 1 April 2026 transition, with existing CCS/RM-numbered frameworks unaffected - and lives on the framework’s online catalogue alongside G-Cloud. Getting appointed to DOS means passing the framework's declarations and submitting your service or specialist details; but appointment, as with any framework, is only access. On DOS the work is won afterwards, opportunity by opportunity, which is where most of the craft lies.
Because DOS is built for people and delivery rather than products, the buyer is assessing capability and approach, not a fixed spec on a shelf. That single fact shapes everything about how you win through it.
DOS vs G-Cloud - the difference that matters
DOS and G-Cloud are siblings on the same marketplace, and suppliers routinely confuse them - but they are bought in fundamentally different ways, and treating one like the other is the most common mistake. G-Cloud is a catalogue for commodity cloud: cloud hosting, cloud software and cloud support, listed with descriptions and pricing, that a buyer can search, compare and often award directly from your listing without a further competition. On G-Cloud, the listing largely is the sale.
DOS is not a catalogue you get bought from. It is a framework you get invited to compete through. The buyer publishes a specific opportunity - a defined outcome, team or specialist need - suppliers who match respond, and the buyer shortlists, asks for evidence, and scores those responses to pick a winner. There is no off-catalogue direct purchase of a build; there is a further competition every time. So on DOS the written response wins the work, not the listing.
The practical consequence is where you spend your effort. On G-Cloud, effort goes into a clear, findable, well-priced listing. On DOS, a good profile only gets you into the room - the win comes from responding fast to the right opportunity and writing evidence-led answers that score against the buyer's published criteria. If you are weighing which route fits your business, our companion G-Cloud guide covers the catalogue side in full.
- G-Cloud: commodity cloud hosting, software and support, bought from a catalogue - often by direct award from your listing, no further competition
- DOS: digital outcomes, teams and specialists, bought through a further competition - buyer publishes, you respond, they shortlist and score
- G-Cloud craft: a clear, findable, competitively priced listing
- DOS craft: a fast, tailored, evidence-led written response to each opportunity
- Both live on the framework’s online catalogue and are Crown Commercial Service (now GCA) frameworks - but they are not interchangeable
How the DOS process works for an SME
Once you are appointed to DOS, winning work follows a repeatable rhythm. A buyer posts an opportunity on the framework’s online catalogue describing what they need, the budget or day-rate context, the location and working arrangements, and the essential and nice-to-have criteria. Matching suppliers submit a short response - typically evidence against each stated criterion, and sometimes indicative pricing. The buyer scores those responses, shortlists a handful, and takes the shortlist through a further evaluation stage before awarding.
For an outcome or team opportunity, that later stage is usually a written proposal and a presentation or assessment against the published criteria and weightings. For a specialist opportunity, it is often a review of the named individual's evidence and, frequently, an interview. Either way the shape is the same as any competitive bid: an essential-criteria gate you must pass, then a comparative, weighted score that decides the winner.
The SME-relevant point is that this process is genuinely open to smaller suppliers - it is designed around capability and evidence, not scale. A three-person delivery team that answers the criteria precisely, with real project evidence and a named, credible specialist, beats a large firm that submits generic capability boilerplate. The discipline that wins is answering the question the buyer actually asked, in their language and in their weighting order - the same discipline that wins any scored public bid.
Writing the response that wins the opportunity
Because DOS is decided by a further competition, the written response is where the work is won or lost - and the failure mode is always the same: generic capability prose that answers the supplier's favourite pitch rather than the buyer's stated criteria. Each essential and nice-to-have criterion is scored on its own, so answer each one directly, lead with the evidence, and mirror the buyer's exact wording. A first-round response that reads like a brochure is filtered out before anyone sees your best work.
Ground every claim in a concrete example. "Experienced in agile service delivery" scores far below "delivered a GDS-aligned alpha for [named public body] in [timeframe], moving [service] from [baseline] to [outcome], evidenced by [artefact]". At the shortlist and proposal stage, match your answer to the published weightings - if technical approach carries the most marks, that is where your strongest evidence and most words belong, not in company background the buyer did not ask about.
One caveat on specialists: the person you name and evidence is the person the buyer expects to deliver. Substituting a different, weaker resource after award is both a scoring risk if spotted and a delivery risk if not - name who you will actually field. This evidence-first, criterion-by-criterion discipline is exactly what BidSquirrel helps with: it scores your DOS response the way the buyer's panel would, flags the generic answers that will filter you out, and drafts each answer with you from your own real project evidence - your final words stay yours.
The framework has iterated - check the live route
DOS is not a single fixed thing. It has run through several numbered iterations over the years - DOS, DOS2, and successors - and Crown Commercial Service periodically closes one iteration and opens a replacement, sometimes reshaping the categories or folding capability into adjacent routes as government's digital buying strategy evolves. Iteration and RM numbers refresh on their own cycle, so a specific version number quoted anywhere - including here - has a shelf life.
Two things stay stable enough to plan around. First, the government keeps a dedicated route for buying digital outcomes, teams and specialists distinct from the G-Cloud catalogue, because the two need buying in genuinely different ways. Second, both live on the framework’s online catalogue, which is the single source of truth for what is currently open, which iteration is live, and when the next appointment window falls.
So treat the mechanics in this guide as durable and the version specifics as perishable. Before you rely on a particular iteration or plan an appointment bid, check the framework’s online catalogue for the current live framework, its categories and its timelines - and if you supply commodity cloud alongside delivery, read our G-Cloud guide, because many digital suppliers belong on both.
Take this to a live tender
Reading is the groundwork. When you are ready to act on it, BidSquirrel scores live tenders from major GB sources against your business, tells you which are worth bidding, and drafts the response with you - free to start, no card.
Frequently asked questions
What is the difference between DOS and G-Cloud?
G-Cloud is a catalogue for commodity cloud - hosting, cloud software and cloud support - that buyers can search and often award directly from your listing with no further competition. Digital Outcomes and Specialists (DOS) is for digital delivery - outcomes, teams and individual specialists - and is never bought off-catalogue: the buyer publishes an opportunity, matching suppliers respond, and the buyer shortlists and scores. On G-Cloud the listing wins the work; on DOS the written response does.
How does a small business win work through DOS?
First you get appointed to the framework by passing its declarations and submitting your service or specialist details. Then, for each opportunity a buyer publishes, you respond with evidence against their essential and nice-to-have criteria; they score the responses, shortlist a few, and take the shortlist to a proposal, assessment or interview stage before awarding. It is open to SMEs by design - precise, evidence-led answers beat large-firm boilerplate.
Is DOS a framework or a catalogue?
It is a framework you compete through, not a catalogue you get bought from. Being appointed to DOS is access, not a sale - the actual work is won afterwards through a further competition on each published opportunity, decided by how well your written response scores against the buyer's criteria.
Where do I find DOS opportunities?
On the framework’s online catalogue, the government service that hosts both DOS and G-Cloud. It is also the place to confirm which iteration of the framework is currently live and when the next appointment window opens - the version numbers refresh over time, so check the source rather than relying on a quoted iteration.
Is Crown Commercial Service still running DOS?
The frameworks continue. Crown Commercial Service became the Government Commercial Agency (GCA) on 1 April 2026, and existing CCS and RM-numbered frameworks - including DOS and G-Cloud - remain valid and in use. The transition is an organisational change, not a cancellation of the frameworks you may already be appointed to.
Can I be on both DOS and G-Cloud?
Yes, and many digital suppliers should be. If you sell commodity cloud hosting, software or support, that belongs on G-Cloud; if you deliver outcomes, teams or specialists, that belongs on DOS. They are separate appointments bought in different ways, so being on both lets you be found for catalogue purchases and compete for delivery work.
Win the digital opportunity, not just the listing
On DOS the further competition decides everything, and BidSquirrel is built for exactly that: it scores live opportunities from major GB sources against your business, tells you which are worth responding to, and drafts each criterion-by-criterion answer with you from your own project evidence. Free to start, no card - Pro is the full toolkit at £49.99/mo. The evidence and the final words stay yours.

