UK supplier guide
G-Cloud 15:
lots, dates and how suppliers win call-offs
G-Cloud 15 is the public sector’s cloud framework, let as an open framework under the Procurement Act 2023. Getting on it is the first step; winning call-offs is the work.
Search current cloud and software tenders →Checked against primary sources5 sources linked below
- Read the agreement
- Register before it opens
- Answer the lot's criteria
- Make the service findable
Call-offs are the revenue
With or without competition; your listing and evidence decide.
What is G-Cloud 15?
A Government Commercial Agency framework for buying cloud hosting, software and support, replacing G-Cloud 14 and Cloud Compute 2.
| Detail | G-Cloud 15 |
|---|---|
| Agreement number | RM1557.15 |
| Run by | Government Commercial Agency (formerly Crown Commercial Service) |
| Type | Open framework under the Procurement Act 2023 |
| Term | Four years from 6 August 2026, reopening after 18 and 36 months (GCA · RM1557.15) |
| Estimated value | About £14 billion over the term (GOV.UK release) |
| Call-off length | Up to 60 months |
| Supplier fee | 0.75% of call-off charges invoiced (Find a Tender · 067801-2025) |
| Replaces | G-Cloud 14 (including its Lot 4) and Cloud Compute 2. G-Cloud 14 expires on 28 October 2026 |
What are the G-Cloud 15 lots?
Five lots: two for infrastructure and platform hosting, two for software, one for cloud support.
Five lots
Lot 1a and 1b
IaaS and PaaS hosting; 1b is for services above OFFICIAL security classification.
- IaaS and PaaS hosting; 1b is for services above OFFICIAL security classification.
- Infrastructure software as a service (I-SaaS).
- Other software as a service (SaaS) applications.
- Cloud support services to set up and maintain cloud software or hosting.
How do you get from a G-Cloud listing to call-off work?
Treat the framework as entry and the call-offs as the work to win.
- Start with the source01
Read the agreement
Check the lot, term and reopening points on GCA's agreement page. - Define the scope02
Register before it opens
Complete central digital platform registration and core supplier information. - Read the evidence03
Answer the lot's criteria
Write to the published quality, social value and price weightings. - Make the decision04
Make the service findable
Describe and price each service in the words buyers search for. - Name the next action05
Watch for call-offs
Track buyers' cloud plans and prepare evidence for further competitions.
A supplier’s review sequence, based on the primary sources below. It is not a measured outcome or a prescribed buyer timetable.
How were suppliers evaluated?
On quality, social value and price, set out in the quality questionnaire and the how-to-tender attachment.
| Lot 1a criterion | Type | Weighting |
|---|---|---|
| Quality cloud services | Quality | 40% |
| Maximising buyer value | Quality | 40% |
| Understanding social value | Quality | 10% |
| Price for onboarding | Price | 5% |
| Price: discount | Price | 5% |
When can new suppliers join G-Cloud 15?
When the open framework reopens, planned after 18 months and again after 36 months.
An open framework lets new suppliers in at set reopening points, unlike a closed framework that stays fixed for its term. Watch Find a Tender for the reopening notice and register on the central digital platform before it opens.
Tender notice published
The original competition to join.Framework starts
Four-year term begins.First reopening
Planned after 18 months; confirm the date in GCA’s notice.
How do public buyers call off from G-Cloud 15?
With or without further competition, in every lot.
A buyer needs a cloud service
Direct award
The buyer selects from catalogue services without a further competition, following the framework’s rules. Your service description and price must be findable and clear.Further competition
The buyer runs a mini-competition among framework suppliers. Lot 3 notes that competing is likely to give better value than default day rates.
How do suppliers win G-Cloud work after getting on?
Treat the listing as a shop window and watch for the buyers who are planning cloud spend.
- Before you start01
Use the current documents
Check the primary publication and later changes before using the sequence below. - Check 202
Register on the central digital platform
Bidding to join requires registration and core supplier information (three-step guide). - Check 303
Write service descriptions buyers search for
Use the words a buyer would type, state what is included and price it clearly. - Check 404
Track buyers’ cloud plans
Pipeline and planned procurement notices show who intends to buy. Set up free alerts and search current notices. - Follow through05
Prepare for further competitions
Keep case studies, social value commitments and evidence ready. Keep the evidence with the bid.
An editorial order of work, not a buyer's fixed timetable. The current notice and documents determine participation and submission.
Getting on the framework is the entry ticket, not the contract.
An open framework
G-Cloud 15 reopens to new suppliers at planned points.Five lots
Hosting, two software lots and cloud support.Call-offs are the revenue
With or without competition; your listing and evidence decide.
Free search across Find a Tender and Contracts Finder; try “cloud”, “SaaS” or “hosting”.
What else should you know about G-Cloud 15?
Check these points before committing your team’s time.
What is G-Cloud 15?
When does G-Cloud 15 reopen?
When does G-Cloud 14 end?
What does it cost a supplier to be on G-Cloud 15?
Where do I apply for G-Cloud?
Is G-Cloud the same as Digital Outcomes?
Where can you check the evidence?
Read the primary publication and the buyer’s current documents before acting.
| Source | What it supports |
|---|---|
| G-Cloud 15 · Government Commercial Agency ↗ | Agreement number, term, lots and reopening, read 18 October 2026. |
| G-Cloud relaunches · GOV.UK, 10 August 2026 ↗ | £14 billion estimate, 60-month call-offs, G-Cloud 14 expiry. |
| G-Cloud 15 tender notice · Find a Tender ↗ | Lots, award criteria, supplier fee and call-off methods. |
| G-Cloud 15 tender documents · GCA ↗ | How to tender, quality questionnaire and schedules. |
| Supplier registration guide · Cabinet Office ↗ | Central digital platform registration. |
Which guide answers your next question?
Follow the part of the bid you need to work on next.
