The UK Government's G-Cloud is a program designed to help government organizations in the United Kingdom buy common IT services that use cloud computing more easily. The G-Cloud consists of:

According to the Crown Commercial Service, in the past five years, the G-Cloud helped achieve £14.72 billion in sales, and 37.43% of those sales came from small and medium-sized businesses. The G-Cloud is currently in its 14th version and works with companies like Google, Microsoft, and Amazon Web Services, as well as small and medium-sized businesses.

Development

After talking with industry experts, Ren Reynolds created an "app store" model using a new method for Framework Contracts. This project was led by SRO Chris Chant and was part of the Cabinet Office Efficiency and Reform Group. This approach allowed government departments to choose services directly from a list, instead of holding competitions. It relied on fixed prices for specific services.

The UK Government started the G-Cloud program to provide computing resources, such as storage, processing power, and complete software applications, through cloud computing. In March 2011, the government announced plans to use 50% of new IT spending for cloud-based services by 2015. This also aimed to support small and medium-sized businesses (SMEs) by increasing the number of suppliers.

To help SMEs, Stephen Allott, a British business leader and founder of the Cambridge Computer Lab Ring, became the first Crown Representative for SMEs. In the Cabinet Office, Allott led changes in how the government buys services. These changes included removing Pre-Qualification Questionnaires for small purchases, creating a website called Contracts Finder, and integrating the G-Cloud program. In 2015, Allott joined G-Cloud to encourage its use by government workers.

G-Cloud made agreements with service providers and listed these services on a public website called the Digital Marketplace. The "cloud first" policy required the central government to buy IT services through the cloud unless another method was shown to be cheaper.

The program started in 2012 and invited companies to apply for contracts. By May 2013, more than 700 suppliers were registered, with over 80% being SMEs. In June 2013, G-Cloud became part of the Government Digital Service (GDS) and is now managed by the Crown Commercial Service.

Structure

Cloud-based services are shown to buyers in a catalog called the Public Procurement Gateway (PPG). The PPG helps public sector organizations purchase cloud-based services and find information about the G-Cloud. The PPG is managed by the Crown Commercial Service.

Before 2024, buying services was done through the Digital Marketplace, a public database that listed G-Cloud services. The Digital Marketplace was replaced by the Public Procurement Gateway in G-Cloud 13.

Suppliers describe the services they offer as part of a framework agreement. These details are shared in the Digital Marketplace. Information includes the Business Impact Level the service is approved for, and how users are added to or removed from the service. A key rule is that users must be able to leave the service if they choose to switch to another provider offering the same service.

Starting with G-Cloud 9, services are divided into 3 groups.

Major companies like Amazon Web Services (AWS) and Google were not allowed to join the UK government’s G-Cloud program in 2012 (G-Cloud 3). AWS was later allowed to join in 2013, and Google was allowed to join in 2018.

At first, G-Cloud planned to make calls every three to six months. Now, calls happen every 12 to 18 months. Contract calls are listed on the Government Contract Finder website.

Significance

The G-Cloud was the most common of several buying plans designed to help small and medium-sized businesses (SMEs) compete fairly with larger companies. During Stephen Allott’s time as Crown Representative for SMEs (2011–2015), the share of central government spending on goods and services from SMEs increased from 6.8% in 2010 to 27.1% by 2015. This included both direct and indirect spending. This amount was higher than the government’s goal of 25% for 2015. In 2019, 90% of 4,200 companies using the G-Cloud were SMEs.

A new version of the G-Cloud plan is usually released every 6 to 9 months. As of November 2025, the current version is G-Cloud 14, which became available for purchasing services on 29 October 2024.

According to the Crown Commercial Service, sales through the G-Cloud grew from £18.2 million in 2012/13 to £2.91 billion in 2024/25. Between 2012 and 2019, total sales reached £4.79 billion. Over 30,000 public sector organizations use the current G-Cloud framework.

Computer Weekly reported that the original G-Cloud introduced a level of transparency that was rare in public sector buying, where suppliers often charged very different prices for the same services to different government groups. The publication also noted that the current G-Cloud has not fully met the government’s goals for its use, possibly because the framework has changed significantly since its launch.