May 18, 2026
by Shreesh Singh / May 18, 2026
Cloud computing has moved from a cost-saving option to the default way businesses build and run software. Spending on it now runs into the hundreds of billions of dollars a year, and the market shows no sign of slowing.
The numbers point in two directions at once. Cloud adoption and spending keep increasing, while the hardest problems have shifted away from whether to move to the cloud and toward managing its cost, complexity, and security. Both sides matter, whether you are buying your first platform or optimizing a large estate.
To see where cloud computing really stands in 2026, it helps to read the market forecasts from research firms alongside the on-the-ground signal from buyers. On G2, 190+ products compete in the Cloud Platform as a Service (PaaS) category, and their reviews show how teams actually adopt and rate these tools. The statistics below pull both together, and each figure is sourced to the organization that produced it.
In this piece, I pull together the cloud computing statistics that matter most in 2026, grouped by how fast adoption is growing, what the market looks like, who is winning, where data lives, and what review data says about the tools themselves.
Here is a snapshot of where cloud computing stands this year, across market value, competition, adoption, infrastructure, and cost.
| Theme | Key cloud computing statistic | What it means | What G2 data shows |
| Market size | Public cloud spending of $723.4 billion in 2025, on track for $1.48 trillion by 2029 | Spending on cloud keeps increasing | 198 products compete in G2's Cloud Platform as a Service category |
| Market share | AWS 28%, Microsoft 21%, Google 14% | Three hyperscalers hold 68% of the market | G2 Leaders include Salesforce Platform, AWS Lambda, and Azure Functions |
| Adoption | 54% of enterprise and 63% of SMB workloads run in public cloud | The cloud is now the default for new workloads | Buyers report about 66% average user adoption |
| Infrastructure | 1,360 hyperscale data centers hold 48% of capacity | Capacity is consolidating toward hyperscalers | PaaS infrastructure features average 87% to 90% |
| Cost and security | 29% of cloud spend is wasted; 54% of cloud data is sensitive | Control and trust are the real challenges, not capacity | Average payback is about 13 months, with a 63 NPS |
Now let us go deeper into each area and what the figures actually signify.
To keep this list accurate and current, I combined primary research from the organizations that produce these numbers with G2's own review data.
Cloud adoption keeps climbing in 2026, but it is now close to saturation. The overwhelming majority of organizations build with cloud-native methods by default, and public cloud has become the home for the bulk of enterprise and small-business workloads alike. With adoption near its ceiling, the advantage no longer comes from being in the cloud; it comes from moving more of the estate there and running it well.
What G2 reviews reveal: Adoption spans every company size. Among reviewers of Cloud Platform as a Service products on G2, 48% come from small businesses, 26% from mid-market companies, and 26% from enterprises.
For most buyers, yes. Reviewers report that cloud platforms recoup their cost quickly and keep customers satisfied, and independent analysis links disciplined cloud operations to substantial financial value over the rest of the decade.
What G2 Data reveals: The economics hold up and satisfaction runs high. On average, the Cloud Platform as a Service products buyers review give a return on investment (ROI) in about 13 months and earn a 63 Net Promoter Score, with 90% of reviewers saying their product meets requirements, 88% recommending it, 89% finding it easy to use, 90% feeling it is heading in the right direction, and 66% average user adoption.
Those returns line up with broader analysis. McKinsey estimates that cloud could represent $3 trillion in EBITDA value by 2030 and that leading enterprises can capture 60 to 70 percent of their desired financial goals when they pair cloud migration with strong operating practices.
Cloud computing is one of the largest and fastest-growing segments in technology. Worldwide public cloud spending already runs into the hundreds of billions of dollars a year and keeps growing at a double-digit pace, on a path toward the trillion-dollar-plus range before the end of the decade. Its pull is reshaping the wider technology budget along with it.
Three hyperscalers are winning the cloud market. Amazon, Microsoft, and Google together control roughly two-thirds of all cloud infrastructure spending, with AWS still in front, Microsoft second, and Google third. The rest of the field stays fragmented, though AI demand is starting to lift newer specialist providers toward the top tier.
Comparing the underlying providers? Browse options and verified reviews in G2's Infrastructure as a Service (IaaS) Providers category.
Public cloud statistics point to a clear trajectory: both spending and data keep moving there. More than a quarter of organizations plan to increase their public cloud spend in the coming year, most now keep data in public cloud, and a meaningful share overrun their budgets along the way.
Hybrid and multi-cloud strategies are now the default rather than the exception. The typical enterprise spreads its workloads across more than one public cloud provider and layers dozens of SaaS applications on top, while hybrid cloud keeps gaining ground among developers. The upside is flexibility; the cost is that every added environment brings its own billing, security, and governance to manage.
Tip: Check out our guide on building a hybrid cloud architecture, including its top features, benefits, and challenges.
The data living in the cloud is growing fast, and the market that stores it is on track to roughly triple over the next five years. Hyperscale object storage has reached a scale that is hard to picture, holding hundreds of trillions of items, even as the underlying storage hardware market grows more slowly. North America remains the largest region, and object storage the dominant type.
What G2 Data reveals: Storage is a strength of the platforms buyers use. Across G2's 2026 Grid Report, the storage feature scores 88% on average.
Cloud data center capacity is expanding rapidly, and hyperscalers are driving most of the growth. They already operate well over a thousand of the largest facilities and hold close to half of global capacity, a share set to keep rising through the end of the decade as enterprise on-premises shrinks. The spending behind the buildout is climbing faster than almost any other category of IT, and it is pushing data center energy use sharply higher.
In practice, yes. The large majority of container-using organizations now run Kubernetes in production, and the Cloud Native Computing Foundation describes it as the de facto operating system for AI. Most teams hosting generative AI models manage their inference workloads on it, and the barriers that remain are now cultural rather than technical.
The biggest cloud security risk is unprotected sensitive data. More than half of everything stored in the cloud is now classified as sensitive, yet only a small fraction of organizations encrypt most of it, leaving a wide gap between the value of the data and the protection around it. Cloud assets have also become attackers' main target, and most breaches now begin with stolen or compromised credentials.
What G2 Data reveals: Security is also where buyers set a high bar. Across G2's 2026 Grid Report, the security feature averages 90%, among the highest-rated capabilities in the category, a reminder that teams expect strong protection built into the platforms they choose.
Cloud spend is hard to manage because waste is climbing again and costs are fragmented across providers, services, and teams. A meaningful share of every cloud dollar is still wasted, and for several years running, controlling that spend has ranked as the single biggest cloud challenge, ahead of even security. The complexity of AI and a steady stream of new services are making the bill harder, not easier, to predict.
Looking to rein in cloud waste? Compare options and verified reviews in G2's Cloud Cost Management category.
Cloud growth is not slowing, but the advantage has shifted. The market is larger than ever and consolidating toward a few hyperscalers, yet the companies that win in 2026 are the ones that control cost, secure their data, and run modern, cloud-native platforms well. That is why challenges like wasted spend, sensitive data, and management complexity now matter more than raw adoption.
On the tooling side, the bar is high. Buyers report strong satisfaction, a 63 average Net Promoter Score, and roughly 13-month payback on the cloud platforms they adopt.
To understand the fundamentals behind these numbers, learn more about cloud computing and how it works.
*This article was originally published in 2024. It has been updated with new information.
Shreesh Singh is a Senior AEO/SEO Content Specialist at G2 with over five years of experience in B2B SaaS, helping buyers confidently navigate and evaluate software. He specializes in AEO strategy and research in AI-driven discovery. His work focuses on translating search intent and data into high-impact content that drives buyer engagement. Outside of work, you’ll find him trying new caffeinated drinks, making music, or diving into movies.
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