Infrastructure as a Service explained
IaaS is the foundational layer of cloud computing. Instead of buying, housing, and maintaining physical servers, you provision virtual machines, storage, and networks from a provider like Microsoft Azure or AWS, paying only for what you use. You retain control over the operating systems and applications running on that infrastructure, while the provider handles the physical hardware and data centre.
This makes IaaS flexible and scalable: you can spin up servers in minutes, scale capacity up for busy periods and back down afterward, and avoid large up-front capital costs. It sits between SaaS (where the provider manages everything) and on-premises (where you manage everything) — giving you cloud economics with control over your environment.
Why IaaS matters for your business
Owning physical servers means large up-front costs, ongoing maintenance, limited scalability, and a single point of failure sitting in your building. IaaS replaces that with flexible, resilient infrastructure you can scale on demand and reach from anywhere — ideal for growth, seasonal demand, disaster recovery, and modern applications.
But with control comes responsibility: in the IaaS model, securing the operating systems, applications, configurations, and access is on you, not the provider. Misconfigured cloud infrastructure is a common and costly source of breaches, which is why IaaS needs the same disciplined management and security as any other part of your environment.
Scalogic designs and manages your cloud infrastructure
Scalogic designs, deploys, secures, and manages IaaS environments — primarily on Microsoft Azure as a Microsoft partner — as part of our cloud services. We architect infrastructure that scales with you, configure it securely, and manage the operating systems, patching, and access that are your responsibility in the cloud.
With 24/7 monitoring and our SOC watching for misconfiguration and threats, your cloud infrastructure stays secure, available, and cost-controlled. See our cloud services.
Frequently asked questions
What's the difference between IaaS and SaaS?
IaaS provides raw infrastructure (servers, storage) that you run your own systems on. SaaS delivers ready-to-use applications. IaaS gives more control; SaaS gives more convenience.
Who secures IaaS — me or the provider?
The provider secures the physical infrastructure; you're responsible for the operating systems, applications, configuration, and access. Scalogic manages that responsibility for you.
Is IaaS cheaper than owning servers?
Often, especially when you account for hardware, maintenance, and scalability. You pay for what you use. Scalogic helps design and right-size it to control costs.