Which types of cloud computing are you using to enhance your business’s digital software? From IaaS to Saas to PaaS, the types of cloud computing available on the market are becoming more and more advanced each day. Understanding the difference between the three types of cloud computing, as well as the benefits each can bring your business, will help ensure that your infrastructure is as tailored to your needs as possible, as well as being completely future-proofed.

So what exactly is cloud computing?

Simply put, cloud computing is a way of delivering hosted services to your business over the Internet. The three main types of cloud computing on offer are IaaS (infrastructure as a service), PaaS (platform as a service) and SaaS (software as a service). These types of cloud computing differ from more traditional methods of web hosting thanks to three main characteristics; scalability, remote management and cost effectiveness as a result of their inherent elasticity.

As this new form of web hosting has become more popular with businesses worldwide, the types of cloud computing can also be defined by public, private and hybrid clouds. If you’d like to know more about these types of cloud computing, we’ve looked into the technology in more detail here.The more saturated the cloud market becomes, the more options and perks are on offer to your business – so, whether you’re looking for types of cloud computing to aid you with flexible working, or you need infrastructure that can cope with huge amounts of data processing, the chances are that the latest and greatest types of cloud computing have a solution ready and waiting for you.

IaaS, SaaS, PaaS: 3 types of cloud computing

Making scalability a priority with Infrastructure as a Service

The Definition: ‘A model in which a third-party provider hosts servers, storage and other virtualised compute resources and makes them available to customers over the Internet’.

What does this mean for your business? If you’re thinking of employing types of cloud computing to suit your growing business’s needs, IaaS could be the solution you’ve been waiting for.  When it comes to types of cloud computing, IaaS is the most scalable, allowing users to build up resources as and when they need them. As well as helping your infrastructure to grow easily alongside your developing team, types of cloud computing like IaaS that are developed with elasticity in mind mean you’ll never spend more than you need to on your systems.

Find out more about making the most of IaaS here.

Ensuring your files are easily accessible with Software as a Service

The Definition: A software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet’.

What does this mean for your business? While IaaS makes sure your files can be accessed from anywhere with an Internet connection, types of cloud computing that incorporate SaaS are more of a subscription based model, letting you choose the software you want to use from a shared hosting space in the cloud, either as a business or as a consumer. Perhaps you’re on the hunt for secure accounting and invoicing software, a performance monitoring system or even simply a messaging app for your office. Whatever your subscription needs, SaaS is one of the best types of cloud computing solutions when it comes to easily and securely accessing a whole range of services, without costing the earth.

IaaS, SaaS, PaaS: 3 types of cloud computingReducing the need for physical hardware with Platform as a Service

The Definition: A model in which a third-party provider hosts application development platforms and tools on its own infrastructure and makes them available to customers over the Internet’.

What does this mean for your business? One of the least  mature types of cloud computing,a PaaS provider builds an optimised environment for you to install applications and data sets on. Allowing you to rent virtualised servers and services used to run existing applications, PaaS lets you easily design, develop, test and host applications – which means you’re free of the need to install in-house hardware and software every time you run a new application.

Whether you’re interested in incorporating all 3 types of cloud computing into your business model, or if you’re making the change to a digital workplace bit by bit, our secure solutions are always made simple. Our expert team are always on hand to guide you through the types of cloud computing that will optimise the changes and improvements to your systems. Take a look at our cloud pages to find out more about making a scalable, cost efficient, easily accessible infrastructure a reality.  

Get in Touch

(Read Data Terms Policy)

Client Feedback

We are delighted to be working with CIS, the project is already looking well organised and innovative. CIS delivers a prompt professional service with trusted knowledge we can rely on at all times.

John Story, Head of IT

St Paul’s Cathedral

CIS have been our go-to IT supplier for nearly 20 years, and throughout that time they have been flexible, consultative, and above all putting our business at the forefront of their advice. I would be very pleased to recommend them for any company that needs to have a real partnership with their IT company.

Graham Hughes, Managing Director

Rovema UK Ltd


Keep Up To Date


CIS Overview



  • CIS Private Cloud
  • Infrastructure as a Service
  • Backup & Disaster Recovery
  • Remote Desktop Services


  • Anti-Virus & Ransomware
  • Extensive Encryption
  • Firewall & Next-Gen UTM
  • Penetration Testing
  • Digital Rights Management
  • Phishing
  • Mobile Device Management


  • Exchange Server Hosted & On Prem
  • Mail365
  • Unified Communications
  • Office 365
  • Mobile & VoIP Telephony
  • Internet Connectivity


  • Consultancy
  • Analysis & Audit Services
  • User Training & Enablement
  • Fully Managed Support


Since its inception in 1989 CIS’ philosophy has always been the same. We believe that in order for our team mates to provide the best possible service to our clients and to remain motivated and inspired themselves, we have to create a positive and stimulating working environment. One that encourages ambition, a continued exchange of ideas and dialogue, hard work, performance and loyalty. We have always rewarded our staff for going the extra mile and for embracing our company ethos but we also aim to make their working experience enjoyable and fun, working on the basis that humour can go a long way and fairness and respect are paramount.



Even though we say this ourselves, our portfolio is first class. We offer a range and quality of Cloud Services that can cater for all our customers’ business goals and aspirations. It’s our job to find the perfect solution for your requirements and you’ll benefit from the research and development carried out by our team to find the ideal system solutions for you.



Partners are vital to the ongoing success of our company so we nurture our award-winning network of like-minded organisations, building up mutual trust and respect in our working practices that can only benefit our customers.



It has always been of key importance to CIS to achieve high levels of productivity and to ensure that we remain s highly effective, lean and fast-moving organisation. It allows us to keep ahead of the game and to spot and act upon new products and trends whenever possible. By keeping on our toes, we can pass on benefits to our clients and partners without the need for time consuming learning curves.