Top cloud providers (which we've used on previous projects) with a brief summary of each:

• Amazon Web Services (AWS): AWS is the most popular cloud provider, offering a wide range of cloud computing services, including computing, storage, databases, analytics, machine learning, and more. It provides businesses with a highly scalable, secure, and flexible cloud infrastructure that can be easily customised to meet their unique needs.

• Microsoft Azure: Azure is a cloud computing platform that includes a wide range of services, including virtual machines, storage, databases, analytics, and more. It offers a highly secure and flexible cloud infrastructure that can be easily integrated with other Microsoft services, such as Office 365 and Dynamics 365.

• Google Cloud Platform (GCP): GCP is a cloud computing platform that provides a wide range of services, including compute, storage, databases, networking, and more. It offers a highly scalable and secure cloud infrastructure that can be easily customised to meet the unique needs of businesses of all sizes.

• IBM Cloud: IBM Cloud is a cloud computing platform that includes with a wide range of services, including compute, storage, databases, analytics, and more. It offers a highly secure and flexible cloud infrastructure that can be easily integrated with other IBM services, such as Watson and Blockchain.

• Oracle Cloud: Oracle Cloud is a cloud computing platform that provides businesses with a wide range of services, including compute, storage, databases, analytics, and more. It offers a highly secure and scalable cloud infrastructure that can be easily integrated with other Oracle services, such as Oracle Database and Oracle Applications.

These cloud providers offer businesses highly scalable, secure, and flexible cloud infrastructures that can be easily customised to meet their unique needs.

AWS is the most popular as it started earlier than others and allowed for running virtual machines - which meant it was easy for customers to lift and shift to the cloud environment. Microsoft follows closely behind, mainly because, well, it's Microsoft and is the obvious choice for Microsoft houses.

The main thing to note is that each cloud provider has its own strengths and weaknesses, and businesses should carefully evaluate each provider to determine which one is the best fit for their specific requirements.