The global competition for Public Cloud Migration Market Share is a complex, multi-layered battle fought on two main fronts: the battle for the destination (the cloud platform itself) and the battle for the services that get the customer there. As the overall market continues its powerful growth, with its value projected to expand from USD 120.14 billion in 2023 to USD 300.0 billion by 2032, the fight to be the primary partner in a company's cloud journey is incredibly intense. This expansion, driven by a consistent 10.7% CAGR, has created a dynamic competitive landscape where cloud giants, global system integrators, and specialized tool vendors are all vying for a piece of the massive migration services pie.

At the destination layer, the market share is a story of a clear oligopoly, dominated by the three major hyperscale cloud providers: Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). AWS, as the first mover and long-time leader in cloud computing, holds the largest share of the market's migrated workloads. Microsoft Azure is a very strong number two, leveraging its massive enterprise footprint and its deep integration with the Microsoft software stack to win a huge share of the enterprise migration market. Google Cloud is a strong third, competing on the basis of its expertise in data analytics, AI, and containerization with Kubernetes. The intense competition between these three giants to be the preferred destination for enterprise workloads is the foundational battle of the entire industry.

At the services layer, the market share for executing the migrations is dominated by the major global system integrators (GSIs) and IT consulting firms. Companies like Accenture, Deloitte, Capgemini, Wipro, and Infosys have built massive, multi-billion-dollar cloud migration practices. Their strategy is to act as the primary strategic partner for large enterprises undertaking a complex, multi-year cloud transformation. They have built huge teams of certified cloud architects and engineers, developed their own proprietary migration methodologies and accelerators, and have established deep partnerships with all the major cloud providers. Their ability to manage large-scale, complex projects gives them a commanding share of the high-value enterprise migration services market.

A third and crucial part of the market share picture is the ecosystem of independent software vendors (ISVs) who provide the specialized tools for migration. This includes a wide range of companies offering everything from discovery and assessment tools to data replication and cost management software. While the cloud providers offer their own native migration tools, many customers prefer the flexibility and often the superior features of these third-party tools, particularly for complex, multi-cloud environments. The market share in this segment is more fragmented, with a vibrant ecosystem of both established software companies and innovative startups. These tool vendors play a critical enabling role, often partnering with both the cloud providers and the system integrators to be part of the overall migration solution.

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