Data tracking the battle for market share in cloud computing services shows IBM is a leader in one segment but Amazon Web Services dominates in two other categories. However, Google and Microsoft are surging.

Synergy research Group reports that cloud-related spending “has now reached well over $8 billion and continue to grow at 50% per year.”

IBM, which operates a big data center at its RTP campus, is the leader in private cloud services.

However, in the two other big categories – Infrastructure as a Service or IaaS and Platform as a Service or PaaS – Amazon dominates competitors such as Microsoft and Google.

So says research firm Synergy Research Group.

“In the managed private cloud segment IBM is the market leader, followed by Amazon, Rackspace and NTT,” Synergy reports. 

“AWS” still has a 45% share of the worldwide public IaaS market, despite Microsoft and Google having much higher growth rates, the firm adds.

But in PaaS, “competition is tighter” with AWS leading Salesforce, Microsoft and IBM.

And the PaaS is growing fastest of the three.

“While public IaaS is the biggest of the three main cloud segments, public PaaS is growing much more strongly,” Synergy says. “The database, IoT and analytics sub-segments within PaaS are all growing by 100% or more per year.”

And the trend in the industry favors the big cloud players, or “tier 1” firms.

“Scale is the name of the game, especially in the public cloud markets,” said John Dinsdale, a Chief Analyst and Research Director at Synergy Research Group.

“Amazon, Microsoft and Google continue to invest huge amounts in their hyperscale data center infrastructure, and all three have recently expanded their data center footprints and also announced plans to open up more geographic regions in the coming months. This scale is the prime reason why they are able to gain market share and pressure smaller players into consolidation or refocusing their cloud activities. Some tier 2 players are looking to buck the trend and at least some are seeing particularly strong growth, including Alibaba (particularly in IaaS) and Oracle (in PaaS).”

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