Many organisations are looking to improve their IT infrastructure over the next few months, according to research from IDC, with most new investment being made in public and private cloud services.

IDC’s Worldwide Quarterly Cloud IT Infrastructure Tracker forecasts total cloud IT infrastructure spending (server, storage, and Ethernet switch) will grow by 26.4% in 2015 and will reach $33.4 billion, accounting for a third of all IT infrastructure spending this year.

Private cloud IT infrastructure spending will grow by 16.8% year-on-year, to $11.7 billion, while public cloud IT infrastructure spending will grow by 32.2% to $21.7 billion. Spending on non-cloud IT infrastructure will remain flat at $67 billion. For the five-year forecast period, IDC expects that cloud IT infrastructure spending will grow at a compound annual growth rate (CAGR) of 15.6% and reach $54.6 billion by 2019, by which time it will represent 46.5% of the total spent on IT infrastructure globally.