Around 78% of corporates said they have had internal discussions about using cloud computing, according to a survey from business advisory firm TPI.
Concerns about security, compliance, continuity and data protection are still inhibitors to take-up.
But Kevin Smile, partner at TPI, said the rate of businesses migrating into the cloud remains slow.
"Only three out of five are moving forward - and most of those are working on pilot projects or low-risk services to test the waters and identify the issues," he said.
Of the 140 corporate IT decision-makers surveyed, five main concerns arose about migrating business services into the cloud:
- Inadequate data security (79%)
- Fears of non-compliance with regulatory requirements (50%)
- Concerns about disaster recovery procedures (50%)
- Integration of cloud solutions with legacy systems (49%)
- Worries that others may gain access to company data (49%)
Suppliers also have to change their business models to suit cloud computing.
Stuart Curley, chief technology architect at Royal Mail, said the biggest barrier for big business is the inability of cloud computing providers to deal with the corporate supply contracts.