Revenues for security appliance increased 6.1% year over year to $2.1bn (£1.3bn) during the second quarter of 2013, according to a report from International Data Corporation (IDC).
Security appliance shipments also decreased by 1.5% to 483,354 units during the quarter due to slower multi-function unit growth.
IDC Security Products research manager John Grady said that the results in the second quarter show that security spending is still a priority for organisations.
"Despite the increasing prevalence of virtual and SaaS-based solutions, appliances remain the predominant delivery method for network security products," Grady added.
"Even with performance and functional requirements rising dramatically for many organisations, appliance-based products have continued to meet market demands."
In terms of revenue growth, Canada led the quarter with 17.6% increase, followed by Asia/Pacific with 9.9%, and the US, reporting 8.7% year-over-year growth.
In the second quarter of 2013, Cisco led the security appliance vendor revenue with 16.2% market share, followed by Check Point with 12.5% , while Fortinet held 6.2% share.
The Unified Threat Management (UTM) segment reported the highest year-over-year revenue increase of 32.8%, taking 38.2% of security appliance revenue share during the period, while the firewall market declined 22.1% year over year.
The Intrusion detection and prevention (IDP) segment grew at 10.7% over the same period last year, while the content security segment revenue increased 6.8%, accounting for 19.6% of the market.
IDC Worldwide Trackers Group senior research analyst Ebenezer Obeng-Nyarkoh said:"Consequently, organisations are increasingly emphasising reliable solutions with the integration of intelligence that can quickly solve the problem caused by data breaches."
