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Application Delivery Controllers \ Load Balancers Vendor List

The job of a load balancer is to distribute traffic across multiple servers. For example you can place a load balancer in front of multiple web servers or email servers. When traffic such as a web request or an email is destined for these servers, the load balancer sends the first email or web request to the first server then the next email or web request will be redirected to the 2nd server by the load balancer and so on. This will enable high availability, better performance and scalability.

Load balancers can also use other clever algorithms in order to distribute traffic. An example is If a network consists of two email servers where one is old and slow and the other is new and powerful, a load balancer can be configured to send more emails to the powerful server.

Load balancers can detect when a server has gone down and come back online again which is a feature known as server health monitoring. Some load balancers come with built in IPS and other application layer security features as well as SSL off-loading, compression and caching functionality. The combination of a load balancer and these other features built in is now termed as Application Delivery Controllers.





Activ Networks have a solution known as BoostEdge that accelerates and protects web applications.


Array Networks provide load balancing and SSL acceleration in their range of ADC products.


A10 Networks is a network security vendor and have a range of ADC's in their AX series portfolio.


Barracuda Network offer an ADC solutions with built in load balancing, IPS and other key features. Barracuda Networks also provide ADC capabilities built into their WAF solution, link balancing for balancing internet connections and a range of security solutions.


Brocade who deliver networking solutions to ISP carriers and very large networks provide layer 4-7 application delivery controllers.


CAI Networks have a portfolio of ADC's.


Celestix is a security vendor and provide ADC's.


Citrix provide load balancing and application acceleration in their NetScaler solution.


CoyotePoint Systems have a portfolio of ADC's targeted towards the mid market.


Crescendo Networks specialise in application delivery and acceleration.


Fortinet is a market leader in UTM appliances and deliver Application Delivery Controllers in appliance platforms.


F5 offer highly reputable ADC's. F5 also has a range of other solutions such as SSL VPN, Link controller and WAN optimisation products. F5's WAN optimisation and ADC's are tightly integrated.


jetNEXUS specialise in ADC's and application acceleration.


Kemp Technologies specialise in load balancers, ADC's and SSL acceleration.


Microsoft provide load balancing in their Network Load Balancer (NLB) built into Microsoft server operating systems. It is not as granular as a true dedicated load balancer but may still suffice depending on your requirements.


Radware have an application delivery controller known as AppDirector.


Sangfor is a company based in China who specialise in web security and optimisation. Sangfor deliver a range of application delivery controllers.


Strangeloop is a vendor that provides a solution in appliance and hosted platform known as SiteOptimizer.


Zeus Traffic Manager ADC comes in virtual, cloud and software platforms.