AWS Elastic Load Balancing - Amazon ELB automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Ericom Connect - Ericom Connect
KEMP Load Balancer - L4/7 Load Balancer w SSL offload
Load Balancer Add-On - Load Balancer Add-On is a platform that offers users to distribute traffic between multiple servers.
Haproxy - Reliable, High Performance TCP/HTTP Load Balancer
Azure Traffic Manager - Microsoft Azure Traffic Manager allows you to control the distribution of user traffic for service endpoints in different datacenters.