Alternatives to VMware vSphere

It suits organizations from SMBs and large enterprises to service providers and cloud operators that need application delivery, load balancing, or multi-cloud traffic management.

Loadbalancer.org Enterprise

It suits teams managing application delivery across multiple environments that need traffic controls, regional failover and a WAF.

HAProxy suits operators running high-traffic TCP or HTTP services who want a self-hosted load balancer and reverse proxy.

APV suits organizations that need application traffic management and delivery across data-center or cloud deployments.

It suits Linux administrators building self-hosted clusters for scalable web, cache, mail, FTP, media, or VoIP services.

MetalLB is intended for operators of Kubernetes clusters that do not run on cloud providers and need service IP allocation and announcement.

Progress describes the LoadMaster product family as serving businesses of all sizes and managed service providers.

Citrix ADC (now NetScaler)

NetScaler suits enterprises scaling customer-facing applications and organizations using Citrix virtual apps and desktops.

kube-vip

It suits teams operating Linux Kubernetes clusters themselves, especially on bare metal, on-premises, virtualized, or edge infrastructure.

It suits teams exposing Kubernetes services from self-hosted Linux environments, including bare-metal, edge, and virtualization deployments.

PureLB

PureLB suits operators running Kubernetes on bare-metal Linux who need external reachability for LoadBalancer services.