Linux Kernel
Linux Kernel is Linux OS itself. VA Linux takes a part in developing the Linux Kernel, and has developed several new functions.

NetBSD Project
The NetBSD Project is an international collaborative effort of a large group of people, to produce a freely available and redistributable UNIX-like operating system, NetBSD.

Xen
Xen is a virtual machine monitor for x86 that supports execution of multiple guest operating systems with unprecedented levels of performance and resource isolation.

UltraMonkey
Ultra Monkey is a project to create load balanced and highly available services on a local area network using Open Source components on the Linux Operating System.

SuperSparrow
Super Sparrow enables users to load balance traffic between geographically separated points of presence by finding the site network-wise closest to clients.

Linux Virtual Server
The Linux Virtual Server is a highly scalable and highly available server built on a cluster of real servers, with the load balancer running on the Linux operating system.