PHD Virtual Technologies
It is a program designed VMware vSphere that can back up and restore data.
Mware Boomerang allows you to use multiple vSphere servers simultaneously.
VMware SiteSurvey is a plugin for the vSphere Client which analyzes ESX hosts.
Integration of the Windows Remote Desktop tool with the VMware vSphere Client.
LC Technology International, Inc.
Recovering lost and deleted files.
Access your email accounts and chat with your contacts from desktop.
Simplify your disaster recovery plans for vSphere with one-pass.
It is an app that helps you manage your VMware vSphere environments.
Auditing of who changed what, when and where in VMware vSphere and ESX.
Veeam Software Corporation
Veeam Backup & Replication provides fast vSphere backup and recovery.
Acronis International GmbH
Acronis vmProtect allows you to protect your VMware vSphere environment.
WSX is a highly experimental service that allows users to access their vSphere.
Hewlett Packard Enterprise
Virtual machine backup, and verification of VMware vSphere & Microsoft Hyper-V.
PowerShell cmdlets for automating vSphere, VMware Site Recovery Manager, etc.