amoCRM is the world's first messaging-powered CRM. Multi-channel communication lets you converse through messengers, emails, and calls from a single app. Now every interaction with your customers can be a personalized one-on-one dialogue. Plus managers love its powerful analytics, reporting, and automation tools. It's the perfect messenger-based sales solution for entrepreneurs and SMBs.
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
HubSpot CRM - Free CRM software for small businesses.
ClearOS - A very good alternative for Windows Server, for free
Keap - Grow Sales. Save Time. Get Organized.
OpenMediaVault - OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.