Rockstor - Rockstor is a free and open source NAS (Network Attached Storage) operating system.
Zenefits - All-In-One Online HR: Payroll | Benefits | Compliance
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Insperity - Insperity takes care of your HR needs by managing employee benefits, payroll proccessing, and much more.