Invoice Ninja - Invoice Ninja is a free, open-source solution for invoicing and billing customers.
ManageEngine RecoveryManager Plus - RecoveryManager Plus is one such enterprise backup solution which has the ability to easily backup and restores both the domain controllers and virtual machines.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
SECDO - SECDO offers automated endpoint security and incident response solutions