Wave Financial - Award-winning financial software designed for entrepreneurs.
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
FreshBooks - The ideal accounting software for small business owners.
dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.
Xero - Xero is online accounting for your small business.
Xmonad - xmonad is a dynamically tiling X11 window manager that is written and configured in Haskell.