Nifty - Manage projects, work, and communications in one place.
BambooHR - Personalized HR software for SMBs
Flow - Stop managing projects from your inbox.
CharlieHR - Charlie automates many of the administrative headaches you'll experience when scaling a company, so you can spend less time doing admin and more time doing the things you love.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Namely - Namely is the end-to-end HR, payroll, and benefits platform for growing companies.