Challonge - The Ultimate Source for Tournament Brackets
Sporty - Beautiful app for creating/joining sports activities nearby
BracketPrint - Create Round Robin, Single and Double Elimination Brackets for Tournaments print and use it for free. - Generate your bracket now.
ATLETO - Connecting everyday athletes
smash.gg - An esports platform empowering bottoms-up growth of competitive communities with value-add services...
sPortable - instant messaging, video chat and phone calls