Roller Cycle - Motorized everything on wheels propeller
GetYourGuide - Get tickets to the most popular attractions while travelling
Cowboy - Small, fast, modular HTTP server written in Erlang.
Klook - Discover & book amazing experiences at exclusive prices
Sleep Cycle - Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.
Airbnb - Book unique places to stay and things to do.