Base 11 Space Challenge: The Base 11 Space Challenge is a $1M+ prize for the first student-led team to design, build and launch a liquid-fueled rocket to space.

GoFly Prize: Design and build a safe, quiet, ultra-compact, near-VTOL personal flying device capable of flying 20 miles while carrying a single person.

Design a Deep-Sea Treasure: Design a deep-sea treasure to be placed on the seafloor (4000m below the sea surface) for the Shell Ocean Discovery XPRIZE teams to find.

XPRIZE Visioneering 2018 - Design Challenge: Compete for a Chance to Win up to 100K by Designing and Pitching the next XPRIZE in 1 of our 5 Grand Challenge Areas

Livable Smart Cities powered by Deutsche Telekom: Deutsche Telekom invites you to help make cities more livable for everyone.

Solar Tracking Challenge: Design a new way for solar panels to track the position of the sun

The Unlinkable Data Challenge: Advancing Methods in Differential Privacy: Propose a mechanism to enable the protection of personally identifiable information while maintaining a dataset's utility for analysis.

American-Made Solar Prize: The American-Made Solar Prize is a $3 million prize competition designed to accelerate and sustain American solar innovation.