| Urban Design | Buildings, landscapes, and programs that make cities—and living in them—cleaner, more efficient, more beautiful, and more equitable for their citizens.
| | Transportation | Projects that get you places—whether on two wheels or four—in new, interesting, and fuel-efficient ways.
| | Consumer Products | Items that help you live a more purposeful life, or fundamentally alter outdated business models or supply chains of our current consumer goods.
| | Food | Projects changing what we eat, how we eat, and how we get our food.
| | Energy | Solar, wind, and any other innovative ideas to create clean power (either for personal use or at a large scale) or new systems for better electricity distribution.
| | Health | Products and projects that improve either personal or global well-being and longevity, from apps to devices, to new medical equipment.
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| | | Developing World Technology | Products designed specifically for the developing world, both ones intended for the bottom of the pyramid and those intended to help create leapfrog innovation.
| | Apps | Projects that live primarily in a mobile format, in any discipline.
| | Photography & Visualization | Any visual or creative project that helps explain and publicize global problems and solutions.
| | Advertising | Campaigns designed to draw attention to social issues and inspire people to act or to promote world-changing products or services.
| | Students | Projects in any category, created by undergraduate or graduate students.
| | General Excellence | The most innovative ideas with no category restrictions. Anything that has the potential to effect true systems change or solve wicked problems.
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