We've spoken with a number of entrepeneurs, data scientists, civic leaders to put together this event.

Here's a look at our list of judges and key advisors:

Bill Weihl
Manager of Energy Efficiency and Sustainability, Facebook

Bill Weihl joined Facebook in early 2012 to lead the company's sustainability and energy efficiency efforts. He was previously the Green Energy Czar at Google, where he led engineering efforts in renewable energy and energy efficiency.   Read more…

Luis Arbulu
Founding Partner, Hattery

Hack City Judge Luis Arbulu is a founding partner at Hattery.   Read more…

Scott Holland
VP Product Management and Marketing, Johnson Controls

Hack City Judge Scott Holland has been the Vice President of Product Management and Marketing for the Global Business Technology and Services org   Read more…

Ian Kalin
Director of Open Data, Socrata

Ian Kalin is passionate about empowering people with data. Called “one of the most badass innovators on the planet” by U.S. Chief Technology Officer Todd Park, Kalin is currently the Director of Open Data for Socrata. In this role, Ian helps governments liberate their data as a fuel for innovation.   Read more…

Joel Makower
Chairman & Executive Editor, GreenBiz Group

Joel Makower is a well-respected voice on business, the environment, and the bottom line. As a writer and strategist on corporate sustainability practices and clean technology, he has helped a wide range of companies align environmental goals with business strategy.   Read more…

Dillon McDonald
Founding Partner, Greenstart

Hack City Judge Dillon McDonald is a serial entrepreneur, startup advisor and founding partner at Greenstart - the startup accelerator and desig   Read more…

Bob O'Connor
Partner, Wilson Sonsini Goodrich & Rosati

Hack City Judge Robert O'Connor is a corporate partner with Wilson Sonsini Goodrich & Rosati and a leader in the firm's energy and clean technolo   Read more…

Sunil Paul
Founding Partner, Spring Ventures

Sunil Paul is Founding Partner of Spring Ventures, a multi-stage venture fund that invests in novel IT and cleantech compa   Read more…

Paul Pebbles
Global Manger, Electric Vehicle, Smart Grid and Emerging Services, General Motors

Paul Pebbles is Global Manager, Electric Vehicle, Smart Grid and Emerging Services for General Motors. In this capacity, Paul has created customer-facing services for the GM Volt, leveraging OnStar’s unique connectivity and control.   Read more…

Leo Shklovskii
CTO and Co-Founder, EnergySavvy

Hack City Judge Leo is responsible for the overall technology and user experience strategy and process for EnergySavvy.   Read more…

David Merkoski
Chief Design Officer, Greenstart

David is one of the world’s leading UX and Brand designers. As a partner and Chief Design Officer at Greenstart, David is a central architect of the Startup Design™ methodology and the leader of the UX and Brand practices.   Read more…

Jennifer Pahlka
Founder & Executive Director, Code for America

Pahlka is the founder, executive director and board chair of Code for America. Previously, she ran the Web 2.0 and Gov 2.0 events for TechWeb, in conjunction with O'Reilly Media, and co-chaired the successful Web 2.0 Expo.   Read more…

Shannon Spanhake
Deputy Innovation Officer, City of San Francisco

Shannon Spanhake is the Deputy Innovation Officer for the Office of Mayor Edwin M. Lee and the City and County of San Francisco. Her focus is on using innovation to enable job creation, citizen engagement, and urban revitalization.   Read more…

DJ Patil
Chief Data Scientist, Greylock Ventures

DJ Patil is the Chief Data Scientist at Greylock Partners. Previously he was the Chief Product Officer of Color Labs. He previously worked for LinkedIn as their Chief Scientist and Chief Security Officer and eBay as their Director of Strategy, Analytics, and Product.   Read more…

Jay Primus
SFpark Manager , San Francisco Municipal Transportation Agency

Jay Primus works for the SFMTA as the Program Manager of SFpark, San Francisco's new approach to parking management.   Read more…

Jay Nath
Chief Innovation Officer, City of San Francisco

In his current role as the Mayor's Chief Innovation Officer, Jay Nath is working with the tech community and the public to help reinvent government in the digital age.   Read more…

*Note: Sunil Paul has fallen ill and won't be able to join us.

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