The People Behind Coltura





Matthew Metz | Executive Director

Matthew Metz is the founder and executive director of Coltura.  Metz founded Coltura after purchasing his first electric car and wondering why his friends weren't also making the switch. Prior to founding Coltura, Metz founded the Metz Law Group, Jaguar Forest Coffee Company, the Central Area Development Association, and the Central Area Arts Council.  He also worked in international development for an NGO in Mexico City.  Metz is a graduate of the University of Chicago and UCLA Law School, and is the author of the citizenmetz blog, a blog focusing on the intersection of carbon and culture.


Janelle London, California State Director

Janelle London is the California state director for Coltura. She chairs the Environmental Quality Commission for the city of Menlo Park, advises Peninsula Clean EnergyGreen Ninja and the Peninsula Advanced Energy Community, and teaches a course called Energy, the Environment and Chocolate. She was a director at the Fortune 500 dialysis company DaVita for 14 years, and prior to that she practiced law with O’Melveny & Myers. Janelle is a graduate of Stanford University and the University of California School of Law.


Tim Petras

Corrie Yackulic

Corrie J. Yackulic is a Seattle trial lawyer. Corrie started her legal career working for the Sierra Club Legal Defense Fund (now Earthjustice), and practiced for many years at Schroeter, Goldmark, and Bender, before starting her own firm in 2009. Corrie has brought numerous toxic tort claims – including those based on airborne contaminants from field burning, feedlot emissions, untreated landfill emissions, and tainted drinking water. Corrie served until recently for many years on the board of Western Environment Law Center, a watchdog that uses the law to enforce state and federal natural resource laws and to ensure government accountability. Corrieis a graduate of Williams College and Harvard Law School.


Easen Ho

Easen Ho is an engineer, investor, and philanthropist based in San Jose, California.  A passionate enthusiast for EVs and green technology, Easen has started up and invested in many sustainable technology companies in the U.S. and Asia.  Easen holds a P.hD is laser and optical engineering from the Massachusetts Institute of Technology, and a B.S. in Engineering from the University of Washington.


Joe Quintana

Joe Quintana is a Seattle-based consultant who helps business and government leaders shape policy and perception. He previously served as a senior corporate executive with Puget Sound Energy, as special assistant to King County Executive Tim Hill, and as an award-winning reporter at the Seattle Times and other major U.S. newspapers. 


Sung Hwang

Sung Jin (SJ) Hwang is a lawyer and investor and a former investment banker based in Hong Kong with deep experience in international investment transactions and corporate strategy.   He also guides clients on best practices in corporate governance.  He is a graduate of UCLA Law School and Johns Hopkins University. 


Tim Petras

Tim Petras has held the position of Director of Marketing and Operations for Microsoft in Russia since 2014. He started his career at Microsoft in 2000 and has worked in the consumer and commercial businesses and on many different products, from Azure to Xbox. Half of his Microsoft work experience was at the company’s Seattle headquarters, the other half on international assignments in the U.K., Netherlands and now Russia. Prior to Microsoft, Timothy was Vice President of Marketing and Product Management at the Silicon Valley startup he co-founded, eVoice Inc..  As co-founder he raised more than $40M in capital and grew the company to more than 120 employees and a successful product launch. The company was acquired by AOL. Prior to AOL he was Group Product Manager at McAfee Inc, where he managed its worldwide portfolio of consumer software products. Prior to McAfee, Timothy was Brand Manager at Procter & Gamble. Timothy has an MBA in Finance and Marketing and a BA in Economics from the University of Chicago. He is married and has three children. He enjoys sailing, snowboarding, snorkeling, traveling internationally and spending time with his family.