Jonas Ketterle

About Jonas Ketterle

JONAS KETTERLE is the founder of the bean to bar chocolate company, Firefly Chocolate. With a mission of "inspiring awe and wonder," Firefly Chocolate specializes in 85% and darker chocolates.

Now a US citizen, Jonas was born in Germany and immigrated with his family in 1990.

Jonas received his MS and BS in mechanical engineering at Stanford University. Believing the discussion about energy at Stanford University was too narrow, he organized the interdisciplinary Energy Crossroads conference while at Stanford. He was a co-recipient of an EPA grant to conduct research on sustainable housing, and received recognition as a Morris K. Udall scholar. In May 2013 Jonas graduated from the Regenerative Design and Nature Awareness Program at the Regenerative Design Institute in Bolinas, CA, where he studied tracking, bird language, cultural repair, and wild food processing for 9 months.

Previously Jonas worked as Imagineer for Greenlight Planet, which sells affordable and reliable solar lanterns in emerging economies, primarily India. Before that he was lead engineer for electrical engineering, software, and batteries research at Fenix International. Earlier internships included the design of human powered generators, low cost field microscopes with D-Rev, efficient HVAC systems at Rumsey Engineers, solar panel manufacturing processes with Lockheed Martin Space Systems, and wind turbine inspection robotics at the Fraunhofer Institute.