Hanko Kiessner is a fifth-generation entrepreneur, innovator and founder of Packsize, where he helped reinvent packaging with Right Size Packaging On DemandĀ®. He launched Leaders for Clean Air to promote a zero-emission society, drive EV adoption, and is now part of Grid Elevated, accelerating smart grid innovation. A passionate sustainability advocate, Hanko brings energy and purpose to every venture—championing mass-electrification, digitalized energy goals, and circular economy thinking to build a cleaner, smarter future.