HYLN

Hyliion Holdings Corp.

A Texas-based energy technology company that builds the KARNO generator, a fuel-agnostic power module that turns heat directly into electricity using a modernized Stirling engine rather than traditional combustion. It can run on everything from natural gas and diesel to renewable hydrogen. Founder Thomas Healy started Hyliion in 2015 while studying at Carnegie Mellon, originally building hybrid systems for big-rig trucks before pivoting to power generation. The name blends "hybrid," "lithium," and "ion" — and Healy, a self-described gearhead and motorsports fan, dropped out of grad school to chase the idea.