While Linde is an early hydrogen leader, it has been skeptical of the sector's near-term growth prospects. The company believes it will take five to seven years for hydrogen technology to mature. As that happens, the industry will be able to approve more commercially viable projects.
6. Cummins
Cummins is a global power solutions company. It makes advanced diesel, natural gas, electric, and hybrid powertrains and powertrain-related parts. Among its solutions are fuel cell and electric power technologies and hydrogen production technologies. Accelera by Cummins is its business segment dedicated to zero-emissions technology, such as fuel cell engines.