The global hydrogen combustion engine market is dominated by players like Cummins Inc., Hyundai Motor Group, Deutz AG, Toyota Motor Corporation, Weichai Power Co., Ltd., JCB, Scania AB, Bosch GmbH, MAN Energy Solutions, Volvo Group, Liebherr AG, Kawasaki Heavy Industries, Ltd., HY2GEN, AVL, and MAHLE GmbH, among others.