Key Players Covered Some of the major companies that are present in the global oil accumulator market are Freudenberg Sealing Technologies, Canton Racing Products, Moroso Performance Products, Val-Matic Valve Mfg. Corp, Acadian Contractors Inc., Mueller Co., Hydac Technology GmbH, Roth Hydraulics GmbH, Nakamura Koki Co., Ltd, Parker Hannifin Corp., Bosch Rexroth, and Nippon Accumulator Co., Ltd among others.