Palmer Johnson Enterprises is the parent company of Palmer Johnson Power Systems, Hamilton Power Solutions, and Alterra Power Systems. Under the PJE umbrella are the support teams of: Human Resources, Accounting, Marketing, Information Technology, and Supply Chain.

Palmer Johnson Enterprises is the parent company of Palmer Johnson Power Systems, Hamilton Power Solutions, and Alterra Power Systems. Under the PJE umbrella are the support teams of: Human Resources, Accounting, Marketing, Information Technology, and Supply Chain.

Palmer Johnson Power Systems, founded in 1977, specializes in servicing and supplying components for heavy-duty, off-highway powertrain solutions, including transmissions and axles. The company currently operates seven sales and service branches across North America with more than 160 dedicated employees. Palmer Johnson is the authorized distributor and service center for leading off-highway manufacturers including Twin Disc, ZF Off-Highway, Dana Spicer, Carraro, Funk, Wichita, Eaton Airflex and more. Palmer Johnson also operates volume OEM transmission and axle re-manufacturing programs out of the company's Madison, Wisconsin, headquarters for equipment manufacturers including John Deere, Caterpillar, AGCO and CNH.

Hamilton Power Solutions was founded in 1954 as Hamilton Engine Sales. With over 60 years of experience applying gaseous and diesel engines to any application requiring a turning shaft. In 2022 Hamilton Engine merged operations with Trident Engineered Solutions to become Hamilton Power Solutions. The name change was made to reflect better the total scope of Hamilton’s prime-mover agnostic, complete drivetrain solutions strategy. With the infusion of the engineering team at Trident and distributor-level access to various drivetrain components, Hamilton Power Solutions can provide comprehensive sales, service & engineering support at a level unmatched by our peers in the industry. Markets include agricultural, construction machinery, welders, compressors, material handling, pump/irrigation, forestry, and mining. Hamilton Engine is a trusted distributor of Deutz, Isuzu, and Scania diesel engines.

Specializing in selling and servicing diesel and natural gas power generation systems for commercial and mission-critical applications. We serve healthcare, manufacturing, data centers, financial, hospitality, utility, construction, water pumping/treatment, infrastructure, telecommunications, indoor agriculture, traditional agriculture, and other power generation markets. Alterra Power Systems is part of the Palmer Johnson family of companies, headquartered in Madison, WI, and operating in 14 states throughout the Midwest, Texas, and the Northwest United States.

Continental Engines has built a strong reputation in the engine and engine parts industry. They offer engineered customer build and value-added solutions for engines and generators along with full-service repair and maintenance for all of our products, both on-site and on location. With backing from the strongest manufacturers in the industry, CE strives to make having Continental Engines as a partner a key to your success. In addition to representing product lines such as Hatz, JCB, HD Hyundai, Kohler, Wisconsin Motors, and Kirkloskar, Continental Engines also offers services for both the engine and generator markets.