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Marshall Named Vice President and General Manager of Brock Grain Systems

John Marshall
John Marshall
MILFORD, Indiana, U.S.A. — John Marshall has been named Vice President and General Manager of Brock Grain Systems, according to Doug Niemeyer, President and Chief Operating Officer for CTB, Inc. In his new role, Marshall will be responsible for leading and providing strategic direction for Brock Grain Systems through the oversight of sales, manufacturing and the company’s extensive worldwide network of independent dealers and distributors.

Marshall comes to Brock with experience in product development, strategic business development, sales and customer service support from the agriculture, control systems and commercial vehicle industries. He has most recently held senior level positions in the areas of sales, marketing, operations, engineering and customer support.

Marshall’s educational background includes a bachelor’s degree in mechanical engineering from the University of Illinois in Champaign, Illinois. He also holds a master’s degree in business administration from the University of Chicago, Chicago, Illinois.

He currently resides in the Granger, Indiana, area with his wife and two children.

Part of the CTB, Inc. family of companies, Brock Grain Systems ( is a global provider of grain storage, handling, conditioning and structural systems. Brock has a long tradition of developing industry-leading, innovative products and a reputation for delivering BROCK SOLID® reliability and durability. Founded in 1957, Brock offers systems under the Brock®, LeMar® and Riley® brands. The company operates facilities in Indiana, Iowa and Missouri and features an extensive dealer network.

CTB, Inc. ( is a leading global designer and maker of systems and solutions for storing, conveying and preserving grain; producing poultry, pigs and eggs; and processing poultry, fish, vegetables and other foods. The company also produces stables, buildings and products for various other applications. CTB’s strategy for growth includes best cost manufacturing, a product-driven focus, expanded global physical presence, strategic acquisitions and enhanced financial strength. The Berkshire Hathaway-owned company serves its customers through a worldwide distribution network.
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