Arnold W. Ackerman

Founded in 1991, Duff Ackerman & Goodrich LLC (DAG) is a private equity investment firm located in San Francisco.

Motorcycle Industry Council, Inc. preserves, protects and promotes motorcycling. It supports motorcyclists by representing manufacturers, distributors, dealers and retailers of motorcycles, scooters, motorcycle parts, accessories and related goods and services and members of allied trades such as insurance and finance. The company was founded in 1914 and is headquartered in Irvine, CA.

Renthal Ltd. manufactures and supplies motorcycle and bicycle spare parts. Its products include handlebars, grips, bar mounts, levers, hand guards, chainwheels, chain, brake pads, and other accessories. The company was founded by Andrew Renshaw and Henry Rosenthal in 1969 and is headquartered in Stockport, the United Kingdom.

DAG Private Equity (DAG) is a private equity subsidiary of Duff Ackerman & Goodrich LLC founded in 1991 by Tom Goodrich, John M. Duff and Arnold Ackerman. The firm is headquartered in Palo Alto.

Motorsport Aftermarket Group, Inc. manufactures and sells motorcycle parts and accessories. It offer its products in the areas of business development, finance, sourcing, information technology, sales, and marketing. The company was founded by Robert A. Ackerman in 2000 and is headquartered in North Irvine, CA.