Meet The Executives

Gary Treisman

President and CEO

Gary started Machinery Network in 1987 and has managed, appraised, and sold over $1 billion worth of machinery and related industrial assets. As the machine sales industry has grown, Gary along with our team created Machinery Network Auctions to work with clients to auction or liquidate their surplus assets. Gary received his education at University of the Witwatersrand (Jnb, South Africa). He was a successful stock broker from 1982 to 1987. Gary sat on the board for Locator Machinery and has held several leadership roles in multiple business organizations. He is an active member of MDNA and AMEA.

Dean Kampel

Executive Vice president - Machine Tool Division

As Executive Vice President at Machinery Network, Inc. (MN), Dean works closely with customers in OEM, tier one, and large job shops in aerospace & defense, mold die, medical and plastics manufacturers, as well as other metal working industries. As EVP/managing partner, his responsibilities also include overseeing all daily operations and management of Machinery Network's machine tool division.

Seth Geller

Vice President - Plastic Machinery Sales

Seth joined Machinery Network in 1995 and has been managing the plastics machinery division ever since. He is originally from Long Island, New York, home of the two greatest sports teams in the world: the Yankees and the Rangers. His goal has always been to make customers feel so comfortable with him on the phone that they have the confidence to make large used machinery purchases, knowing they're in good hands without ever having met him. When he is not busy making customers amazing deals on machines, he is at home, yelling at the TV during hockey and football games, or out playing hockey and other athletic activities.

Harvey Geller

Vice President - Fabricating Machinery Sales

Harvey has been in the used machinery business since 1974, and cofounded Best Machinery, Inc in New York. After selling his interest in the business to his partner, Harvey moved to California and joined Machinery Network in 1988 to specialize in fabricating machinery. When not working, he enjoys riding his horse and watching the LA Lakers.

Jeff Lee

Vice President - Appraisals & Boring, Grinding & Tool Room Machinery Sales

Jeff has been employed by Machinery Network since 1996. He has been an Association of Machinery and Equipment Appraisers (AMEA) Accredited Appraiser since 2005 and Treasurer - (West Coast Regional Chapter) of the Machinery Dealers National Association from 1999-2002 and January 2005-present. Jeff has bought and sold several hundred machines including, but not limited too, CNC and conventional machining centers, mills and lathes, boring mills, grinders, EDM’s, water-jets, woodworking machinery and inspection machinery, including CMM’s & Comparators. He works closely with Machinery Network's auction team and has been involved in several multi-machine shop liquidations and auctions. Jeff is originally from Colorado where he studied at his "Almost Mater", the University of Colorado, Boulder, CO.

Eric Raffin

Executive VP, Asset Management

Eric joined Machinery Network Auctions after 7 years as founding partner and managing member of a successful post-conviction, sentencing, and criminal trial consulting firm in Los Angeles. Prior to that, he spent over 20 years in executive level sales and marketing. Eric graduated with honors from UCLA and earned his law degree from Loyola Law School. With his background and experience, Eric brings a fresh and dynamic approach to providing MNA’s new and existing clients the service and professional attention they have come to expect. He is originally from Oregon, but has lived in Los Angeles since 1984 and is proud to say that he plans to call this wonderful city his home forever.

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