BIGIRON.COM - Key Persons


Ann Gray


Arlyn Swartzentruber


Ashley Kaiser


Bill Wall


Brad Otte


Craig Guffin


Darrell Crapp


Dennis Fowlkes


Emily Swatzell


Eugene Christensen


Glen Ewing


Jerry Hoegh


John Buhl


John Erck


Justin Hubbs


Ken Maguire


Kerin Zuger

Job Titles:
  • Chief Revenue Officer

Kim McCormick - CFO

Job Titles:
  • Chief Financial Officer

Lee Juenemann


Linda Meyer


Mark Allen - CTO

Job Titles:
  • Chief Technology Officer

Mark Stock

Job Titles:
  • Co - Founders of BigIron Auctions
Mark Stock and Ron Stock are the co-founders for BigIron Auctions & Realty. Serial entrepreneurs, the brothers are known throughout agricultural and business circles for being innovators in all their business ventures and investments. Diversified agriculture, business services and rural community development have been the hallmarks of their respective career pursuits. Mark, known for visionary ideas while remaining true to his pragmatic values as a farmer, currently serves as CEO and Chairman of the Advisory Board. He is an active participant in all aspects of the organization, including business development, brand building, and operations. Additionally, Mark is a recognized radio voice throughout the Midwest, he is licensed for auctioneering and real estate in several states and is a past Nebraska Reserve Champion Auctioneer. He has served on several company directory boards, including Proxibid during its formative era. Ron,the consummate big picture entrepreneur, continues to lead the real estate company and is well known in the ag-land based sales and service markets. As Working Owner and Advisory Board member, Ron's high energy approach has been foundational to the companies launch and sustainability. Many associates have enjoyed the opportunity to reach their potential with his unique ability to inspire and motivate them to achieve. He is a graduate of Mason City College of Auctioneering, completed real estate studies and received licensing at Northeast Community College. Ron is a licensed auctioneer and real estate broker in multiple states. He is also a past Nebraska Reserve Champion Auctioneer. Ron and his wife Kristin enjoy boating, traveling and entertaining family and friends.

Mike Howk


Molly Oliver


Rex Mahoney

Job Titles:
  • Real Estate Agent
Rex Mahoney is an experienced licensed real estate agent based in Albion, Nebraska. For the last 13 years his focus has been solely on farmland real estate with BigIron Realty. Rex's knowledge of agriculture and genuine desire to help sellers has led him to become a multi-year Million Dollar Producer and multi-year recipient of BigIron's prestigious Top Producer Award. Rex's career in sales began at a young age when he worked at the parts counter in his father's St. Edward, Nebraska-based implement dealership. His work with farmers and vendor-partners eventually led him to become part owner. Rex eventually shifted into a sales and management role with Eakes Office Plus, located in Columbus, Nebraska. He was given the opportunity to return to his agriculture roots nearly 14 years ago when Rex joined BigIron Realty. Not only can he utilize the knowledge and skills he's gained throughout the duration of his career; he also has access to and additional support from an entire team of seasoned real estate professionals. According to Ron Stock, Broker Owner and CEO of BigIron Auctions and BigIron Realty, "Rex Mahoney is a one-of-a-kind person who possesses the ‘trifecta' in sales leadership. He's honest, hardworking and truly enjoys building relationships with the sellers he works with."

Rocky Marquess


Ron Stock

Job Titles:
  • Co - Founders for BigIron Auctions & Realty
  • Owner and CEO of BigIron Auctions

Sarah Townsend


Steve Buchanan


Steve Schmalz


Sue Guffin


Tom Wingert


Tony Crapp