Leadership Team

Stuart Sleper
President & CEO

Stuart’s manufacturing career spans more than 25 years. He’s worked in leadership roles for companies such as General Motors, Honeywell, Goodyear Tire, and Parker Hannifin. As a senior leader, Stuart brings expertise in the areas of M&A, international business and finance, sales & marketing, operations, global sourcing & supply chain management. Stuart enjoys working along-side XL’s team members to improve our company and culture—and hitting the road with our sales team, visiting our customers and dealers, to make sure XL maintains its market leading position in product innovation. Stuart earned his BA from Michigan State University and his MBA from Davenport University.
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Eric Branson
Director of Human Resources

Eric came to XL in 2011 from a diverse background. Eric has held various leadership HR roles at Omega Cabinets, First Citizens National Bank, Heartland Financial and ran his own consulting practice. He has notably helped a company grow from 220 to 680 employees in five years, established performance management plans, benefit programs, training programs and information systems. Eric’s contributes to XL’s craftsmanship manufacturing environment through recruitment, staffing, employee relations, compensation, benefits, and associate development. Eric has been recognized as a Senior Professional in Human Resources by the Human Resources Certification Institute and a Senior Certified Professional by the Society for Human Resource Management. He has a BA in Business Administration and Education from Wartburg College. Eric has supported community efforts in many ways including involvement in: the United Way of North Central Iowa, the Boy Scouts of America, YM/YWCA of Mason City, and Employer Support of the National Guard and Reserve.
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Keith W. Dennie
Director of Supply Chain

Keith has been with XL Specialized Trailers since 2011. Prior to beginning his time with the company, he earned a Bachelor’s degree in Political Science from the University of Iowa. Keith’s positions during his tenure at XL have included Customer Service Representative, Customer Account Specialist, and Supply Chain/Purchasing Manager. Keith is enthralled by the details within the supply chain sector and enjoys working with business partners locally, and globally. He is passionate about achieving professional goals for himself, and the company as a whole. Keith values the relationships he holds with his team members, and the positive culture they support at XL Specialized Trailers.
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Drew Dunkel
Director of Information Technology

Drew came to XL in 2020 with a wide array of experience over many industries.  Most recently, Drew was the Director of Information Technology from Innovative Ag Services.  In that appointment he directed the technology strategy for 34 business locations, ensuring business solutions aligned with the companies technology goals.  This proven track record contributes to XL’s success by ensuring we grow strategically via technology.  Drew holds a Master’s in Business Administration from Western Governors University, a Bachelors in Information Technology Management, and two associates degrees over the programming and networking professions from Northeast Iowa Community College.
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Tom Hiatt
Director of Sales

Tom brings over 30 years of professional sales and management expertise to our team. Tom comes from a diverse background of heavy manufacturing, component sales, strategic distribution and representative networking, construction management, acquisition development and an outstanding reputation in relationship building. Tom works closely with our global sales and dealership network to provide innovative hauling solutions for the heavy-haul market.
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Tim McGreal
Director of Engineering

Tim McGreal has his BA in Mechanical Engineering and Mathematics from Loras College. He has his Fundamentals of Engineering certification and has been designing trailers since 2014.  Tim has worked on many of XL’s recent new product designs, including the Blademate and California style trailers, and he has earned one patent while working at XL. He enjoys designing new products to meet customer needs and supporting the projects from the research and design phase, through the building and testing phase. As Director of Innovation Engineering, Tim remains focused on XL’s new product development and product enhancement.
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Brian Nollen
Director of Operations

Brian started his career in the construction industry; owning and operating a successful concrete business for ten years. In 2008, when the economy slowed, he sold the company and started working at XL Specialized Trailers in the fabrication department. He quickly moved up the ranks, becoming a supervisor and then a production manager, overseeing Fabrication and Welding. Today, Brian serves as our Director of Operations. Brian aligns the production team with the overall company goals, through building an environment of teamwork. Brian has successfully led many cost savings initiatives and production efficiency projects. Brian holds a technical degree and certifications in Lean Manufacturing and Jobsite Management.
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Eric Olson
Director of Accounting & Finance

Eric has been with XL Specialized Trailers since 2011.  Eric brings over 20 years of business management and leadership experience to the XL Team, ranging from an independent franchisee to a Fortune 500 company.  Eric earned his Bachelor’s degree from American Intercontinental University in the areas of Business Management and Accounting. Eric is passionate about continuous improvement in all facets of the business and refuses to accept the status quo as the best we can do.  Eric enjoys working closely with the XL Team as well as our outstanding network of distributors to provide financial leadership, aligning business and financial growth strategies and influencing the future direction of the company.
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Erin Reiff
Director of Marketing

Erin has experience in many facets of marketing, from product launches, campaign development, design, advertising, public relations, website development, and event planning, to market analysis and forecasting. She joined XL Specialized Trailers in 2011, and headed the company’s rebranding and website relaunch in 2012. Erin earned her BA in Communication Arts: Public Relations and Communication Design from Wartburg College. Erin is passionate about continuing to build the XL brand in the market and implementing strategies to make our distributors successful.
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Cory Stafford
Director of Business Systems
Quality, Continuous Improvement & EH&S

Cory Stafford has been a part of XL Specialized Trailers since 2013, in various leadership roles.  Cory brings with him many years of leadership experience; over 12 years in purchasing and 25 years in Environmental Health and Safety.  His most recent position with XL was Supply Chain, IT and EHS Manager.  Cory possesses a Bachelor’s degree in Business Administration: Marketing, from Wartburg College. Cory takes pride in XL’s production of the highest quality and most durable trailers in the industry, and recognizes our partnership with dealers is a key component to making this possible.
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