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About Derby


Derby Leadership experience….

Diana Herold, CPA President and CEO

Picture of Diana Herold, CPA President and CEO

Diana has been with Derby for over twenty years. She has over twenty-five years professional experience in finance and operations. Prior to accepting the role of President and CEO of Derby, she held the positions of VP of Finance and Chief Operating Officer. She has a Bachelor’s Degree in Business Administration – Accounting from The University of Louisville and is a member of the Kentucky Society of CPA’s. She has been an active member of South Oldham Rotary for six years, Board Member for three and enjoyed her time as a former Board Member of YMCA Safe Place Services in Louisville, KY. Diana enjoys quality time with her family, spin classes and is, of course, an avid U of L fan.

Jacob Kleehamer, Finance Director

Picture of Jacob Kleehamer, Finance Director

Jacob joined the Derby in 2004 and has over 15 years of finance experience. He was instrumental in developing the current quote tool utilized to price all new business opportunities. Jacob was promoted to the leadership team as Director of Finance in 2011. He is responsible for reporting monthly financial performance to the board of directors, overseeing completion of the annual budgets, leading customer contracts negotiations, reporting bank covenants, pricing of new business opportunities, and overseeing the financial integration of acquisitions. As director of finance, Jacob works closely with all of Derby’s plant managers on cost savings projects, capital projects, and ensures that monthly financial performance goals are met. He has a Bachelor of Science Degree, majoring in finance from Indiana University and MBA from Indiana University. Jacob enjoys spending time with his family and the outdoors with activities such as camping, biking, hiking, fishing, and hunting.

Greg Stamp, Director of Information Technology

As the Director of IT, Greg is responsible for managing the Derby IT department which includes project managers, programmers, and system administration.  His 30 years of technology experience is key to Derby’s ability to provide customized information solutions to meet the requirements of our customers.  Greg holds a Bachelor of Science Degree in Computer Information Systems from DeVry Institute of Technology.

Bill Marks, Director of Sales

Picture of Bill Marks, Director of Sales

Bill joined Derby in 2014 as Sales Manager bringing over 30 years of industrial sales experience to the team. In 2015, Bill joined the leadership team as Director of Sales. He manages key accounts and business development for the Louisville facility and leads and supports the Derby sales force. Bill has lead the effort to include e-commerce fulfillment as a Derby service offering. Bill also supports the Derby marketing efforts that include developing marketing tools that promote the company’s core competencies. He is a graduate of the University of Louisville with a Bachelor’s Degree in Marketing. Bill is a big supporter of the UL Cardinals sports teams and enjoys cycling, swimming, and running.

Renee Hunt, PHR Vice President of Human Resources

Renee has been with Derby for twenty years. She has over 25 years of HR experience in manufacturing environments. Renee attended Eastern Kentucky University, is certified as a Professional in Human Resources (PHR), and is a member of the Society for Human Resource Management. Renee enjoys family time, travel and U of L sports.

Darrell Phillips, Director of Operations

Picture of Darrell Phillips, Director of Operations

With over 40 years of manufacturing and quality control experience, Darrell has been with Derby since 2000. As Director of Operations, Darrell works closely with all facilities managers to ensure that our plants are properly staffed to meet customer demands. As a certified Six Sigma Master Black Belt, he also leads our Quality groups with our continuous improvement efforts to improve our operations and providing high levels of customer satisfaction.
Education – Bachelor’s Degree in Manufacturing Engineering from Western Illinois University. Darrell is an active outdoorsman who enjoys hunting and fishing and spending quality time with his family.

Ryan McDermott, Director of Project Management

Ryan joined the Derby team in 2012 as a Helpdesk Intern and then began learning the Derby business from the ground up.  He continued to use his background to expand his knowledge of Derby’s core ERP and WMS systems becoming one of the in-house experts.  Ryan has been instrumental in integrating customers and internal processes into our internal systems.  He joined the leadership team as Director of Project Management in 2021 and continues to push enhancements throughout the organization.  Ryan graduated from the University of Louisville in 2012 with a bachelor’s degree in Business Administration with an emphasis in Computer Information Systems.  Ryan enjoys spending his time with family and friends especially UofL football games and the lake during the summer.

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