Executive Profiles

David A. Henderson – President

Dave joined JJH in 1988, and continues the 80 year-long tradition of Henderson leadership following his brother, father and grandfather alike. He provides professional management and direction, while assuring the operational and financial success of the company. Dave continually strives to improve company operations, procedures and relations with a contagious energy and enthusiasm that exemplifies his principles of creative and positive leadership. Ensuring JJH principles of quality, integrity, honesty and outstanding customer service is a focal point of Dave’s leadership. In addition to leading the company, Dave is also a dedicated leader in various industry organizations and the local community, which remains a priority for JJH.

William G. Marshalla – Senior Project Manager

Bill has been with JJH since 1997. He is highly accomplished at project development, specifically in the water/wastewater treatment field. He leads a team of project managers on numerous commercial and municipal projects with an emphasis on water and wastewater treatment facilities. Bill is responsible for JJH’s overall project administration, estimating developments and providing leadership and support for the day-to-day operations while maintaining company direction.

Joseph M. Slattery – Senior Project Manager

Joe has been with JJH since 2001. He is highly accomplished at project development and implementation of design-build work. Joe leads a team of project managers on numerous commercial and municipal projects with an emphasis on federal/military development. Joe is responsible for JJH’s overall project administration, estimating developments and providing leadership and support for the day-to-day operations while maintaining company direction.

Joshua A. Little – Senior Project Manager

Josh has been with JJH since 2001. He served six years in the United States Marine Corps where he sharpened valuable leadership and team-building qualities. Josh also has extensive schooling in his professional field, which provides a solid foundation for his projects. His experience with JJH has included federal, commercial and industrial work for various types of clients. Josh is currently developing a Project Management team to continue JJH's highest standards of operation.

Jason M. Rudolph – Senior Project Manager

Jason has been with JJH since 1999. His past field-related construction experience, as well as his schooling, has made him a valued team leader at JJH. Jason's past project experience ranges from federal, municipal, commercial and private with an emphasis on water and wastewater treatment facilities. Jason has participated in project delivery systems of Lump Sum, Hard Bid, Design-Build and Cost Plus. Jason’s Project Management team is currently being assembled, and will maintain JJH’s highest standards of care under his leadership.

Jamie R. Shirling – Senior Project Manager

Jamie has been with JJH since 1994. Her experience at JJH covers a broad range of responsibilities including project management, administrative functions, human resources, safety and insurance. In conjunction with her previous construction experience, this diverse history with JJH makes her a versatile member of the management team. Past project management experience includes commercial, retail, municipal, governmental and private work. Jamie is also very active in several industry organizations, and is the immediate past President of NAWIC (National Association of Women in Construction) McHenry/Lake County Chapter. She serves as the National Block Kids Chair and Regional Construction Industry Chair. Jamie’s Project Management team is being devised to preserve JJH’s highest-quality operating standards.