Carl Dennin has more than 20 years of experience in various construction segments including health care, data centers, parking structures, commercial, and infrastructure. He joined Messer in 2002, shortly after graduating from Purdue University with a bachelor's degree in civil engineering. Carl worked in the Cincinnati region after graduation, then relocated to Indianapolis in 2007 to help establish Messer's presence and hone his experience in health care construction. Carl is a member of the Indiana Society of Healthcare Engineering (ISHE), American Society for Healthcare Engineering (ASHE) and is a Certified Healthcare Constructor (CHC). He is also active in the community as co-chair for the American Heart Association Hard Hats with Heart 2023 Campaign, board member for the Boys & Girls Club of Indianapolis and serving on several committees and volunteering in the children's ministry at his local church.