CTOs on the Move

Largo Concrete, Inc. is a full service structural concrete contractor. We have been a privately held business for over 25 years with over 1,450 employees. Past President and Post-Tensioning Hall of Fame inductee, Hal Long, has long been recognized as a pioneer of post-tensioning and brings over 50 years of experience in construction. Mark Carnathan Vice President and owner and Ken Long- President and owner, head the Northern and Southern California divisions, respectively. Co-founder Mark Carnathan has 28 years of concrete construction experience and Ken Long has been with the firm for 20 years.