1995
Castle founded by Julie Ledbetter
2002
Added earthwork and utility capabilities
2005
Started national work
2006
Added prime sitework/turnkey site construction services
2010
Added Mapping
2012
Launched Castle Building Group (vertical construction group)
2013
Three-time winner of AGC St. Louis Contractor of the Year Site Construction Services
Moved to Webster Groves location
2014
Acquired by McCarthy
2015
Engaged in national solar effort
2017
Reached $50 million in revenue
2018
Added water/wastewater
