2001
CTEH responds to 9-11 aftermath
2002
CTEH establishes a medical division
2003
CTEH establishes a health & safety consulting division
2005
CTEH establishes an environmental consulting division
2005
CTEH responds to Hurricane Katrina aftermath in Louisiana
2007
Construction of Little Rock, Arkansas headquarters complete
2009
Houston, Texas office opens
2010
CTEH responds to Deepwater Horizon/Macondo spill
2011
New Orleans, Louisiana office opens
2012
Seattle, Washington office opens
2013
Expansion of Houston, Texas office occurs
2013
Transition to broad-based employee ownership
2014
Jackson, Mississippi office opens
2014
CTEH provides consulting on Ebola outbreak in US
2015
CTEH expands crisis preparedness division
2020
CTEH performs COVID-19 cleaning & disinfection oversight across multiple sectors
2020
CTEH joins the Montrose Environmental Group, Inc. family of companies