National Headquarters, Los Angeles Office
Jamie Valdivia
Executive Vice President
jaime@nationalitc.com
David Otterstein
Quality Manager
david@nationalitc.com
Jarrod Ferruccio
Chief Financial Officer
jarrod@nationalitc.com
Laura Braeunig
Examination Development/Technical Writer
laura@nationalitc.com
Diana Monarrez
Certification Manager
diana@nationalitc.com
Renee Yount
Medical Gas, West Virginia Fire Sprinklerfitter
renee@nationalitc.com
Ines Perez
Journey Level Plumber, Fitter, HVAC, NBOPE, STAR Mastery
ines@nationalitc.com
Marina Garza
Braze Continuity, IBEW, EICA
marina@nationalitc.com
Ashley Olmos
Receptionist
receptionist@nationalitc.com
Metairie, Louisiana Office
Dana A. Colombo
Southern Regional Manager
dana@nationalitc.com
Donald (DJ) J. Berger
Southern Regional Representative
dj@nationalitc.com
Janel Mezzic
Certification, Medical Gas Maintenance
janel@nationalitc.com