Derrick Denis

Clark Seif Clark, Inc. (CSC)

Vice President of Indoor Environmental Quality

For nearly a quarter century Mr. Derrick A. Denis has provided professional environmental health and safety consulting and industrial hygiene services throughout the USA. 
Since earning a B.S. degree in Environmental Science from Phillips University in Oklahoma, Mr. Denis has worked in both environmental consulting and remediation.  
Mr. Denis 
• Is the long-time Vice President of Indoor Environmental Quality for Clark Seif Clark, Inc. (CSC).
• Has contracted, managed, and/or performed over 15,000 indoor environmental quality (IEQ) projects. 
• Holds or has held numerous industry-relevant certifications 
• Presently serves as the Chapter Director for the Phoenix IAQA Chapter. 
Mr. Denis has an established record as a qualified impartial expert for both plaintiff & defense with numerous appearances in depositions and in trials.