Local (512) 637-1831
Toll Free (877) 432-8378

TDLR Mold Assessment Company
License #ACO0114

TXDSHS Asbestos Consultant Agency
License #100329

IEC Team

Indoor Environmental Consultants, Inc. – Key Team Members

Indoor Environmental Consultants, Inc. is a full service licensed and accredited indoor environmental quality consulting firm located in Austin, Texas.  With numerous years of experience in all aspects of IAQ assessment and remediation recommendations, Indoor Environmental Consultants, Inc. has the solution that is right for you.

Indoor Environmental Consultants, Inc. vision is founded in our continued commitment to ensure that indoor environments are maintained at acceptable and healthy levels. We believe this can best be accomplished by maintaining a proactive stance dedicated to the health of these environments. We are constantly seeking ways to improve the quality of services we provide to the community and look forward to providing proactive programs and testing to facilitate healthy sustainable environments.

Hollis Horner, Principal IAQ Consultant – B.S. Chemistry, MBA, MAC, CIEC, LEED AP

Hollis Horner, MAC, CIEC, LEED AP is a chemist with specialized knowledge and expertise in the areas of indoor air quality management, industrial hygiene sampling, environmental field sampling techniques, and LEED indoor environmental quality certification. He has been providing environmental consulting services for over 30 years, including government, commercial, industrial, health care, and laboratory areas of expertise. Hollis is accredited by Green Business Certification, Inc. (GBCI) as a LEED Accredited Professional, and has managed LEED Indoor Air Quality certification for over 30 projects. Hollis served on the Texas Department of Health Mold Task Force and on the Texas Residential Construction Commission – Mold Reduction and Remediation Task Force. He is licensed by the Texas Department of Licensing and Regulation as a Mold Assessment Consultant.

James Reid, Senior IAQ Consultant – MAC, IAC, CIEC

James Reid, MAC, CIEC, IAC has 35 years of experience in the field of environmental evaluations, and prior to working with IEC served as Environmental Programs Director for the State of Texas General Services Commission. His areas of expertise include indoor air quality investigations for mold, asbestos, chemical exposure, hazardous materials, and particulate contamination. He has extensive experience in indoor air quality investigations, and has personally conducted over 5,000 field investigations. James is accredited as a Certified Indoor Environmental Consultant (CIEC). He is licensed by the Texas Department of State Health Services as an Asbestos Individual Consultant and by the Texas Department of Licensing and Regulation as a Mold Assessment Consultant.

Natalie Cancino, Operations Manager, Business Administrator – Bachelor of Science

Natalie Cancino has 25 years of experience in office administration, human resources, contract management, insurance management, payroll administration, accounts payable, accounts receivable, sales tax, and invoicing. She is also proficient in client interface, laboratory coordination, field instrumentation, project management, and technical report preparation. Natalie holds a Bachelor of Science degree from Texas A&M University – Corpus Christi. She has been with IEC since its inception in 2001.

Indoor Environmental Consultants, Inc. – Licenses And Certifications​

Indoor Environmental Consultants, Inc. (IEC) is licensed as:

  • Texas Dept. of Licensing and Regulation (TDLR) Mold Assessment Company License #ACO0114
  • Texas Dept. of State Health Services (DSHS) Asbestos Consultant Agency #100329

IEC Employees are licensed as:

  • TDLR Mold Assessment Consultant (MAC)
  • DSHS Individual Asbestos Consultant (IAC)

In addition to licensing from the TDLR and DSHS, IEC employees are certified by the following associations:

  • American Council for Accredited Certification (ACAC) – formerly American Indoor Air Quality Council (AmIAQC)
  • Green Business Certification, Inc. (GBCI) – formerly Green Building Certification Institute

IEC Consultants hold certifications including:

  • Council-certified Indoor Environmental Consultant (CIEC)
  • Leadership in Energy and Environmental Design (LEED Accredited Professional)
IEC President and Principal IAQ Consultant Hollis L. Horner is a LEED Accredited Professional.


“LEED AP” and the related acronym, and the LEED AP logos are trademarks owned by the U.S. Green Building Council and awarded to individuals under license by Green Building Certification Institute.

IEC is proud to be associated with: