For more than 20 years, the Byington Group has provided Fortune 500 companies and governmental agencies the confidence that they are compliant with Environmental, Health, and Safety regulations, prepared environmental and safety audits, and have a thorough and comprehensive assessment to be ready for combining organizations through a merger or acquisition. Their expertise is technically sound. 

And your environmental house will be in order.  


Michael Byington, CPEA

Serving as the founder and principal consultant for the Byington Group, Michael has 40+ years of environmental compliance experience and worked with large corporations in a wide variety of industries, such as ExxonMobil Corporate Aviation,  Pilgrim’s Pride, Ennis Steel, and the Bureau of Engraving & Printing. And he has interacted with state and federal agencies, like the

U.S. Environmental Protection Agency (EPA), Texas Commission on Environmental Quality (TCEQ) and Railroad Commission of Texas (RRC). 

He holds a Bachelor of Science degree in Zoology from Texas A&M University and is a Certified Professional Environmental Auditor (CPEA).

Learn more about Michael.


Sheri Larson, P.G.

  Sheri is a licensed professional geologist with more than 25 years of geoscience experience, field work, and project management, including: UST removals, Phase I ESAs, compliance audits, surface and subsurface investigation, and soil and groundwater remediation and removal actions. 

She has considerable experience with the USEPA, TCEQ, and LDEQ and  helping small businesses and local governments comply with state environmental regulations. Sheri holds a Bachelor of Science from University Texas at Austin. 


Rebecca Luman

Rebecca is a champion for healthy, educated children, sustainable, resilient schools, and equitable access to nature for all. With three decades of experience in engineering, consulting, and project management, Rebecca has worked with a wide variety of clients to: assess legal requirements, develop EHS protocols, conduct multi-media compliance audits, and develop regulatory plans and reports. She has managed contamination investigations and removal actions at federal and state superfund and corrective action sites. 

Rebecca holds a BSCE, Civil Engineering from University Texas at Austin. She is president of Healthy Tweaks, LLC and LEED AP certified. 

Learn more about Rebecca.


Gary Barton

In his 40+ years of environmental management, Gary has held senior client manager positions at ISO Registrar organizations and in corporations in a variety of industries, including insurance.  His experience contributes to 

The Byington Group projects in the areas of: EHS and ISO 14001 management systems, risk assessments and audits, environmental due diligence for corporate M&As, GHG verification audits, and environmental insurance claims investigations.

Gary holds a Bachelor of Science in Biology from Tarleton State University. Learn more about Gary.