Green Group Holdings


David Green, President

David has over 20 years of experience in the solid waste industry. He first represented waste companies as outside counsel. He then joined the largest waste and recycling company in America where he served as a Region General Counsel in Florida and Texas before becoming Vice President and General Counsel for the company’s Southern Group.

David moved into operations serving as a Market Area Vice President and eventually managed landfill development and acquisition throughout the South. He has successfully permitted and expanded landfills, negotiated landfill privatizations and completed over $100 million in acquisitions. David remains a member of the Florida Bar Association.

Bruce L. Roy, Corporate Controller

Bruce has in excess of 25 years of business experience in accounting with the Solid Waste and Banking Industries. His experience in the Waste Industry includes the responsibilities of Corporate Controller, Chief Financial Officer and Southeast Regional Controller.

Thad Owings, Senior Project Manager - Landfill Operations

Thad has over 20 years in the waste industry working for one of the nation’s largest waste companies. His experience includes all phases of landfill permitting, construction and management for both greenfield sites and landfill expansions.

Thad has successfully negotiated contracts with solid waste authorities, major municipal contracts and large industrial customers. Thad’s expertise also extends to community outreach and engagement and working closely with elected officials throughout the permitting process.

Alfonso Sifuentes, Senior Project Manager

Alfonso, who is bilingual, has more than 25 years of construction and project management experience. He successfully started and sold a manufacturing company specializing in engineered building components. He also brings knowledge in the medical waste industry having been previously employed with Stericycle, Inc.

Trey Smith, Sales and Marketing

Trey Smith, president and founder of Green Rock Strategies, LLC,  has been providing waste services in the environmental industry for more than 20 years. Trey’s core competency is his understanding of the markets and ability to deliver strategic, sustainable solutions to customers across the spectrum that are dealing with all facets of waste issues.

Trey provides sales and marketing services for each of Green Group’s disposal facilities as well as the direct contractor for key lines of business. His work with the company has covered projects across the United States in all aspects of waste management to include coal ash transportation and disposal for the utilities in the Southeast to oilfield waste in the Powder River Basin, Texas and the Marcelles, to long haul projects for municipal solid waste and contaminated soils out of the Northeast.

Trey has extensive experience in hazardous and non-hazardous waste management and logistics, re-use, recycling and waste-to- energy, waste treatment, remediation and industrial services, abatement and demolition, exploration and production waste, and emergency and disaster response. His record of providing sustainable, cost effective solutions includes many successful projects that required meeting challenges ranging from marine transfer to brownfields to waste-by-rail to wetland restoration.

From 1996 to 2012, Trey worked with Republic Services and was instrumental in the development of Republic Services’ special waste program, where he held the position of Director of Special Waste for the Eastern U.S. and had responsibilities in 20 landfill markets from Pennsylvania to Florida.


Consulting Professionals

Green Group has a team of hand-picked professionals in the legal, government affairs and public relations arenas. This team of professionals has the highest regard within each field and provides unparalleled access and knowledge needed to move our projects forward.

Green Group Lead Engineer

William F. Hodges, P. E., Hodges, Harbin, Newberry & Tribble, Inc. – Macon, GA

Green Group Environmental Attorney

Brent Ryan, McElroy, Sullivan, Miller, Weber & Olmstead LLP – Austin, TX

Environmental Consultants

Jim Blackburn, Environmental Consultant – Houston, TX

Government Consultants

Ron Lewis, Government Affairs Consultant – Austin, TX