Green Group Holdings is backed by two privately held investors, Herzog, Inc. and Phillips & Jordan.


Phillips & Jordan Logo

Herzog Contracting Corp. is a proven industry leader in landfill operation, civil construction, rail maintenance, and development of specialized railroad and mass transit equipment throughout North America.

Phillips & Jordan is a woman-owned heavy civil and ROW infrastructure contractor that pursues challenging projects with complex problems, difficult conditions, and aggressive schedules. It operates with a sense of urgency and a desire to provide the best possible outcomes for its clients. P&J’s commitment to quality is proven by its exceptional work ethic, deep integrity, extensive resources, and priority on safety.

We have a long history of trusted collaboration with world-class organizations

We have a minority ownership interest in and a board seat with Integrated Waste Solutions Group (IWSG). Founded in 2017 by Charlie Appleby and Chris Beall, IWSG develops integrated solid waste collection and disposal operations in selected geographic regions throughout the United States. IWSG is currently owned in part by NOVA Infrastructure Fund I, L.P. together with its parallel funds, which are managed by NOVA Infrastructure Management, LLC (NOVA Infrastructure). After years of hard work to develop the 130 Environmental Park in Lockhart, Texas, we sold the property to IWSG to own and operate the facility.
We invest in NOVA Infrastructure, the majority owner of IWSG, and collaborate with NOVA on evaluation of investments in the environmental services industry. Founded by Chris Beall and Allison Kingsley, NOVA Infrastructure is an infrastructure investment firm that invests in transportation, environmental services, energy, and other sectors in North America. NOVA focuses on differentiated, value-added strategies in the middle market infrastructure segment. NOVA pairs the best downside protection features of the infrastructure asset class with operationally-focused, value-added upside strategies.


We are pleased to count Hodges, Harbin, Newberry & Tribble, Inc. (HHN&T) as our primary engineering partner.

Hodges, Harbin, Newberry & Tribble, Inc. is a Georgia-based civil and environmental engineering consulting firm with locations in Macon, Savannah, Atlanta, Statesboro, Georgia and Greenville, South Carolina. It was founded in 1990 and has decades of experience specializing in the design, permitting, and consulting of complex facilities for a variety of industries. It is currently licensed to work in over 20 states, including all southeastern states. Its public and private sector clients include Fortune 500 companies, local governments, and small privately-owned companies throughout the U.S.


We are pleased to count Green Rock Strategies, LLC as a strategic sales partner.

Based in Charleston, South Carolina Green Rock is a full service commercial and industrial waste management firm supporting clients across the country in an array of industries. From strategy and logistics to recycling and disposal, they exist to help you achieve your sustainability goals.  Green Rock’s leadership brings decades of experience, agile methods and expansive industry expertise to every job and they fit seamlessly in as extension of our team to deliver effective and efficient solutions that meet tailored waste management needs for Green Group.