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Why Choose Us?

Our History


CRGss was founded in 2011 in Memphis, Tennessee by Mary Singer.   When the original company converted to CRG Sustainable Solutions (CRGss), meeting the needs of building and plant managers wanting to identify direction and rationale for integrating sustainability opportunities to improve efficiency, trim cost and reduce waste.


The solution story continued in 2018 to include ways to communicate all the CSR findings into often overlooked and inspiring stories which help emphasize the value proposition of sustainability. What is good for society and the environment as a whole is now crucial to the way a company engages with stakeholders, employees, vendors and customers. 


Our Focus

The focus of CRGss is to provide sustainability services that deliver results.  Our clients include organizations from different sizes, geographies, and industries.  In order to serve our clients, we offer a wide range of services that include sustainability auditing, reporting & communications, carbon management and others. 

Our People

Mary Singer, CCIM, CPM - CEO and Founder


MARY SINGER is the Founder and CEO of CRG Sustainable Solutions. She and her colleagues specialize in corporate sustainability planning, and vendor performance assessments with key suppliers along the supply chain to deliver a competitive advantage.


Primarily focused on women and minority-owned companies throughout the supply chain, Mary extends her business practice to key strategic fields of resource efficiency and supply chain risk for small-to-medium sized businesses and non-profits. Mary has created and managed programs in waste reduction, green gatherings, change management and employee engagement training. Borrowing from the established models used by larger corporations, Mary’s strength is in breaking down the broad, complex conversations around sustainability into transferable opportunities.

Shawn R. Jones, PhD - Supply Chain Management Specialist


Dr. Shawn Jones helps companies ensure that supply chain optimization integrates sustainability goals for corporations and their suppliers as a source of competitive differentiation. Dr. Jones began his professional career in the United States Air Force where he attained the rank of Major as an Aircraft Maintenance Officer. His assignments included combat deployments to Southwest Asia and stateside bases in California, Utah, New Jersey, and Ohio.


Dr. Jones received his PhD from Michigan State University in 2008. His research and teaching interests include managing information and knowledge within supply chain environments, transient supply chains, project management, supplier development, simulation as a training tool, and developing supply chain leaders. He is also an Assistant Professor of Supply Chain Management in the Marketing and Supply Chain Management Department of a nationally ranked urban university. He now brings his capabilities to CRG SustainableSolutions as more businesses look to become leaders in driving value through the supply chain to the bottom line.

Anthony Gilbreath, Sustainability Specialist


Anthony has over 18 years' experience in oil & gas, alternative energy and sustainability consulting.  He developed the sustainability consulting products for Computer Sciences Corporation (CSC) EMEA during his time as their Lead Sustainability Consultant.


Anthony holds a Master of International Management from the Thunderbird School of Global Management and a Bachelor of Business Administration (Management Information Systems) and Bachelor of Arts (Russian Language) from the University of Oklahoma.


In his role at CRGss, Anthony brings the expertise of helping organizations develop comprehensive sustainability programs.  He authored the CurrentState Sustainability Audit which is a tool providing an organization with a complete sustainability implementation plan. Use of this powerful tool has saved clients critical time and money in their pursuit of a triple-bottom line.


He has worked with a wide range of international clients, including BAE Systems, Raytheon, Unilever, Gazprom, Bombardier, Transport for London, Virgin, SAP, and others. 

Sondra Wilson, Operations Manager


Ms. Wilson has been the Operations Manager at CRGss for over 23 years.  In this role, she has managed CRGss' personnel, resources, and its business connections for companies that support the Women's Business Enterprise National Council (WBENC). 


She has managed internal and external programs to facilitate women business within CRGss and for her community. Her leadership includes promoting sustainability goals and capturing the efficiency metrics needed for optimal resource use.  She coordinates CRGss' quality assurance standards and provides feedback to employees and customers.

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