Circonomy Solutions creates regenerative results for a better tomorrow. Our unparalleled expertise, creativity, and knowledge make it possible. 

Our mission: 
​To help private and public sectors reach their full potential while making the world a better place for future generations. 

Our History

Circonomy Solutions is headquartered in Phoenix, Arizona. Co-founded by John Trujillo and David Hertzberg, the duo have more than 40 years of combined results-driven, public/private sector experience within the waste, sustainability and circular economy industries. Circonomy Solutions assists businesses, nonprofits, start-ups and government agencies with creating operational efficiencies, advancing new, disruptive environmental technologies, and creating new economic streams, as well as job creation opportunities.  

Our Team

​Circonomy Solutions has a full team of resident sustainability experts to assist you with your project - large or small. We can assist with projects locally, nationally and internationally.

The brains behind the operation. 

John Trujillo

Prinicpal
John Trujillo retired as the City of Phoenix Public Works Director in April 2017 with over 25 years of government experience. During his tenure, he was responsible for the fourth largest city department in Phoenix with more than 1,000 employees in seven divisions and a gross operating budget of a quarter billion dollars per year. He was instrumental in the rise of Phoenix as one of the world’s most sustainable cities. He reinvented the city’s waste collection and recycling programs to streamline pickup, dramatically increase resident participation and move the city toward zero-waste. John’s significant experience as former City of Phoenix Public Works Director enables him to provide proactive input regarding key issues and challenges; as well as communicate effectively with all stakeholders from the elected officials and City Management to the Public. 

In order to meet these goals, John provided the vision and leadership that led to the development of Reimagine Phoenix, a circular economy initiative to create economic value from city waste. The initiative, created public/private partnerships that diverted waste, fostered economic development, encouraged entrepreneurship and sparked innovation. As a result, Trujillo expanded the Phoenix Public Works Department beyond its role as an excellent service provider to a viable job creator and driver of sustainable economic growth for the city. 

John is internationally recognized for his leadership in sustainability and Circular Economy. In 2015, John was selected as one of the Top Ten Public Works Leaders of the Year by the American Public Works Association and in 2017 he received the Gabe Zimmerman Public Service Award from the Center for the Future of Arizona.

David Hertzberg

Principal
David Hertzberg is an entrepreneur focused on sustainability and waste diversion.  Founding Sonoran Waste Disposal in 2005, David grew the company from one truck and a few containers to a multi-million dollar per year regional waste company servicing some of the most prestigious customers in Arizona. Some of Sonoran’s key customers were Arizona State University, Mayo Clinic Hospitals, NXP Semi-conductors, On Semi-conductors, Freeport McMoran, Sundt Construction, DPR Construction, and others. At the time the company was sold, Sonoran Waste Disposal was hauling over 40K tons of waste and over 20K tons of recyclables with a fleet of 12 trucks and 13 employees.

David continues to participate in new ventures that move the environmental movement forward. One of the first LEED Accredited People in the waste industry, he spearheaded the change necessary to create a recycling economy that supported the construction industry. David advanced accurate reporting in recycling and connected the construction industry to innovative markets for their waste.
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David sits on the Board of Directors for Keep Phoenix Beautiful, Arizona Advisory Board for the United States Green Building Council, member of Entrepreneurs Organization (EO) and the Construction Against Cancer” Big Dig” Founding Board. David also Chaired of the Arizona Recycling Coalition Board of Directors for 5 years and sat on ADEQ’s Recycling Advisory Board for 3 years.  An Arizona native and graduate of University of Arizona, his leadership provided the necessary disruptive process to an under-served demand for sustainability in Arizona.