Ron is the Founder and CEO of Closed Loop Partners, a New York-based investment firm comprised of venture capital, growth equity, private equity, project finance and an innovation center focused on building the circular economy. Investors include many of the world’s largest retailers and consumer goods companies as well as family offices interested in investments that provide strong financial returns and tangible social impact.

In 2021, he released his first book with Penguin Random House, "The Waste Free World: How the Circular Economy Will Take Less, Make More, and Save the Planet," highlighting how companies that utilize circular economy business models will generate the most value and lead their industries.

Prior to Closed Loop Partners, Ron was the Deputy Commissioner of Sanitation, Recycling and Sustainability in New York City in the Bloomberg Administration. He oversaw the collection and processing of NYC’s paper, metal, glass, plastic, textile waste, electronic waste, organics, and hazardous waste as well as public policy. In 2013, NRDC and Earth Day New York named Ron as the Public Official of the Year in New York City.

During his career, Ron has been recognized with a number of business and environmental awards including recognition as a ‘Champion of the Earth’ by the United Nations Environment Program which is the highest distinction for environmental protection given by the United Nations and recognizes outstanding visionaries and leaders in the fields of policy, science and entrepreneurship and the Medal of Excellence from Columbia University which recognizes alumnus under the age of 45 for excellence in scholarship, public service and professional life.