Advancing Today’s Energy for Tomorrow’s Sustainable World

Founded in 1998, Quantum Energy Partners is a leading global provider of private capital to the responsibly sourced energy and energy transition & decarbonization sectors, what we call the Sustainable Energy Ecosystem.

About Quantum

Quantum is more than an investment firm; it is a partner for progress. We build energy companies that will help ensure a responsible transition to a net-zero carbon future. Our team has deep experience investing across the energy value chain, allowing us to meet today’s biggest energy challenges with discipline and agility. We are entrepreneurs first, with a long- term vision and a collaborative mindset. Through our high-tech and data-driven approach, strong commitment to ESG, and vast industry expertise, we are setting the standard for energy excellence.

What We Do

Quantum has developed a platform of investment strategies to take advantage of the wide variety of opportunities within the Sustainable Energy Ecosystem. Our knowledge of the entire energy value chain and our capability to invest across the capital structure provide us with unique advantages to support the energy transition. Although we have a flexible investment mandate, we operate with a “one team” mindset.

Private Equity

We provide growth capital to leading energy and sustainability entrepreneurs.

Credit & Structured Capital

We offer credit-oriented solutions to private and public energy and sustainability companies.

Venture Capital

We invest in transformative energy and sustainability technology companies.

Strategic Shared Services

We utilize our combined scale and data to create modern, data-driven enterprises.

Our Portfolio

We build great companies led by great people. Since inception, we have made more than 100 investments across the energy industry. Our 20+ year track record of successfully investing in the energy and sustainability sectors has made us a leading partner to entrepreneurs focused in these areas.

Our Impact

We believe that incorporating, measuring, and managing Environmental, Social, and Governance (ESG) factors does not compromise returns but instead drives value creation. Quantum’s ESG strategy is consistent with our hands-on investment style. We proactively identify risks and opportunities to inform our decision-making across each step of the investment lifecycle.


exposures that conflict with principles and values


ESG risks and opportunities


into integrating ESG analysis


with outcome-oriented investments


through results and engagement

Latest News

Get In Touch

Contact us to learn more about Quantum.