Braemar Energy Ventures

Braemar Energy Ventures is a New York–based venture capital firm that focuses exclusively on technology and communications opportunities in the energy sector. Founded in the early 2000s by four principals with deep investment, financing, and operating experience in energy, the firm targets early‑stage companies across energy technology, mobility, power, resource revolution, and infrastructure. It helps portfolio companies mature by providing strategic guidance and financing expertise, leveraging industry knowledge to address long‑term challenges and enable management teams to focus on execution and growth as they integrate into the broader energy market.

Diane Bao

Associate

John Cavalier JD

Venture Partner

Dennis Costello

Partner

William Lese

Managing Partner

Jiong Ma

Partner

Past deals in Fossil fuels

CoalTek

Convertible Note in 2013
CoalTek, Inc. specializes in the production of high-quality coal by converting lower-grade coal into a cleaner energy fuel with reduced environmental impact. Founded in 1998 and headquartered in Tucker, Georgia, the company employs a proprietary volumetric heating process that targets moisture within the coal, utilizing 50-70 percent less energy compared to traditional thermal methods. This technology, developed over eight years by co-founder Dr. Jerry Weinberg and chief geologist Neil Ginther, effectively reduces the moisture content in various types of coal, enhancing plant efficiency and ensuring compliance with environmental standards. CoalTek opened its first commercial processing facility in Calvert City, Kentucky, in 2006, with an initial capacity of 120,000 tons per year, and plans for future expansions and additional facilities to meet the increasing demand for clean coal solutions.

CoalTek

Series D in 2009
CoalTek, Inc. specializes in the production of high-quality coal by converting lower-grade coal into a cleaner energy fuel with reduced environmental impact. Founded in 1998 and headquartered in Tucker, Georgia, the company employs a proprietary volumetric heating process that targets moisture within the coal, utilizing 50-70 percent less energy compared to traditional thermal methods. This technology, developed over eight years by co-founder Dr. Jerry Weinberg and chief geologist Neil Ginther, effectively reduces the moisture content in various types of coal, enhancing plant efficiency and ensuring compliance with environmental standards. CoalTek opened its first commercial processing facility in Calvert City, Kentucky, in 2006, with an initial capacity of 120,000 tons per year, and plans for future expansions and additional facilities to meet the increasing demand for clean coal solutions.

CoalTek

Series B in 2006
CoalTek, Inc. specializes in the production of high-quality coal by converting lower-grade coal into a cleaner energy fuel with reduced environmental impact. Founded in 1998 and headquartered in Tucker, Georgia, the company employs a proprietary volumetric heating process that targets moisture within the coal, utilizing 50-70 percent less energy compared to traditional thermal methods. This technology, developed over eight years by co-founder Dr. Jerry Weinberg and chief geologist Neil Ginther, effectively reduces the moisture content in various types of coal, enhancing plant efficiency and ensuring compliance with environmental standards. CoalTek opened its first commercial processing facility in Calvert City, Kentucky, in 2006, with an initial capacity of 120,000 tons per year, and plans for future expansions and additional facilities to meet the increasing demand for clean coal solutions.

CoalTek

Series A in 2005
CoalTek, Inc. specializes in the production of high-quality coal by converting lower-grade coal into a cleaner energy fuel with reduced environmental impact. Founded in 1998 and headquartered in Tucker, Georgia, the company employs a proprietary volumetric heating process that targets moisture within the coal, utilizing 50-70 percent less energy compared to traditional thermal methods. This technology, developed over eight years by co-founder Dr. Jerry Weinberg and chief geologist Neil Ginther, effectively reduces the moisture content in various types of coal, enhancing plant efficiency and ensuring compliance with environmental standards. CoalTek opened its first commercial processing facility in Calvert City, Kentucky, in 2006, with an initial capacity of 120,000 tons per year, and plans for future expansions and additional facilities to meet the increasing demand for clean coal solutions.
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