Fortistar

Fortistar, based in White Plains, New York, is a private investment and energy asset management firm founded in 1993. The firm focuses on opportunities in the energy, transportation, and industrial sectors, with a particular emphasis on lower carbon energy generation. Fortistar owns and operates various facilities across the United States and Canada, including cogeneration plants, compressed natural gas fueling stations, landfill power plants, and biomass facilities. Additionally, the firm is involved in projects aimed at reducing carbon emissions in industrial operations, supporting the transition to a low carbon economy through its diverse portfolio of energy assets.

Mark Comora

Founder, CEO and President

Nadeem Nisar

Managing Director

11 past transactions

Nanoramic Laboratories

Venture Round in 2024
Nanoramic Laboratories is a Boston-based company focused on developing advanced energy storage technologies and materials. It specializes in designing, manufacturing, and licensing Neocarbonix electrodes for rechargeable lithium-ion batteries, as well as producing FastCAP ultracapacitors, which utilize nanocarbon-based electrodes for enhanced performance. The company also offers Thermexit, a line of high-performance thermal interface gap filler pads. Originating from research funded by NASA, the Department of Energy, and the Department of Defense, Nanoramic's innovations aim to revolutionize industries such as electric vehicle batteries and consumer electronics. Established in 2008 and formerly known as FastCAP Systems Corporation, Nanoramic continues to expand its product offerings, which include ultracapacitors capable of operating in extreme temperatures and various energy storage solutions tailored to meet market demands.

Vestaron

Series C in 2022
Vestaron Corporation specializes in the development, manufacture, and sale of peptide-based biologic crop protection products. Founded in 2005 and headquartered in Durham, North Carolina, with a research and development center in Kalamazoo, Michigan, Vestaron offers a range of bioinsecticides including Spear-T, Spear-Lep, and Leprotec, which target various pests in vegetables, fruits, and field crops. The company aims to enhance crop safety, efficacy, and sustainability by providing biopesticides that address resistance issues while ensuring safety for workers and the environment. Vestaron has received notable accolades for its innovative solutions, including the Bernard Blum Award and the Green Chemistry Challenge Award, recognizing its commitment to environmental stewardship and effective crop protection.

Vestaron

Series C in 2022
Vestaron Corporation specializes in the development, manufacture, and sale of peptide-based biologic crop protection products. Founded in 2005 and headquartered in Durham, North Carolina, with a research and development center in Kalamazoo, Michigan, Vestaron offers a range of bioinsecticides including Spear-T, Spear-Lep, and Leprotec, which target various pests in vegetables, fruits, and field crops. The company aims to enhance crop safety, efficacy, and sustainability by providing biopesticides that address resistance issues while ensuring safety for workers and the environment. Vestaron has received notable accolades for its innovative solutions, including the Bernard Blum Award and the Green Chemistry Challenge Award, recognizing its commitment to environmental stewardship and effective crop protection.

Titan Advanced Energy Solutions

Series B in 2021
Titan Advanced Energy Solutions specializes in developing advanced battery management systems for lithium-ion batteries, leveraging patented ultrasound technology to enhance battery performance. Their flagship product, ionView, delivers over 99% accuracy in state-of-health and state-of-charge assessments, which leads to a minimum 20% increase in charge capacity and a 125% extension of battery life. The systems also offer real-time monitoring, safety controls, and cell-level balancing. Titan's solutions cater to a diverse range of industries, including automotive, energy storage, mobile devices, and battery manufacturing, ultimately supporting the electrification and decarbonization efforts for a sustainable future. Founded in 2016 and located in Somerville, Massachusetts, the company was previously known as Titan Energy Analytics.

Skyryse

Series B in 2021
Skyryse, Inc. is an air mobility company founded in 2016 and headquartered in El Segundo, California. The company specializes in the development of helicopters and aircraft, targeting sectors such as emergency services, public transport, and urban planning. Skyryse has created a comprehensive hardware and software operating system known as FlightOS. This system provides a unified interface for pilots, allowing them to operate various types of aircraft, both rotorcraft and fixed-wing, using the same controls. By significantly reducing pilot fatigue and complexity, FlightOS enhances flight safety and improves emergency management. With just a few hours of training, any pilot can effectively fly any aircraft, whether from the cockpit or remotely, making aviation more accessible and efficient.

Nanoramic Laboratories

Venture Round in 2021
Nanoramic Laboratories is a Boston-based company focused on developing advanced energy storage technologies and materials. It specializes in designing, manufacturing, and licensing Neocarbonix electrodes for rechargeable lithium-ion batteries, as well as producing FastCAP ultracapacitors, which utilize nanocarbon-based electrodes for enhanced performance. The company also offers Thermexit, a line of high-performance thermal interface gap filler pads. Originating from research funded by NASA, the Department of Energy, and the Department of Defense, Nanoramic's innovations aim to revolutionize industries such as electric vehicle batteries and consumer electronics. Established in 2008 and formerly known as FastCAP Systems Corporation, Nanoramic continues to expand its product offerings, which include ultracapacitors capable of operating in extreme temperatures and various energy storage solutions tailored to meet market demands.

Ambri

Venture Round in 2021
Ambri, Inc. is a company based in Marlborough, Massachusetts, focused on developing innovative electricity storage solutions through its liquid metal battery technology. Founded in 2010 and originally known as Liquid Metal Battery Corporation, Ambri aims to revolutionize grid-scale power storage by offering batteries that are low-cost, long-lasting, and capable of storing significant amounts of energy. These batteries are particularly suited for applications in renewable energy systems and grid stabilization. Ambri's technology is designed to enhance the reliability and efficiency of energy storage, with systems that can tolerate short circuits and other operational challenges, making them a robust choice for grid operators.

Breakthrough Technologies

Private Equity Round in 2021
Breakthrough Technologies specializes in the manufacturing of innovative industrial products aimed at enhancing water and energy sustainability. The company focuses on reducing the use of water treatment chemicals, minimizing blowdown, and lowering operational costs while promoting cleaner and more sustainable practices. By addressing water loss recovery and providing chemical-free solutions, Breakthrough Technologies supports industries in achieving better environmental performance and overall business efficiency.

Pellucere Technologies

Venture Round in 2021
Pellucere Technologies, established in 2009 and headquartered in Houston, Texas, specializes in developing and manufacturing optical coatings for energy and industrial applications. The company's flagship product, MoreSun, is a solar anti-reflective coating with an anti-soiling silica shield, designed to enhance the performance of solar modules by enabling them to capture more light. Pellucere serves utility-scale projects globally, with a research and development and production facility in Corvallis, Oregon, and sales and customer support offices in Germany and Taiwan.

BayoTech

Series C in 2021
BayoTech, Inc. is a company specializing in the development and manufacture of hydrogen generation systems, including steam methane reformers. Founded in 2015 and based in Albuquerque, New Mexico, BayoTech focuses on advancing hydrogen innovation and sustainability by providing low-carbon hydrogen solutions aimed at reducing transportation emissions and optimizing the supply chain through local production. The company operates a network of hydrogen production hubs, known as BayoGaaS® Hydrogen Hubs, with sites in Wentzville, Missouri, and an upcoming facility in Stockton, California. Additionally, BayoTech manufactures high-capacity, high-pressure transport trailers in Tulsa, Oklahoma, to ensure safe and reliable distribution of hydrogen. The company's comprehensive portfolio includes solutions for hydrogen production, transport, storage, and fueling, making low-carbon hydrogen accessible and cost-effective for various sectors, including agriculture, fuel cells, and energy.

Castleton Power

Acquisition in 2016
Castleton Power a 72 megawatt (MW) gas-fired combined cycle power plant located in Castleton-on-Hudson, NY. The company was formerly known as EPCOR Power (Castleton) LLC and changed its name to Castleton Power, LLC.
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