Celgard is a company that focuses on the development and production of high-performance membrane technology, operating primarily in the energy storage and battery sectors. The company's main offerings include products used in a variety of energy storage applications, such as lithium-ion batteries, lithium primary batteries, and other specialty battery solutions, as well as in technical textiles and other barrier-type applications. Celgard primarily sells to sectors that require energy storage solutions and technical textiles, such as the electric vehicle industry and the medical personal protective equipment industry. It was founded in 1999 and is based in Charlotte, North Carolina.

Verkor focuses on low-carbon battery manufacturing for electric mobility and stationary storage. The company specializes in the production of batteries that support sustainable transportation and energy solutions. Verkor primarily serves the electric vehicle industry and the stationary energy storage market. It was founded in 2020 and is based in Grenoble, France.

Zeta Energy focuses on the development of advanced battery technology, specifically within the energy sector. The company's main offering is its lithium-sulfur battery technology, which has been designed to provide superior performance, cost-effectiveness, and safety compared to existing lithium-ion batteries. The batteries are based on lithium, carbon, and sulfur, which are abundant and economical materials. It was founded in 2014 and is based in Houston, Texas.

NiveauUp is a company focused on advancing battery technology within the energy storage industry. The company's main offerings include the development of batteries that charge significantly faster, last longer, and maintain high energy density. NiveauUp primarily serves the electric vehicle and energy storage sectors. It was founded in 2018 and is based in Taipei, Taiwan.

Circunomics operates in the energy sector with a focus on creating a circular economy for batteries. The company offers battery lifecycle management services and operates a B2B marketplace to facilitate the trade and second life of batteries. Circunomics primarily serves mobility OEMs, second-life applications, and recycling industries. It was founded in 2019 and is based in Mainz, Germany.

Akksel is a company focused on the recycling and repurposing of industrial-scale batteries, operating within the energy storage and recycling sectors. The company provides services such as tracking and tracing used batteries, dismantling and storing them safely, and organizing their reverse logistics. Additionally, Akksel operates a marketplace for discarded electric vehicle batteries, connecting suppliers and consumers within a circular economy. It was founded in 2017 and is based in Therwil, Switzerland.