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 produces low-carbon batteries for the electric mobility and stationary storage markets in Europe. The company manufactures batteries for electric vehicles and energy storage systems, utilizing digital manufacturing technologies. Verkor primarily serves the electric vehicle industry and the energy storage sector within the European market. It was founded in 2020 and is based in Grenoble, France.

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.

Reneos is a company that focuses on providing solutions for end-of-life electric vehicle (EV) batteries, operating within the recycling and waste management industry. The company offers a range of services including the collection, transportation, storage, dismantling, and recycling of used lithium-ion batteries. Additionally, Reneos provides second-life solutions for these batteries, repurposing them for further use. It was founded in 2020 and is based in Tienen, Belgium.

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.

Redivivus specializes in lithium-ion battery recycling, focusing on logistics and material recovery in the recycling industry. The company offers services that include neutralizing battery hazards, cryogenic freezing, shredding, and safe transportation of battery materials for recycling. Redivivus targets the recycling challenges faced by various sectors, providing solutions to safely and efficiently handle end-of-life batteries. It was founded in 2020 and is based in Colorado Springs, Colorado.