Nano-C specializes in the chemistry of nanostructured carbon. It focuses on the development of fullerenes, carbon nanotubes, and their chemical derivatives within the electronics and energy sectors. The company offers products and processes that contribute to the creation of devices, emphasizing their applications in various sectors. It is important in device design and performance, addressing the demand for high-value applications. It was founded in 2001 and is based in Westwood, Massachusetts.

Aligned Carbon develops semiconductor-pure, aligned carbon nanotubes (CNTs) integrated on industry-standard wafers. Their offerings include a technology platform for the growth of aligned CNTs via wafer-scale chemical vapor deposition and a purification process that ensures semiconducting purity while maintaining alignment and is compatible with fabrication. Aligned Carbon's innovations focus on materials for artificial intelligence processors, low-power wireless systems, and quantum devices. It was founded in 2018 and is based in Santa Clara, California.

CHASM Advanced Materials specializes in the manufacturing of carbon nanotechnology materials within the materials industry. The company offers a range of products, including transparent heaters for automotive and industrial applications, EMI and RF shielding materials, and battery materials for enhanced performance. It serves sectors such as the automotive, aerospace, defense, consumer electronics, and construction industries. It was founded in 2015 and is based in Canton, Massachusetts.

Carbon Fly develops and produces carbon nanotubes within the materials science sector. It offers carbon nanotubes in various forms such as powders, films, and cables, which are used as structural and functional materials across multiple industries. Its technology enables the use of carbon nanotubes in sectors like energy, aerospace, construction, and semiconductors due to their properties. The company was founded in 2022 and is based in Tokyo, Japan.

NoPo Nanotechnologies specializes in the production of single-walled carbon nanotubes (SWCNT) for applications across multiple industries. Its offerings include small-diameter nanotubes with properties such as tensile strength, electrical conductivity, and heat conduction, suitable for use in electronics, electric vehicle (EV) batteries, medical devices, and water filtration systems. The company serves sectors that utilize advanced material properties, including the electronics, automotive, and aerospace industries. It was founded in 2011 and is based in Bengaluru, India.

Hyperion Catalysis International specializes in the development and commercialization of carbon nanotube technology within the nanotechnology sector. The company's flagship product is a conductive, vapor-grown, multi-walled carbon nanotube known as FIBRIL™ nanotubes, which are integrated into plastics to enhance electrical conductivity and provide additional benefits due to their unique structure. These composite materials find applications in the automotive and electronics industries, among others. It was founded in 1982 and is based in Cambridge, Massachusetts.