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.

Aligned Carbon produces carbon nanotubes in a manufacturable form factor to meet the integrated circuit industry's exacting specifications. It is focused on the semiconductor industry, specifically in the development of advanced materials. The company's main offering is the production of semiconductor-pure, aligned carbon nanotubes (CNTs) on industry-standard wafers at the manufacturing scale. The company was founded in 2018 and is based in Santa Clara, California.

Canatu is a carbon nanomaterial developer specializing in the creation of advanced carbon nanotubes for various industries. The company's main offerings include carbon nanotube-based products such as EUV pellicles for the semiconductor industry, film heaters for automotive applications, and electrochemical sensors for healthcare. Canatu's products are designed to enhance the performance and functionality of devices across these sectors. It was founded in 2004 and is based in Vantaa, Finland.

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

NanoLab is a nanotechnology-focused product development and contract research organization operating in the advanced materials sector. The company specializes in the development and manufacturing of carbon nanotubes, sensors, composites, coatings, and nanoscale devices, as well as the processes required to produce them. NanoLab primarily serves commercial customers and the Department of Defense with its nanotechnology-enabled products. It was founded in 2000 and is based in Newton, Massachusetts.

Odysseus Technologies is a company focused on the manufacturing of Carbon Nanotubes (CNTs), operating within the materials science and manufacturing sectors. The company's main offering is the production of long, strong, and pristine CNTs, which are fundamental materials used for improvements in various areas such as textiles, coatings, electronics, and more advanced applications. The company primarily serves sectors that require structural materials and electronics. It was founded in 2008 and is based in Los Alamos, New Mexico.