CTDAT was launched in 2014 in Mexico as a consultancy firm that specializes in graphene production technologies. CTDAT developed a patent-pending process to exfoliate graphene from graphite.

The company is able to produce graphene oxide and reduced graphene oxide from ore mineral graphite. CTDAT is a private company with close contact with Arizona University, UNAM and UNISON. It seems that the company is no longer in business.

Perpetuus Carbon was a graphene producer based in the UK. In early 2014, the company announced that it will begin graphene production with an annual capacity of 100 tons.

The company produced surface modified graphene materials, customized to customer specifications.

Graphenex was established in 2014 with aims to develop prototype high energy supercapacitors based on graphene materials. The company aimed to develop the technology and team up with supercapacitor companies to commercialize it. It seems the company is no longer in business.

VG Scienta offers vacuum components, surface science instruments and complete design and manufacture of standard and special vacuum systems for scientific use. The company was established as a merger between Vacuum Generators and Gammadata Scienta.

In 2017 VG Scienta merged with Omicron NanoTechnology to create Scienta Omicron.

Cambridge Nanosystems was a start-up company that was spun-off from the University of Cambridge with an aim to supply graphene materials (and also Single-Walled Carbon Nanotubes - SWCNT).

The company produced high quality (metal-free) graphene flakes (200-500 nm), with a production capacity of several kg/day. CS was building a new 5-ton factory.

Cientifica, established in October 2013 in the UK, focuses on graphene applications. The company plan is to acquire and build businesses that make use of graphene materials.

TW Nano Materials was a supplier of single and multi-layer Graphene Oxide (GO) and Functionalized Graphene Oxide (FGO). The company is no longer in business.

R-Nano, based in Portugal and owned by Richanswers-Nanomaterials, was supplying laboratory supplies for the graphene industry.

The company does not seem to be in business any more.

India's Saivens Materials provides high purity nano materials, including CNTs, Graphene and inorganic materials. Saivens' graphene product, branded RexSheet is a high purity (over 90%) graphene sheet with a customized aspect ratio, grown using CVD.

The company does not seem to be in business any more and its web site is down.

Calevia was a Canadian startup company, established in August 2013 by Grafoid and ProScan Rx Pharma to co-develop graphene-based cancer thermal treatment platform.