Mason Graphite is a Canadian mining company focused on the exploration and development of its 100% owned Lac Gueret graphite project in northeastern Quebec.

In January 2014, Mason Graphite acquired 40% of graphene R&D company NanoXplore. This was later diluted to 31%. In September 2016 Mason Graphite announced a $28.8 private placement and its intention to increase its stake in NanoXplore.

Lomiko Metals Inc. (TSXV:LMR, OTCQX:LMRMF, FSE:DH8B) is a Canada-based junior miner at the exploration-stage.

Lomiko is invested in graphene technologies through Graphene 3D Labs and Graphene ESD.

American Graphite Technologies (AGT) is a mineral exploration and technology development company. AGT has 100% ownership of 100 mineral claims in Quebec, Canada (close by to Focus Graphite's proven graphite resource). AGT is also involved with graphene related research.

In March 2013 AGT and Cheap Tubes announced that have successfully produced graphene paper test samples, but the companies are no longer collaborating. In September 2013 AGT launched a project with Ukraine's Kharkiv Institute of Physics and Technology to develop graphene-based working material for 3D printing.

China Carbon Graphite Group, headquartered in Shanghai (with the main office in the US), manufactures and sells graphite-based products in China.

Focus Graphite (previously Focus Metals) is a mid-tier junior graphite company, mine developer and technology company based in Ottawa, Canada. It is the owner of the highest-grade (roughly 16%) technology graphite resource in the world (at Lac Knife in Quebec).

The company's goal is to become an industry leader by becoming the lowest-cost producer of technology-grade graphite.

Northern Graphite Corporation is a Canadian mine development company. It's main asset is the Bissett Creek graphite project located 100km east of North Bay, Ontario. The company was involved with Graphene research back in 2011.

In 2023 Northern said that it acquired an ownership stake at NeoGraf Solutions.