Commercial fusion is a term used to refer to privately owned companies whose aim is to sell electricity produced by
nuclear fusion
Nuclear fusion is a nuclear reaction, reaction in which two or more atomic nuclei combine to form a larger nuclei, nuclei/neutrons, neutron by-products. The difference in mass between the reactants and products is manifested as either the rele ...
. The industry now consists of over 40 companies that have attracted a combined total of more than $6 billion in investment.
Commercial fusion companies
First fusion electricity to the grid

For decades researchers have famously said that fusion power is always 30, or even 50, years away. The advent of commercial fusion has changed that, and now fusion power is typically predicted to be around 10 years away, with most companies predicting that the first fusion plant will deliver electricity to the grid before 2035.
Although the majority of the companies have only existed for a few years, some have already failed to deliver on their predictions.
General Fusion first predicted that it would deliver electricity to the grid by 2009.
References
{{Fusion power
Fusion power
Nuclear technology companies