The French electricity company subsidiary Exaion is currently operating over 150 Ethereum nodes
ChainCatcher news, according to The Big Whale, Exaion, a subsidiary of the French electricity company (EDF), is operating more than 150 Ethereum nodes, of which it operates about 10 nodes for itself and over 140 nodes on behalf of its clients. Exaion also validates an additional 150 nodes for Polkadot, Cosmos, Avalanche, and Tezos blockchains.EDF is the fifth largest electricity company in the world. On May 16, 2019, EDF collaborated with the Ethereum application iExec to conduct a new test, where the company released a visual simulator software GPUSPH on iExec, a decentralized application (Dapp) on Ethereum. (source link)