Yasushi Umemura

Diamond Generating Europe Ltd. distributes electronics, fuels, metals, and chemicals. The firm focuses on new energy resources to generate power. The company was founded on September 13, 2012 and is headquartered in London, the United Kingdom.

Diamond Transmission Corp. Ltd. is a holding company. The firm provides electricity transmission services. The company was founded in April 11, 2013 and is headquartered in London, the United Kingdom.

Diamond Transmission Partners Galloper Ltd. engages in electricity transmission business. The company was founded in April 13, 2017 and is headquartered in London, the United Kingdom.

Artemis II - CMGT 2 GmbH is a German company that wholesales durable goods. The company is based in Hamburg, Germany. The CEOs are Masanobu Muramiya and Yasushi Umemura. The company was founded in 2013.

Moray East Holdings Ltd. produces electricity. The private company is based in London, UK.

Part of Mitsubishi Corp., Diamond Generating Europe BV engages in exploration and development of oil and natural gas. The company is based in Amsterdam, Netherlands. The CEO of the Dutch company is Yasushi Umemura.

Part of INPEX Corp., Diamond Generating Europe Investments Ltd. is an investment holding and British asset management company. The company is based in London, UK. The company was founded in 2018. Diamond Generating Europe Investments was acquired by Inpex Renewable Energy Europe Ltd. from Mitsubishi Corp. on March 02, 2023.

Diamond Germany 1. Transmission GmbH provides management services. The company is headquartered in Nuernberg, Germany.