NTR plc is an Irish renewable energy company founded in 1978.

[clarification needed] NTR previously held stakes in infrastructure interests including Celtic Anglian Water, Greenstar Recycling, and in infrastructural providers of roads through National Toll Roads.

[1] It spun these off into a separate company, Atlas Investments, and focused on wind energy in Ireland and the UK.

[2] In 2008, NTR purchased a controlling stake in Wind Capital Group of St. Louis, Missouri, U.S.[3][4] The company exited the U.S. market in 2015 to "focus on Europe".

[citation needed] NTR is an Irish public limited company.