Iron Ox announced that it has closed a $53 million Series C funding round, led by new investor Breakthrough Energy Ventures.

Since its founding in 2015, Iron Ox has raised $98 million in venture funding. Existing investors include Crosslink Capital, R7 Partners, Pathbreaker Ventures, ENIAC Ventures, Amplify Partners, At One Ventures and Y Combinator.

Iron Ox, which launched autonomous farming in 2018, grows produce in proprietary greenhouses designed from the ground up to mitigate the environmental impacts of agriculture