Walmart made a strategic investment in the vertical farm operator through a round led by existing investor SoftBank Vision Fund 1, pushing its total funding past $940m.

US-based urban farm service Plenty Unlimited has raised $400m in series E funding from investors including big-box retailer Walmart and internet and telecommunications firm SoftBank, as the latter continues to invest in the space.

Investment firms One Madison Group and JS Capital co-led the round, which represents the largest yet for an indoor farming technology company, according to Plenty, while SoftBank took part through its Vision Fund 1.

Plenty is working with a network of indoor vertical farms to produce…

Edison Fu

Edison Fu is a reporter and Asia liaison at Global Corporate Venturing.