Vertical farming, once heralded as a transformative solution for food production, has seen a significant downturn, with numerous startups failing despite substantial venture capital investment over the past decade. These indoor facilities, characterized by stacked trays, hydroponic or aeroponic systems, and LED lighting in controlled environments, promised abundant, cleaner produce with a reduced environmental footprint.

Proponents initially envisioned a climate-friendly agricultural model that would use 95% less water than traditional farms, eliminate pesticides, and cut transportation costs by locating operations in urban centers. Silicon Valley invested billions in companies aiming to revolutionize farming in the late 2010s.

However, much of that funding has dissipated. Prominent examples include Bowery Farming, which raised $938 million, and AppHarvest, which secured $792 million, both of which are now out of business. Three years ago, 23 companies signed a manifesto committing to transforming food systems; fewer than 10 remain operational today. AeroFarms, having raised over $300 million, recently announced its largest investor had withdrawn funding and faces potential closure this month.

Industry observers attribute these struggles to several factors. Vertical farms faced immense infrastructure costs for specialized warehouses, lighting, and proprietary software, which proved difficult to recoup given the already thin margins in the agricultural sector. They struggled to compete with the efficiency of established traditional farms. Rising energy costs further eroded their competitive advantages, while higher interest rates tightened the flow of venture capital.

Experts suggest many early vertical farms made "big mistakes with big money," approaching the business like established food giants and targeting large-scale, low-margin crops such as lettuce, a market already well-supplied by traditional agriculture. One founder noted the industry, at its core, involves advanced manufacturing rather than software development.

Some companies have managed to adapt. Plenty, which raised nearly $1 billion, filed for Chapter 11 bankruptcy but emerged with a revised business model. It pivoted from growing lettuce to strawberries, securing a partnership with berry distributor Driscoll’s to target higher-end markets. Vertical Harvest, co-founded in 2010, credits its longevity to making "small mistakes with small money" and focusing on niche markets, selling diverse greens to schools, hospitals, and local grocers, rather than pursuing mass market penetration.

Mike Zelkind, a founder of 80 Acres Farms, one of the larger remaining players, acknowledges his farms are profitable, but the company as a whole is not yet, once administrative costs are considered. He believes vertical farming will not replace conventional methods but will find its niche in growing high-value, perishable produce, potentially integrated into regional grocery distribution centers for supply chain flexibility.

While vertical farms have faced significant headwinds, high-tech greenhouses, which employ similar technologies but leverage natural sunlight and a single-layer growing system, are flourishing. Companies like Gotham Greens highlight the efficiency of greenhouses, noting that one acre can yield as much as 30 acres of field-grown crops.

The long-term viability of vertical farming as a widespread solution remains an open question. Despite the challenges, proponents argue the underlying value proposition for certain produce categories in a fragmented global food system persists.