Oishii’s Hiroki Koga on crossing vertical farming’s brutal unit-economics chasm

The Japanese-born founder of indoor strawberry grower Oishii explains how disciplined focus and patient capital secured a $150M Series C while rivals collapsed.

Hiroki Koga, founder and CEO of Japan-rooted Oishii, told AgFunderNews in May 2026 that the company had “crossed that chasm” of unit economics that sank much of the vertical-farming sector. The first close of a $150 million Series C brought Oishii’s total funding to roughly $370 million.

Koga attributes survival to discipline rather than speed. He described “a very strategic decision to focus on premium strawberries,” deliberately avoiding the leafy-greens commodity trap that bankrupted competitors, while proving out unit economics before chasing revenue.

The model fuses robotics and automation with centuries-old Japanese farming techniques, strengthened by the 2025 acquisition of Tortuga AgTech’s harvesting robotics.

For investors, his framing of deeptech agriculture is notable: “patient capital remains critical for the category.” New Series C funds will expand production capacity and deepen robotics integration.

Sources: Source 1

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