Why Kosto Failed: Unit Economics | Startup Autopsy
€10M
Raised
2y
Time to collapse
€40M
Peak valuation
// startup autopsy
Kosto
Andreessen Horowitz-backed B2B wholesale marketplace for Mexican small retailers — shut in 2023 after failing to displace the informal tianguis supply chain.
Unexpected shutdown within weeks of a trigger · Fatal mistake: Informal tianguis supply chain competed on relationship credit that a VC-backed platform with working capital constraints could not match
Evaluating only Kosto’s profile at its peak — without knowing the outcome — the model ranked Unit economics as the #1 likely cause. That’s exactly how it died.
Key Events Timeline
FOUNDING
Kosto founded
DOWN ROUND
Down round or bridge financing
SHUTDOWN
Sudden Collapse: Kosto ceases operations
Full Analysis
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Documented cause
Kosto was a B2B digital marketplace that connected Mexican micro-retailers — tiendas de abarrotería, misceláneas, and food-service operators — with wholesale suppliers. The platform aimed to replace the traditional informal supply chains (tianguis and mercados de abastos) with a transparent, digital ordering and delivery model. Backed by Andreessen Horowitz's LatAm fund and founded in 2021, Kosto raised early capital on the thesis that Mexico's 1.5 million small retailers were underserved by modern distribution. The business faced deep structural resistance: informal suppliers offered flexible credit, personal relationships, and no minimum orders. Kosto required digital adoption from a segment with low smartphone penetration and deep distrust of formal systems. The cost of acquiring and retaining small merchants was higher than the gross margin per order, and the company shut operations in 2023.
Lesson
“Informal market supply chains are efficient in ways that don't show up in databases — digitising them requires solving the trust and credit problem first, not the ordering interface.”
Failure anatomy
Collapse type
Sudden Collapse
⚡ HIGH
Hype cycle
peak of inflated expectations
Moat type
Network Effects
Fatal mistake
Informal tianguis supply chain competed on relationship credit that a VC-backed platform with working capital constraints could not match