Excess inventory has long been one of the fashion industry’s quietest liabilities. Collections are planned months in advance, but demand is notoriously hard to predict. At the end of every cycle, a massive volume of unsold clothing sits idle in distribution centers. The clothes still hold commercial value, but brands face a tricky balancing act: how to offload the goods without diluting their premium positioning or cannibalizing their primary sales channels.

That structural headache is what sparked the launch of Mercado Único. The B2B platform connects the leftover inventory of major brands with retailers looking to buy authentic, tagged merchandise at a discount. Acting as a digital wholesale distributor for outlet goods, the startup lets brands clear out deadstock, past collections, and returns discreetly and strategically.

A Walled Garden for Premium Inventory

To protect brand integrity, Mercado Único operates as a closed-door ecosystem. Access is restricted to vetted buyers, primarily off-price retailers and curated thrift stores. Before seeing any deals, merchants go through a strict approval process based on the brand’s own criteria—such as store location, target demographic, and overall market positioning. This walled-garden approach lets brands liquidate inventory with full control, avoiding the massive public clearance sales that often damage brand equity.

Now valued at over $6 million (R$ 30 million), the startup stands out for its sustainable approach to growth. Rather than burning cash to buy market share, the company is generating positive cash flow as it expands its roster of partner brands and grows its buyer network.

At the core of the operation is an AI-driven matching engine. The system crunches data on product categories, sizes, styles, and historical sales, pairing that information with the buying habits of registered retailers. By building pre-curated wholesale batches, the platform drastically improves sell-through rates and cuts losses for both sides of the marketplace.

A Multi-Billion Dollar Environmental Toll

The numbers behind the problem are staggering. A 2023 report by the Business of Fashion and McKinsey estimated that the global fashion sector generated between $70 billion and $140 billion in excess inventory—equivalent to up to 5 billion unsold garments. In Brazil alone, industry experts peg the deadstock challenge at roughly $8 billion, making inventory management one of the biggest untapped opportunities for retail tech.

It’s not just a financial drain; it’s an environmental one. The fashion industry accounts for roughly 10% of global carbon emissions, according to the Ellen MacArthur Foundation. When clothes sit in a warehouse or end up discarded unworn, the heavy environmental toll of producing them was essentially incurred for nothing.

From Wine to Wardrobes

Founded in 2024, Mercado Único has already raised $500,000 (R$ 3 million) from backers including Strive (Brazil), Techstars (US), Rockstart (Colombia), and strategic angel investors. The platform currently works with 11 major supplier brands and over 2,000 registered buyers, quickly establishing itself as a go-to clearinghouse for apparel, footwear, and accessories.

The vision comes from founder and CEO Leonardo Mencarini. Armed with a law degree, an MBA from Fundação Getulio Vargas, and executive education from Stanford, Mencarini is a second-time founder who previously built and sold the wine brand Veroni in 2021. After navigating the physical products space, he realized excess inventory was a chronic pain point across multiple sectors—and ripe for a tech-driven fix.

“Remnant inventory still has commercial value; it just hasn’t found the right sales channel. A brand might produce 10,000 units of a dress and sell 8,000. That product was a relative success, but you still have to figure out a strategic destination for the remaining 2,000. What we’ve built is the tech infrastructure to route that stock to retailers who have real sales potential, all while protecting the brand’s image and traditional channels.” — Leonardo Mencarini, CEO & Founder

Armed with rapid growth and playing in a highly fragmented, multibillion-dollar market, Mercado Único is betting that the right mix of tech, data, and operational efficiency can turn stagnant warehouses into a fresh profit center for the fashion industry.

About Mercado Único

Mercado Único is a B2B platform that connects apparel brands to vetted buyers—primarily thrift stores and off-price outlets—looking to purchase authentic, fully tagged past-season inventory at competitive rates.

Operating as a private digital wholesale outlet, the solution allows brands to offload deadstock and off-cycle products strategically, discreetly, and with total control. Buyers are vetted according to the specific rules of each brand, ensuring strict alignment with geographic and demographic positioning.

Using AI, data, and careful curation, Mercado Único builds wholesale batches tailored to individual buyer profiles, accelerating inventory turnover and reducing supply chain waste. In doing so, partner brands turn deadstock into revenue, free up warehouse space, and protect their brand equity without relying on aggressive public markdowns or conflicting with their main sales channels.