Mercari

Overview

Mercari is Japan’s largest consumer-to-consumer (C2C) resale marketplace, operating a mobile-first app where individuals buy and sell secondhand goods directly. Founded in Tokyo in February 2013 by serial entrepreneur Shintaro Yamada (with co-founders Ryo Ishizuka and Tommy Tomishima), the company became Japan’s first startup unicorn and, in 2018, the country’s largest IPO of the year. Beyond its dominant home market, Mercari has run a US marketplace since 2014 and operates fintech subsidiaries Merpay (payments) and Mercoin (crypto). It is headquartered in the Roppongi Hills Mori Tower in Minato, Tokyo, and trades on the Tokyo Stock Exchange under ticker 4385.

What they’re known for

Mercari is famous as Japan’s original mobile flea-market app — a frictionless, phone-first way for ordinary people to list secondhand items in minutes and sell them peer-to-peer. It effectively created and then came to dominate Japan’s online C2C resale category, holding over 40% market share and more than 23 million monthly active users domestically. Its signature is simplicity: no listing fees, a flat commission, integrated shipping (with anonymous delivery options), and a built-in wallet (Merpay) that lets sellers spend their proceeds. Culturally, it is credited with mainstreaming the “thrift economy” and reuse culture in Japan.

History

• 2013 — Kouzoh, Inc. (later renamed Mercari, Inc.) founded by Shintaro Yamada in February; the app launches in July for iOS and Android.
• 2014 — Launches its US marketplace to pursue international expansion.
• 2016 — Raises ~$75M (Series D) at a $1B+ valuation, becoming Japan’s first pre-IPO startup unicorn.
• 2017 — Expands into the UK market.
• 2018 — IPOs on the Tokyo Stock Exchange’s Mothers market (June 19), raising ~$1.2B in Japan’s largest IPO of the year; shares surged ~77% on debut to a ~$7.4B market cap.
• 2019 — Launches Merpay mobile payments service.
• 2024 — Restructures US fee model (shifting cost onto buyers), which backfires and triggers user exodus and layoffs.
• 2025 — Reverses course with a split buyer/seller fee model (effective Jan 6); Yamada steps in to directly lead the US business; Mercari US posts its first-ever full-year profit (JPY 900M) for FY ending June 30.
• 2026 — Jeff LeBeau named CEO of Mercari US (effective July 1) as the turnaround continues.

Business model

Mercari is a pure third-party (3P) C2C marketplace — it holds no inventory and simply connects individual buyers and sellers. Its core revenue is a flat selling commission of 10% of the sale price, automatically deducted at checkout, with no listing fees. In the US, following the 2024–2025 fee overhaul, fees are split between buyers and sellers, and buyers pay a buyer-protection fee (around 3.25%) on top of the item price. Additional revenue comes from payment/withdrawal fees, optional seller promotion tools, authentication services, and its adjacent fintech businesses — Merpay (payments/credit) and Mercoin (crypto) — which monetize the balances sellers accumulate in the Mercari wallet.

Why it succeeded

Mercari won by being mobile-first and radically simple at exactly the moment Japanese smartphone adoption took off, letting anyone list an item in a couple of minutes rather than navigating a desktop auction site. It removed the classic C2C frictions: no listing fees, integrated and anonymous shipping, escrow-style buyer protection, and a wallet that recirculates proceeds back into the platform. That combination produced a powerful network effect and durable liquidity — over 40% of Japan’s online C2C market and JPY 1.1 trillion in annual GMV, per its Japan operations and Wikipedia’s overview. Its 2016 unicorn round and record 2018 IPO (covered by TechCrunch and PYMNTS) gave it the capital to entrench that lead. The US business struggled for a decade and stumbled badly on its 2024 fee experiment, but the disciplined 2025 correction — reverting to a split fee model and tightening management — delivered its first-ever full-year US profit (Value Added Resource), showing the model can reach profitability once liquidity and pricing are balanced.

Notable facts

• Japan’s first startup unicorn to reach a $1B+ valuation (2016) and to IPO (2018).
• 2018 IPO raised ~$1.2B and closed up ~77% on day one, reaching a ~$7.4B market cap — the largest Japanese IPO that year.
• Over 23 million monthly active users and 40%+ share of Japan’s online C2C market.
• Annual GMV of roughly JPY 1.1 trillion in Japan (FY2025).
• Flat 10% seller commission with no listing fees on the core marketplace.
• App downloaded well over 100 million times globally; ~30M US downloads since the 2014 US launch.
• Mercari US posted its first-ever full-year profit (JPY 900M) in FY ending June 30, 2025, after a decade of losses.

Links

Title	URL	Type	Note
Mercari, Inc. (official corporate site)	https://about.mercari.com/en/	official-site	Corporate homepage with IR, press, and subsidiaries
Company Information | Mercari, Inc.	https://about.mercari.com/en/about/company/	official-site	Founding date, capital, HQ, subsidiaries (Merpay, Mercoin)
Mercari - Wikipedia	https://en.wikipedia.org/wiki/Mercari	article	Overview of founding, HQ, IPO, business
Marketplace app Mercari nabs $75M to become Japan’s first startup unicorn	https://techcrunch.com/2016/03/01/mercari-unicorn	news	2016 Series D unicorn round
Japan’s P2P Flea Market Mercari Makes IPO Debut At $7.4B	https://www.pymnts.com/news/ipo/2018/japan-p2p-flea-market-mercari-ipo/	news	2018 Tokyo IPO debut and valuation
Japan’s Mercari marketplace app poised for US growth	https://www.retaildive.com/news/japans-mercari-marketplace-app-poised-for-us-growth/526305	news	US expansion strategy post-IPO
Understanding Mercari Fees for Selling (2025)	https://www.exportyourstore.com/blog/mercari-fees-for-selling	article	Breakdown of the 10% commission and other fees
Mercari US Reports First Ever Full Year Profit As Strategy Shift Pays Off	https://www.valueaddedresource.net/mercari-us-first-ever-full-year-profit/	news	US turnaround to first full-year profit (FY2025)
Mercari Names Jeff LeBeau US CEO As Marketplace Turnaround Continues	https://www.valueaddedresource.net/mercari-names-jeff-lebeau-us-ceo/	news	2026 US leadership change