Kota Washizu, Founder & CEO of Ebriver

We don't advise. We operate.

Ebriver was founded in Tokyo by Kota Washizu. We exist because every global brand we'd worked with kept asking the same question: "Who can actually run our Japan storefronts day-to-day, in Japanese, with our P&L on the line?" The answer is us.

By the numbers

  • ~20Active brands operated
  • ¥474M+GMV under management (FY2025)
  • 100%Japan-based team
  • 5Languages supported (EN/JA/ZH/KO/FR)

Team

  • Kota Washizu portrait

    Kota Washizu

    Founder & CEO

  • Team member 1 (TBD)

    Role TBD

  • Team member 2 (TBD)

    Role TBD

  • Team member 3 (TBD)

    Role TBD

How we hire / how we operate

  • We hire former marketplace operators, not consultants.

    Every operator on this team has owned a P&L for a Rakuten, Yahoo or Amazon JP storefront before. We do not promote from analyst pools.

  • Every account has one accountable lead.

    Not a pod, not a rotating cast. One name on the contract, one name in your Slack.

  • We read the P&L weekly.

    Before the monthly QBR, we share a weekly written P&L summary covering revenue, ad spend, and margin.

  • Long-term partner, not project billing.

    Performance-fee structure tied to incremental GMV. We are aligned with multi-year outcomes, not 90-day decks.

Get a free 45-minute audit of your Japan storefronts.

We'll walk through your current Rakuten/Yahoo/Amazon presence, identify the top three revenue blockers, and tell you whether we're the right partner. No deck. No follow-up nurture sequence.