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Ryota Sekine

Venture Partner at A-N Partners

United States

Overview 

Ryota Sekine is an entrepreneur and angel investor based in the United States with a background in start-ups and business development. He has held key roles such as CEO of a startup and Venture Partner at A-N Partners, while also co-founding successful ventures like Cubii and contributing as an Operations & Product Advisor, COO, and Product Manager. Sekine's career highlights include co-founding Cubii, which was later acquired, and having a diverse investment portfolio across sectors like Supply Chain Tech, DeepTech, and Web3/Blockchain, focusing on supporting underrepresented founders and promoting social innovation.

Work Experience 

Startup

  • CEO

    2025 - Current

    Conducting startup experiments, exploring insights and inflections

Sekine Ventures

  • Investor

    2021

    I back fellow founders creating a radically different future. I enjoy supporting founders as a co-conspirator, providing second opinions and resources based on my own founder experience. Core investment areas include deep tech (space tech, material science, quantum computing, biotech, clean tech), devOps, cybersecurity, artificial intelligence, fintech and healthcare from pre-seed to Series A. Investor and advisor with 40+ teams (e.g. Mesh Finance, Webacy, Interlune, Healthie, Kabata, EDEN, Pie, Illusion of Life, Fillow, Carry, Orange Cap Games, Uncommon Therapeutics, Primary MD, Sharp Vision) and 5+ VC funds (e.g. Formation VC, A-N Partners, Spencer Ventures).

AP

A-N Partners

  • Partner

    2024

    VC firm investing in extraordinary founders with Japan ties inside and outside Japan from pre-seed to Series A.

LV

Lofty Ventures

  • EIR

    2022 - 2024

    We are founder-focused, Chicago-focused, & love being first-check or as early as possible. Our founders become part of the Lofty Family and we are committed to helping them grow holistically as both people and entrepreneurs throughout their careers. Invested in 80+ teams / 150+ founders to date.

We help passionate founders, disruptive startups and innovative organizations change the world.

loftyventures.com
C

Cubii

  • Advisor

    2020 - 2021

    Continued advising the company after US $100 million acquisition.

  • Cofounder

    2012 - 2020

    Cubii believes in providing fitness that fits. We want to make wellness easily accessible to people from all walks of life.

SH

Sears Holdings Corporation

  • E-Commerce Manager

    2014 - 2014

    Experience with an iconic brand. Learned the workings of an established corporation.

BM

Ben May Department for Cancer Research

  • Research Assistant

    2010 - 2011

Education 

Articles About Ryota

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