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Sean Sang Sub Lee

Senior Principal at Prosperity7 Ventures

San Francisco, California

Overview 

Sean Sang Sub Lee is a Senior Principal at Prosperity7 Ventures | Aramco in San Francisco, California. He has notable experience in investment banking, mergers & acquisitions, and venture capital, with key achievements including leading investments in companies like Matcherino and holding board observer roles at SiFive and Lineaje Inc. Lee's career highlights include his role as a Senior Investment Principal at Prosperity7 Ventures, where he focuses on Compute/Silicon, Connectivity, and Networking, and serves as the Fintech Lead. Additionally, his investment track record includes leading investments in companies such as Arrcus, Inc. (Series D) and Hammerspace (Series A).

Work Experience 

  • Senior Investment Principal (Compute/Silicon, Connectivity, and Networking | Fintech Lead)

    2024 - Current

  • Investment Principal

    2022 - 2024

  • Board Observer

    2024

SiFive is a platform offering open-source semiconductor technology and software automation.

Raised $365,500,000.00 from Intel Capital, Ibex Investors and Coatue.

  • Lead Investor (Series A) and Board Observer

    2024

  • Investor and Board Observer

    2022

  • Lead Investor (Series D)

    2023

Arrcus is a hyper-scale network app that provides software-powered transformations in networks for the interconnected world.

Raised $168,000,000.00 from Liberty Global, General Catalyst, NVIDIA, Lightspeed Venture Partners, Hitachi Ventures, Prosperity7 Ventures and Clear Ventures.

  • Lead Investor (Series A)

    2023

Hammerspace offers an automated data orchestration system to unify and manage data across the edge, data centres, and public cloud.

Raised $56,700,000.00 from ARK Investment Management, Pier 88 Investment Partners, ICU Ventures and Prosperity7 Ventures.

  • Investor

    2023

Together AI is a cloud-based platform designed for constructing open-source generative AI and infrastructure for developing AI models.

Raised $228,500,000.00 from New Enterprise Associates, Soumith Chintala, Lux Capital, Prosperity7 Ventures, Greycroft, Manu Sharma, Kleiner Perkins, Coatue, Factory and Clément Delangue.

  • Investor

    2023

Acceldata ensures data pipeline and analytics quality with observability solutions, enhancing accuracy and reliability for businesses.

Raised $105,560,000.00 from Prosperity7 Ventures, Sanabil, March Capital, Insight Partners and Industry Ventures.

  • Investor

    2023

Nile provides secure connectivity and network independence through a fully automated, wired and wireless LAN deployed entirely as a service

Raised $300,000,000.00 from Liberty Global Ventures, STC Ventures, Sanabil, March Capital, Valor Equity Partners, Aramco Ventures, Prosperity7 Ventures, Geodesic Capital, 8VC and U First Capital.

  • Investor

    2023

Cequence is an API security and bot management company that protects customers’ applications against attacks, targeted abuse, and fraud.

Raised $101,500,000.00 from Hewlett Packard Pathfinder and Prosperity7 Ventures.

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