JD

James Detweiler

Deal Partner at Felicis

San Francisco, California

Overview 

James Detweiler is a Deal Partner at Felicis in San Francisco, California, with a background in venture investment and strategic planning. He has invested in various companies and sectors, specializing in Generative Tech/AI and ClimateTech/CleanTech, and has held roles at notable firms including Flower Labs and Zetta Venture Partners.

Work Experience 

  • Partner

    2022 - Current

Felicis invests in seed through Series C stage companies across multiple sectors, industries, and frontier tech.

  • Investor

    2025

  • Investor, Observer

    2024

Mercor is an AI-based hiring platform designed to improves the recruitment process for both job seekers and companies.

Raised $33,600,000.00 from Chris Re, Adam D’Angelo, General Catalyst, Jack Dorsey, Larry Summers, Benchmark and Peter Thiel.

  • Investor

    2024

  • Investor, Observer

    2023

  • Investor, Observer

    2023

Highest quality, fastest throughput small language models in your cloud

Raised $28,450,000.00 from Felicis, Anthony Goldbloom, Yi Wang, Greylock, Ben Hamner, Factory, Varun Badhwar, Remi El-Ouazzane, Zoubin Gharamani and Sancus Ventures.

  • Investor

    2025

  • Investor, Observer

    2024

  • Investor, Observer

    2024

  • Investor, Observer

    2023

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