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One Madison Group

Investment firm that co-led Anello Photonics' Series B and participated in its Series B-2 round.

One Madison Group is a New York-based permanent-capital investment firm, founded in 2016 by Omar Asali. In 2024 it combined with Jonathan Soros and Salil Seshadri's JS Capital, with all three now co-leading the firm as partners. It deploys long-duration, flexible capital across public and private markets — acquiring controlling or significant ownership positions in cash-generative companies, alongside public-equities investments, private transactions, and minority co-investments — rather than running a traditional fixed-life VC fund. Its four-person Advisory Board includes Brad Gerstner (Altimeter), Ross Laser (Magnetar Capital), Narv Narvekar (Harvard Management Company), and Ravi Yadav (Newlight Partners).

Overview

Firm
One Madison Group
Headquarters
New York, NY
Founded
2016
AUM
Stages
Thesis
Long-duration permanent capital across public and private markets, targeting controlling or significant positions in cash-generative companies rather than fixed-life fund returns.

Portfolio companies1

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Sources & citations3

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  1. 1

    One Madison Group is a New York-based permanent-capital investment firm founded in 2016 by Omar Asali, which combined with JS Capital in 2024.

    One Madison Group: About / Team
    Verified2026-08-08
  2. 2

    One Madison Group co-led Anello Photonics's Series B and returned in its Series B-2 round.

    PR Newswire: ANELLO Photonics Secures Series B Funding to Propel the Future of Inertial Navigation for Autonomous Applications
    Verified2024-11-01
  3. 3

    One Madison Group's Advisory Board includes Brad Gerstner (Founder/CEO of Altimeter), Ross Laser (Co-founder of Magnetar Capital), Narv Narvekar (CEO of Harvard Management Company), and Ravi Yadav (Managing Partner of Newlight Partners).

    One Madison Group: Advisory Board
    Verified2026-08-08