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Jeff Aiello

Managing Partner at Agellus Capital

Greater St. Louis

Overview 

Jeff Aiello is the Co-Founder and Managing Partner at Agellus Capital, with a background that includes serving in key leadership roles at Thompson Street Capital Partners and various board memberships. He holds an MBA from The Wharton School and has a track record of successful investments in sectors such as Enterprise Infrastructure, Pharmaceuticals, and AI, focusing on Series B stage companies in the Midwest region.

Work Experience 

  • Co-Founder and Managing Partner

    2024 - Current

  • Managing Director

    2020 - 2023

  • Director

    2017 - 2020

  • Vice President

    2016 - 2017

Thompson Street Capital Partners is a private equity firm investing in service, manufacturing and distribution businesses.

  • Board Member

    2020 - 2023

Len The Plumber is a plumbing contractor in the Baltimore-Washington metro area and the surrounding region.

  • Board Member

    2018 - 2023

Savillex expertise in the design, molding and manufacturing of fluoropolymers for a wide range of industries.

  • Board Member

    2021 - 2023

PestCo is a holding company of residential and commercial pest prevention and control services.

  • Board Member

    2019 - 2023

Custom Wheel House is a designer, marketer and distributor of branded automotive aftermarket wheels, performance tires.

  • Board Member

    2017 - 2021

Domaille Engineering provides contract manufacturing services for the aerospace, defense, and telecommunications industries.

  • Board Member

    2018 - 2021

  • Board Member

    2015 - 2018

  • Senior Associate

    2013 - 2014

  • Associate

    2011 - 2013

Audax Group is a alternative investment manager founded in 1999 with offices in Boston, New York, and San Francisco.

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