Meet Our Team

Onex is led by the firm’s founder and CEO, Gerry Schwartz, and experienced leadership teams at each of our platforms. Onex’ stability results from its ownership culture, rigorous recruiting standards and highly collegial environment.

  • Jessica Brennan
    Jessica Brennan
    Managing Director, Head of Client and Product Solutions
    Jessica Brennan
    Jessica Brennan
    Managing Director, Head of Client and Product Solutions
    Location New York
    Joined Onex 2020

    Jessica leads Onex’ global fundraising and investor relations efforts and manages the Client and Product Solutions team. She leads the institutional client team, marketing and project management function and Onex’ distribution partnerships. Jessica also works on new product development, customized client solutions and firm communications.

    Jessica is a member of The Wharton Graduate School Executive Board. She also serves on the executive committee of the Harvard Kennedy School’s Women and Public Policy leadership board and the Dean’s Advisory Board of the college of Literature, Science and Arts at the University of Michigan.

    Prior to joining Onex, Jessica was a Partner and Managing Director in Investor Relations at The Carlyle Group. Prior to joining Carlyle in 2011, she was a Managing Director in the Private Fund Group at Credit Suisse, joining Donaldson, Lufkin & Jenrette in 1999.

    Jessica holds a B.A. from the University of Michigan and an M.B.A from the Wharton School at the University of Pennsylvania.

  • Emma Thompson
    Emma Thompson
    Managing Director, Client and Product Solutions
    Emma Thompson
    Emma Thompson
    Managing Director, Client and Product Solutions
    Location Toronto
    Joined Onex 2008

    Emma focuses on fundraising efforts across the Onex platforms and its efforts in developing new products across various alternative asset classes.

    Prior to joining Onex, Emma spent 13 years with Fairmont Raffles Hotels International and its predecessor companies, where she led the company's investor relations efforts.

    Emma holds a Bachelor of Commerce in Economics from McGill University.

  • Tate Abols
    Tate Abols
    Managing Director, Client and Product Solutions
    Tate Abols
    Tate Abols
    Managing Director, Client and Product Solutions
    Location Toronto
    Joined Onex 2006

    Tate focuses on new product and asset class development across the Onex platform, including Onex’ acquisition of Gluskin Sheff.

    Prior to joining the Client and Product Solutions group, Tate spent over a decade as an investment professional with Onex Partners. Tate also spent a year at an Onex owned company, Sitel Worldwide, in a senior management role, working closely with the CEO to execute the company's strategic plan.

    Prior to joining Onex, Tate worked in the M&A Group at RBC Capital Markets.

    Tate holds an Honours Business Administration degree (with Distinction) from the Ivey School of Business, University of Western Ontario, and a B.A. in Philosophy from Huron University College, University of Western Ontario.

  • Scott O’Callaghan
    Scott O’Callaghan
    Managing Director, Client and Product Solutions
    Scott O’Callaghan
    Scott O’Callaghan
    Managing Director, Client and Product Solutions
    Location New Jersey
    Joined Onex 2019

    Scott focuses on Onex Credit’s fundraising efforts.

    Scott has 33 years of experience in the leveraged credit markets, including business development roles for alternative credit investment firms. Prior to joining Onex Credit, Scott was a Partner and managed business development for Rotation Capital Management and MidOcean Credit Partners. Previously, he was Global Head of Leverage Finance Sales at Bank of America, and held various positions at Deutsche Bank, Bankers Trust, Drexel Burnham Lambert and Manufacturers Hanover Trust.

    Scott earned his B.A. from Brown University.

  • Elizabeth Samuels
    Elizabeth Samuels
    Principal, Client and Product Solutions
    Elizabeth Samuels
    Elizabeth Samuels
    Principal, Client and Product Solutions
    Location Toronto
    Joined Onex 2016

    Elizabeth focuses on the company’s fundraising and investor relations efforts across the Onex platforms.

    Prior to joining Onex, Elizabeth was a Vice President in the Institutional Client Group at Neuberger Berman in New York where she was focused on middle market business development in the Northeast U.S. Prior to that, Elizabeth worked at CBRE Caledon Capital where she was first involved in the full investment process for private equity and infrastructure transactions and later dedicated to the firm’s business development initiatives.

    Elizabeth holds a Bachelor of Business Management (with distinction) from Dalhousie University.

  • Claire Glossop Irani
    Claire Glossop Irani
    Director, Client and Product Solutions
    Claire Glossop Irani
    Claire Glossop Irani
    Director, Client and Product Solutions
    Location Toronto
    Joined Onex 2018

    Claire focuses on the company’s fundraising and investor relations efforts for Onex Partners and ONCAP.

    Prior to joining the Client and Product Solutions group, Claire was an investment professional with Onex Partners where she evaluated and conducted due diligence on new investment opportunities. Previously, Claire worked as a strategy consultant at Monitor Deloitte in Toronto and Dubai.

    Claire holds an M.B.A., Finance (with Honours) from the Wharton School at the University of Pennsylvania; an MSc. (with Merit) from the London School of Economics and Political Science; and a B.A. (with High Distinction) from Trinity College at the University of Toronto.

  • Madison Kramer
    Madison Kramer
    Director, Client and Product Solutions
    Madison Kramer
    Madison Kramer
    Director, Client and Product Solutions
    Location New York
    Joined Onex 2020

    Madison focuses on the company’s fundraising and investor relations efforts for Onex Credit.

    Prior to joining Onex, Madison was a Product Specialist at Golub Capital where she focused on due diligence, content creation and messaging.

    Madison holds a B.A. from Cornell University.

  • Ashley MacDonald
    Ashley MacDonald
    Senior Associate, Client and Product Solutions
    Ashley MacDonald
    Ashley MacDonald
    Senior Associate, Client and Product Solutions
    Location Toronto
    Joined Onex 2019

    Ashley focuses on the company’s fundraising and investor relations efforts across the Onex platforms.

    Prior to joining Onex, Ashley worked in the Investment Banking division at Scotiabank in Toronto. Prior to that, she worked at Deloitte in the Assurance and Advisory practice where she covered financial institutions.

    Ashley is a CPA, CA and holds a Bachelor of Commerce degree from Dalhousie University.

  • Mark Tullio
    Mark Tullio
    Associate, Client and Product Solutions
    Mark Tullio
    Mark Tullio
    Associate, Client and Product Solutions
    Location Toronto
    Joined Onex 2019

    Mark focuses on the company’s fundraising and investor relations efforts across the Onex platforms.

    Prior to joining Onex, Mark worked in the financial sponsors group at TD Securities in Toronto.

    Mark holds an Honours Bachelor of Business Administration degree (with Distinction) from the Schulich School of Business at York University.

  • Maximillian C. Garcia III
    Maximillian C. Garcia III
    Analyst, Client and Product Solutions
    Maximillian C. Garcia III
    Maximillian C. Garcia III
    Analyst, Client and Product Solutions
    Location New York
    Joined Onex 2020

    Maximillian focuses on the company’s fundraising and investor relations efforts across the Onex platforms.

    Prior to joining Onex, Maximillian worked as an ESPN Financial Analyst at the Walt Disney Company. Prior to that, he gained experience in Asset Management and Real Estate Law.

    Maximillian holds a Bachelor of Business Administration and Performing Arts degree (with High Distinction) from the Ross School of Business at the University of Michigan.

  • Tyler Grosz
    Tyler Grosz
    Analyst, Client and Product Solutions
    Tyler Grosz
    Tyler Grosz
    Analyst, Client and Product Solutions
    Location New York
    Joined Onex 2020

    Tyler focuses on the company’s fundraising and investor relations efforts across the Onex platforms.

    Prior to joining Onex, Tyler held two seasonal positions at Merrill Lynch Wealth Management.

    Tyler holds a B.A. in Economics from the University of Michigan.