Onex logo

Onex Employee Directory

Investment ManagementOntario, Canada501-1000 Employees

Onex is an investment management firm that allocates and oversees capital on behalf of its shareholders and a global client base. Founded in 1984, it has a long history of delivering value to its investors. It reports approximately $59.2 billion in assets under management, including $8.7 billion of its own investing capital. The firm maintains offices in Toronto, New York, New Jersey, and London and is listed on the Toronto Stock Exchange under the symbol ONEX.

Its investor base includes public and private pension plans, sovereign wealth funds, insurance companies, family offices, and high-net-worth individuals. Operating in the investment management industry, Onex is based in Toronto.

Find Onex employees' phone numbers or email addresses

Onex Global Highlights

Location
Employees

North America
437

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  • Canada
    317
  • United States Of America
    120

Europe
45

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  • United Kingdom Of Great Britain And Northern Ireland
    25
  • Switzerland
    6
  • Portugal
    3
  • Armenia
    3
  • Spain
    2
  • Georgia
    1
  • France
    1
  • Germany
    1
  • Greece
    1
  • Luxembourg
    1
  • Lithuania
    1

Asia
29

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  • India
    9
  • Pakistan
    6
  • China
    3
  • United Arab Emirates
    2
  • Turkey
    1
  • Russian Federation
    1
  • Saudi Arabia
    1
  • Israel
    1
  • Philippines
    1
  • Sri Lanka
    1
  • Thailand
    1
  • Afghanistan
    1
  • Nepal
    1

Africa
23

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  • Algeria
    14
  • South Africa
    4
  • Egypt
    3
  • Nigeria
    1
  • Ethiopia
    1

South America
6

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  • Uruguay
    2
  • Argentina
    2
  • Brazil
    1
  • Paraguay
    1

Oceania
4

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  • Australia
    4

Onex's Leadership

  • Ceo, Schwartz/Reisman Group at Onex
    L. S.
    Ceo, Schwartz/Reisman Group
  • Chief Human Resources Officer at Onex
    H. H.
    Chief Human Resources Officer
  • Vice President Finance at Onex
    M. N.
    Vice President Finance
  • Vice President Internal Audit at Onex
    A. T.
    Vice President Internal Audit
  • Vp Tax, Schwartz/Reisman Group at Onex
    S. W.
    Vp Tax, Schwartz/Reisman Group
  • Vp - Enterprise Technology at Onex
    C. W.
    Vp - Enterprise Technology
  • Vice President - Taxation at Onex
    R. A.
    Vice President - Taxation
  • President And Chief Executive Officer at Onex
    M. D.
    President And Chief Executive Officer

Onex Employee Metrics

100%
50%
0%
2026
2025
  • Finance
  • Analytics
  • Engineering
  • Product Management
  • Information Technology
  • Other
  • Banking
  • Community & Social Services
  • Business

Contact profiles from Onex

Name
Title
Contact
Location
Last Update
  • Managing Director, Head Of Sustainability at Onex
    J. C.
    Managing Director, Head Of Sustainability
    Canada, Ontario
    Aug 20, 2026
  • Senior Managing Director, Client & Product Solutions at Onex
    E. T.
    Senior Managing Director, Client & Product Solutions
    Canada, Ontario
    Oct 02, 2026
  • Managing Director at Onex
    A. C.
    Managing Director
    Canada, Ontario
    Oct 02, 2026
  • Managing Director at Onex
    P. W. E.
    Managing Director
    United Kingdom
    Oct 02, 2026
  • Managing Director, General Counsel & Chief Compliance Officer - Private Equity at Onex
    M. M.
    Managing Director, General Counsel & Chief Compliance Officer - Private Equity
    Canada, Ontario
    Jul 21, 2026
  • Managing Director, Pe Fund Operations at Onex
    S. V.
    Managing Director, Pe Fund Operations
    Canada, Ontario
    Sep 07, 2026
  • Managing Director, Client & Product Solutions: Europe & Middle East at Onex
    I. A.
    Managing Director, Client & Product Solutions: Europe & Middle East
    United Kingdom, England
    Oct 02, 2026
  • Managing Director - Shareholder Relations And Communications at Onex
    J. H.
    Managing Director - Shareholder Relations And Communications
    Canada, Ontario
    Sep 23, 2026
  • Managing Director, Finance at Onex
    M. M.
    Managing Director, Finance
    Canada, Ontario
    Jul 21, 2026
  • Ceo, Schwartz/Reisman Group at Onex
    L. S.
    Ceo, Schwartz/Reisman Group
    Canada, Ontario
    Oct 07, 2026

Frequently Asked Questions

What is Onex known for?

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Onex was founded in 1984 and operates in the Investment Management industry. You can contact Onex's main corporate office by phone at . Explore Onex's company overview page for more information.

What is Onex's most common email format?

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Onex employees' email format typically follows the pattern of FLast@onex.com. Trying to find reliable and up-to-date employee contact data? Find more Onex email formats with LeadIQ.

How many employees does Onex have currently?

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Onex has approximately 823 employees as of October 2026. These team members are located across 6 continents, including North America, Europe and Asia.

Who are Onex's key employees and leadership?

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As of October 2026, Onex's key employees include:

  • Ceo, Schwartz/Reisman Group: L. S.
  • Chief Human Resources Officer: H. H.
  • Vice President Finance: M. N.
  • Vice President Internal Audit: A. T.
  • Vp Tax, Schwartz/Reisman Group: S. W.

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