Onex

General contacts
Investor type

Fund of funds / PE / Debt fund

Founded

1984

AUM

$56 000 M

Location

Toronto, Ontario, Canada

Investment Ticket

$50-100 m

Investment Stage

Series B Late Stage (Series C+)

Region of investment

North America Europe
Investor profile last updated: 16 August, 2026

Profile

Onex is an alternative asset manager based in Toronto, Canada, founded in 1984 by Gerald W. Schwartz. The firm manages capital on behalf of its shareholders and institutional investors, offering a range of private equity, credit, and wealth management strategies. Onex is known for its entrepreneurial culture and enduring partnerships, with a team of 114 investment professionals across offices in Toronto, New York, New Jersey, and London.

Onex invests across various sectors including business services, consumer services, software, industrials, transportation, financial services, and healthcare. The firm focuses on private equity and credit investments, with a historical average of 2.5x gross multiple of capital invested and a 27% gross IRR. Onex manages $56 billion in assets, including $43 billion of fee-generating AUM. The firm is active in North America and Europe, providing customized capital solutions.

Notable investments by Onex include Wayside Publishing - educational services, Farsound Aviation - distributors/wholesale, and Convex Insurance - specialty insurance. These investments reflect Onex's commitment to building value and wealth for its investors and partners.

Industry

LegalTech HealthTech TravelTech Aerospace Business Services (B2B) Construction Consumer Services (B2C) Financial Services Healthcare Services Industrial Marketing and Advertising Media and Entertainment Other Retail Software Transportation Technology Automotive Consumer Products Education Fintech SaaS

Onex Funds

Name Type
Questionare
Industry
Questionare
Stage
Questionare
Region 		Size AUM Launch date
Onex Partners Opportunities Fund
Private Equity (PE)
Aerospace
Automotive
Consumer Products
Consumer Services (B2C)
Education
Financial Services
Fintech
Healthcare Services
SaaS
Software
Transportation
Series B
Late Stage (Series C+)
North America
Europe
$5-10 m
$735 M
May 2024
Onex Partners I
Private Equity (PE)
Business Services (B2B)
Consumer Products
Consumer Services (B2C)
Financial Services
Fintech
Healthcare Services
Industrial
Series B
Late Stage (Series C+)
North America
Europe
$5-10 m
$3000 M
June 2003
Onex Partners II
Private Equity (PE)
Business Services (B2B)
Consumer Products
Consumer Services (B2C)
Financial Services
Fintech
Healthcare Services
Industrial
Series B
Late Stage (Series C+)
North America
Europe
$5-10 m
$4300 M
November 2006
Onex Partners V
Private Equity (PE)
Business Services (B2B)
Consumer Products
Consumer Services (B2C)
Financial Services
Fintech
Healthcare Services
Industrial
Series B
Late Stage (Series C+)
North America
Europe
$5-10 m
$7000 M
November 2017

Contacts

Name
Title
Email
Social Networks
avatar
Adam Shantz Managing Partner, Co-Head, ONCAP
Managing Partner, Co-Head, ONCAP
a•••@•••
avatar
Stephen Marshall Managing Partner, Co-Head, ONCAP
Managing Partner, Co-Head, ONCAP
s•••@•••
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avatar
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LrbFYk50WscVlRTa
[email protected]
linkedin twitter
avatar
LrbFYk50WscVlRTa LrbFYk50WscVlRTa
LrbFYk50WscVlRTa
[email protected]
linkedin twitter
avatar
LrbFYk50WscVlRTa LrbFYk50WscVlRTa
LrbFYk50WscVlRTa
[email protected]
linkedin twitter
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FAQs about Onex

Onex is a private equity firm that also operates as a fund of funds and debt fund. It backs companies at Series B and Late Stage (Series C+), writing tickets of $50-100 m.
Onex is located in Toronto, Ontario, Canada.
Onex was founded in 1984.
Onex invests in companies and startups in LegalTech, HealthTech, TravelTech, Aerospace, Business Services (B2B), Construction, Consumer Services (B2C), Financial Services, Healthcare Services, Industrial, Marketing and Advertising, Media and Entertainment, Other, Retail, Software, Transportation, Technology, Automotive, Consumer Products, Education, Fintech, SaaS.
Onex invests in companies and startups in North America, Europe.
Onex invests in companies and startups at Series B, Late Stage (Series C+).
Onex usually invests $50-100 m on average.
Onex has around $56 000m assets under management.
Onex last fund was created/launched in 2024-05-24
Onex can be reached through its website onex.com and its LinkedIn page. Its general enquiries address is [email protected]. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Onex — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
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Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 16 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.