What does Onex invest in?
Onex invests most often at Venture (100% of the rounds on record), in sectors such as Electronics, Mobile and Impact Investing.

Canada · Investor
Filed with the SEC to raise a fund in Nov 2026, closing $47M. Last cheque observed May 2015.
Private equityQuietNew fund $47M, Nov 2026
Follow Onex and see its new cheques in your feed. Start following
5 rounds on record
Mostly Venture: 100% of its rounds
Sole investor in 5 rounds, median $83M
We manage and invest capital on behalf of our shareholders and institutional investors.From their own website
Every round we can evidence, newest first5 appearances
1 round
1 round
3 rounds
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
Named by the firm itself, on a filing, its Form ADV or its company registration24 named
We also hold 65 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
From the firm's own filings with the SEC, which it must file accurately by law
Funds on its Form ADV
76 private funds, $39B in gross assets · filed Mar 2024
Securitised assets 34Private equity 31Hedge 8
And 66 more on the filing.
Who backs their funds
The institutions that put money into its funds, which the firm then invests in companies.Source: the pension's own report, latest Mar 2026.
| Fund | Vintage | Committed |
|---|---|---|
| Onex Partners V | 2019 | $250M |
| Onex Partners IV | 2014 | $200M |
| Onex Partners III | 2008 | $175M |
| Onex Partners II | 2006 | $150M |
| Onex Partners I | 2004 | $100M |
| Fund | Vintage | Committed |
|---|---|---|
| Onex Partners V-B | 2018 | $456M |
| Onex Partners IV | 2014 | $261M |
Acquisitions by the firm itself
Onex invests most often at Venture (100% of the rounds on record), in sectors such as Electronics, Mobile and Impact Investing.
5 investments on record, 0 of them in the last 12 months. The most recent was in May 2015.
The median round it joins is $83M.
Rarely, if at all: none of its 5 investments on record names it as the lead.
Most of the companies it backs are in the United States (80%) and France (20%).
No investments in the last 12 months; the latest was in May 2015.
Onex is a private equity firm based in Toronto, Canada.
About $53B, as regulatory assets under management, 3 advisers added together (Oct 2026).
Find the investors who back rounds like yours, and keep every conversation on one fundraising board.
Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it