Company Summary

Company Overviews

Onex invests and manages capital on behalf of its shareholders and clients across the globe. Formed in 1984, we have a long track record of creating value for our clients and shareholders. Our investors include a broad range of global clients, including public and private pension plans, sovereign wealth funds, insurance companies, family offices and high-net-worth individuals. In total, Onex has approximately $59.2 billion in assets under management, of which $8.7 billion is Onex’ own investing capital. With offices in Toronto, New York, New Jersey and London, Onex and its experienced management teams are collectively the largest investors across Onex’ platforms.

Onex is listed on the Toronto Stock Exchange under the symbol ONEX. For more information on Onex, visit its website at www.onex.com. Onex’ security filings can also be accessed at www.sedarplus.ca.

Rating Reviews

Rating is calculated based on 4 reviews and is evolving.

Featured Reviews

Investment Associate
4.1
8 September 2026
Solid Private Equity Experience in Toronto
Pros: The exposure to complex transactions and direct involvement in deal-making were invaluable. I appreciated the opportunity to work closely with senior team members and learn best practices in private equity. The firm's reputation is strong, and the Toronto office has a good collaborative environment.
Cons: The pace can be intense, leading to long hours, which is common in this industry. While there's flexibility, it often means working remotely or late to meet deadlines. Work-life balance can be a challenge during peak deal periods, despite management efforts.
Advice to Management: Continue fostering a culture that supports professional development while exploring ways to better manage workload intensity during busy periods. Recognizing and supporting team well-being is key.
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Senior Associate
4.0
25 September 2026
Intellectually Stimulating Role, Demanding Pace
Pros: The exposure to high-caliber transactions and sophisticated financial strategies is unparalleled in the private equity industry. You work alongside very bright individuals who are dedicated to the firm's success. The learning opportunities are immense, especially in deal structuring and due diligence. It's a fast-paced environment that pushes you to grow professionally.
Cons: While rewarding, the pace can be relentless, impacting work-life balance significantly during active deal periods. Expectations are extremely high, and the pressure to perform is constant. Sometimes, there's a feeling that junior roles are very much in service of senior deal teams, which can limit immediate autonomy.
Advice to Management: Consider implementing clearer guidelines around peak work periods to help manage expectations for work-life balance across different teams. Enhanced mentorship opportunities for associates could also be beneficial.
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Associate
3.9
2 September 2026
Solid Experience in Private Equity
Pros: The biggest pro is the sheer caliber of people and the depth of experience you gain. Working on complex transactions and alongside talented colleagues offers unparalleled learning opportunities. The firm's long history and strong track record provide a good sense of stability and job security, which is a significant advantage in the financial services sector. There's a culture of high performance, and when you succeed, it feels genuinely rewarding. The firm's commitment to its investment
Cons: While there's a strong sense of collective effort on deals, the day-to-day can sometimes feel quite demanding, which impacts work-life balance more than I'd prefer. The pace is relentless, and expectations are always high. Occasionally, communication from senior leadership about broader strategic shifts could be more transparent. While job security is generally good, the intense pressure means it's not a role for everyone, and performance is constantly evaluated.
Advice to Management: Continue fostering the collaborative deal-making environment. Greater transparency on firm-wide initiatives and proactive communication about workload management would be beneficial.
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