Onex Corporation

What does Onex Corporation do?
Onex Corporation is a private equity and asset management firm that invests and manages capital on behalf of its shareholders and global institutional clients. The firm operates through Onex Partners for upper middle-market buyouts, ONCAP for smaller middle-market investments, and Onex Credit for private credit strategies. Onex has approximately $55.8 billion in assets under management and has completed over 50 platform acquisitions since inception.

Is Onex Corporation publicly traded?
Yes. Onex Corporation is listed on the Toronto Stock Exchange under the symbol ONEX. The company has been publicly traded since its 1999 IPO. Despite being publicly traded, Onex operates as a private equity firm, generating revenue primarily through management fees and carried interest from its investment funds.

Who founded Onex Corporation?
Onex Corporation was founded in 1984 by Gerald W. Schwartz, a Canadian businessman who previously worked at Bear Stearns in New York. Schwartz established Onex as one of Canada's first private equity firms and continues to serve as Founder and Non-Independent Chairman. Robert Le Blanc currently serves as CEO.

What companies does Onex own?
Onex's current portfolio includes WestJet (Canada's second-largest airline), Convex (specialty insurance), AirSprint (fractional jet ownership), and a significant minority stake in OneDigital (insurance brokerage and financial services), among other investments. The portfolio changes as Onex acquires new platform companies and exits existing investments through sales or public offerings.

How much did Onex pay for WestJet?
Onex Corporation acquired WestJet in December 2019 for approximately CAD $5 billion through its Onex Partners platform. The deal priced WestJet shares at $31 each, a 67 percent premium over the closing price before the offer. It was the largest private equity deal in aviation history at the time. In October 2025, Onex sold a 25 percent minority stake to Delta Air Lines, Korean Air, and Air France-KLM for approximately US $550 million, recouping its equity investment while retaining 75 percent control.

Did Onex try to buy Air Canada?
Yes. In 1999, Onex launched a hostile takeover bid for Air Canada, proposing to merge it with Canadian Airlines. A Quebec Superior Court ruled the bid illegal because Canadian law prohibited any single shareholder from controlling more than 10 percent of Air Canada. Onex withdrew its offer. Air Canada subsequently merged with Canadian Airlines without Onex's involvement. This experience gave Onex deep familiarity with Canadian aviation regulations, which proved valuable in the 2019 WestJet acquisition.

What is Onex's assets under management?
Onex Corporation has approximately $55.8 billion in assets under management as of 2026. Of this total, approximately $9.4 billion represents Onex's own investing capital. The Onex Partners platform alone manages approximately $17 billion. The firm's investors include public and private pension plans, sovereign wealth funds, insurance companies, family offices, and high-net-worth individuals globally.

Onex Corporation was founded in 1984 by Gerald W. Schwartz, a Canadian businessman who previously worked at Bear Stearns in New York before returning to Toronto to establish his own investment firm. Schwartz modeled Onex on the American private equity firms that were emerging in the 1980s, adapting the buyout model to the Canadian market.

In its early years, Onex built a reputation for acquiring undervalued or underperforming businesses and improving their operations. The firm's first major investments spanned industries including manufacturing, food processing, and consumer products. Onex developed a distinctive approach of taking controlling stakes in companies and working closely with management to drive operational improvements, rather than relying primarily on financial engineering.

Onex went public on the Toronto Stock Exchange in 1999, listing under the symbol ONEX. The IPO raised capital that expanded the firm's investment capacity. As a publicly traded private equity firm, Onex offers investors the ability to participate in private equity returns through a publicly listed vehicle, an unusual structure in the Canadian market.

Through the 1990s and 2000s, Onex built a diversified portfolio across multiple sectors. Notable historical investments included Cineplex, one of Canada's largest movie theater chains, and Celestica, an electronics manufacturing services company. The firm also invested in Husky Injection Molding Systems, Impark (parking management), and multiple other businesses across industrials, services, and consumer sectors.

Onex has a complex history with the Canadian airline industry. In 1999, Onex launched a hostile takeover bid for Air Canada, proposing to merge Air Canada with Canadian Airlines. A Quebec Superior Court ruled the buyout illegal because no single shareholder could control more than 10 percent of Air Canada under Canadian ownership restrictions. Onex withdrew its offer, and Air Canada subsequently merged with Canadian Airlines without Onex's involvement. This early attempt gave Onex deep familiarity with the Canadian aviation regulatory environment, which proved valuable two decades later.

The 2008 financial crisis tested Onex's portfolio, as several investments faced significant headwinds. The firm worked through the downturn by restructuring troubled portfolio companies and selectively deploying capital into new opportunities at depressed valuations. Onex emerged from the crisis with its core franchise intact and continued raising new funds through the 2010s.

Onex expanded its credit platform significantly in the 2010s, building Onex Credit into a substantial manager of collateralized loan obligations and direct lending strategies. This diversification beyond pure private equity provided the firm with additional revenue streams from management fees and reduced dependence on the cyclical buyout market.

The WestJet acquisition in December 2019 was one of Onex's largest and most visible investments. Onex Partners led the CAD $5 billion take-private acquisition of Canada's second-largest airline, marking the largest private equity deal in aviation history at the time. The investment gave Onex a controlling stake in a major Canadian aviation company, fulfilling a long-held interest in the sector dating to the 1999 Air Canada bid.

In 2025 and 2026, Onex continued to manage and selectively exit investments. In December 2025, Onex Partners completed a partial exit from OneDigital, an insurance brokerage and financial services firm, selling a majority stake to Stone Point Capital and Canada Pension Plan Investment Board in a transaction valuing OneDigital in excess of US $7 billion. Onex Partners and Onex Corporation received total proceeds of approximately $1.1 billion and $235 million respectively, while retaining a significant minority ownership position.

In 2026, Onex Partners announced the acquisition of AirSprint, Canada's leader in fractional jet ownership, expanding the firm's aviation portfolio beyond WestJet. ONCAP and Griffon Corporation announced the launch of Veritage Brands, a new packaging and industrials platform.

Onex Corporation publishes sustainability information as a publicly traded company on the Toronto Stock Exchange. The firm's sustainability approach focuses on environmental, social, and governance considerations across its investment process and portfolio company operations.

As a private equity firm, Onex's direct environmental footprint is limited compared to its portfolio companies. The most significant environmental impact in Onex's portfolio comes from WestJet, which operates nearly 200 aircraft and consumes substantial volumes of jet fuel. WestJet's sustainability initiatives, including fleet modernization with Boeing 737 MAX aircraft and participation in the Canadian Council for Sustainable Aviation Fuels, represent the primary environmental action within Onex's portfolio.

Onex's governance structure includes independent directors and board oversight of investment decisions. The firm's alignment of interests, with management teams collectively serving as the largest investors across Onex's platforms, creates a built-in incentive for responsible capital allocation and long-term value creation.

Onex does not hold independently verified ESG certifications at the corporate level. The firm's sustainability disclosures follow applicable Toronto Stock Exchange and Canadian securities regulatory requirements, including disclosure of material environmental and social risks.