Onex 2007 Results

Onex makes private equity investments through the Onex Partners and ONCAP families of funds. Onex also manages alternative asset platforms focused on Real Estate and Distressed Credit. Through its Funds, Onex generates annual management fee income from third parties and is also entitled to a carried interest on $4.4 billion of that capital. In addition, Onex invests its own $4.1 billion of capital in both direct investments and as a Limited Partner in its Funds. Onex' businesses generate annual revenues of $33 billion, have assets of $38 billion and employ 237,000 people worldwide. Onex shares trade on the Toronto Stock Exchange under the stock symbol OCX. For more information on Onex, visit its website at www.onex.com . The company's security filings can also be accessed at www.sedar.com .

This news release may contain forward-looking statements that are based on management's current expectations and are subject to known and unknown uncertainties and risks, which could cause actual results to differ materially from those contemplated or implied by such forward-looking statements. Onex is under no obligation to update any forward-looking statements contained herein should material facts change due to new information, future events or otherwise.

At 4:30 p.m. today, Onex will webcast a live conference call to review the Company's Fiscal 2007 Results in listen-only mode on its website, www.onex.com .