TORONTO, ONTARIO–(Marketwired – May 17, 2017) –

All amounts in U.S. dollars unless otherwise stated

Onex (TSX:ONEX) announced it will host its annual Investor Day for institutional investors and analysts on June 15, 2017 at 10:00 a.m. ET. The event will include presentations by Onex’ senior management team and will focus on the company’s businesses and outlook.

A live audio webcast and related materials will be available to all interested parties through Onex’ website at www.onex.com. Webcast participants will have the option to submit questions during the live event. For those unable to join the live webcast, a replay will be available on the website shortly after the event.

About Onex

Onex is one of the oldest and most successful private equity firms. Through its Onex Partners and ONCAP private equity funds, Onex acquires and builds high-quality businesses in partnership with talented management teams. At Onex Credit, Onex manages and invests in leveraged loans, collateralized loan obligations and other credit securities. Onex has approximately $25 billion of assets under management, including $6 billion of Onex proprietary capital, in private equity and credit securities. With offices in Toronto, New York, New Jersey and London, Onex invests alongside its fund investors and is the largest limited partner in each of its private equity funds.

Onex’ businesses have assets of $46 billion, generate annual revenues of $31 billion and employ approximately 166,000 people worldwide. Onex shares trade on the Toronto Stock Exchange under the stock symbol ONEX. For more information on Onex, visit its website at www.onex.com. Onex’ 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.