Throughout our history, Onex has owned a diverse portfolio of operating companies spanning a wide range of industry sectors.
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Acacium Group
Investment Date September 2020 - Present
Acacium (formerly Independent Clinical Services) is a leading specialised staffing, workforce management solutions, and health and social services business operating primarily in Europe and present across four continents globally.
Onex Partners -
BrightSpring Health Services
Investment Date June 2004 - March 2019
During Onex' investment period, BrightSpring Health Services was a leading provider of residential, training, educational and support services for people with disabilities and special needs in the United States.
Onex Partners -
Carestream Health
Investment Date April 2007 - Present
Carestream Health is a worldwide provider of medical imaging systems and healthcare IT solutions, X-ray imaging systems for non-destructive testing, contract manufacturing / tollcoating for precision films and electronics markets.
Onex Partners -
Center for Diagnostic Imaging
Investment Date January 2005 - July 2012
During Onex' investment period, Center for Diagnostic Imaging was a leading provider of diagnostic and therapeutic radiology services in the United States.
Onex Partners -
Emergency Medical Services Corporation
Investment Date February 2005 - May 2011
During Onex' investment period, Emergency Medical Services Corporation was a leading provider of emergency medical services in the United States, serving more than 14 million patients each year.
Onex Partners -
Futuremed Health Care Products
Investment Date February 2004 - January 2006
During Onex' investment period, Futuremed Health Care Products was Canada's leading distributor of medical supplies and equipment to long-term care facilities.
ONCAP -
Genesis Healthcare
Investment Date December 2005 - August 2017
During Onex' investment period, Genesis Healthcare was a leading provider of integrated long-term healthcare services in the United States.
Onex Partners -
Magellan Health Services
Investment Date January 2004 - November 2005
During Onex' investment period, Magellan Health Services was the leading provider of managed behavioural healthcare services in the United States.
Onex Partners -
Newport Healthcare
Investment Date July 2021 - Present
Newport is a leading provider in the United States of evidence-based healing centers for teens and young adults struggling with primary mental health issues.
Onex Partners -
SCP Health
Investment Date July 2015 - Present
SCP Health (formerly Schumacher Clinical Partners) is a leading provider of emergency and hospital medicine physician practice management services in the United States.
Onex Partners
