ONEX portfolio
ONEX (Private equity) is known to hold 50 companies, 6 of them startups. 21 of them are hiring now, with 3,195 open roles. Most of them work in Insurance Brokers & Agencies, Plastics & Polymers, Property & Casualty Insurance.
Companies ONEX has invested in
Open roles at ONEX portfolio companies
Project Manager, Information TechnologyRyan · this month
Customer Success ManagerSedgwick · this month
Data Analyst InternSedgwick · this month
Workers Compensation Claims Team Lead | NY Jurisdiction experience | NY LicensingSedgwick · this month
Senior Enterprise ArchitectSpirit AeroSystems · this month
Tooling TechnicianSpirit AeroSystems · this month
Associate Procurement AgentSpirit AeroSystems · this month
Corporate Accounting SupervisorIscmga · this month
Spirit Defense - Experienced Data ScientistSpirit AeroSystems · this month
Workers Compensation Claims Examiner | Reno, NVSedgwick · this month
Workers Compensation Claims Team Lead | Reno, NVSedgwick · this month
Sr Administrative AssistantSedgwick · this month
Motor Team LeaderSedgwick · this month
Commercial Claims HandlerSedgwick · this month
Construction Defect AdjusterSedgwick · this month
Senior Manager, PMO (P&C Insurance)Iscmga · this month
Project Managed Claims Coordinator - Agricultural Subsidence SpecialistSedgwick · this month
Claims Technician - MidlandsSedgwick · this month
Store Manager - New Castle, PASave A Lot · this month
AME Avionics - CalgaryWestJet · this month
Focus
Similar investors
their companies share markets and countries
Questions about ONEX
How many companies has ONEX invested in?
ONEX is known to hold 50 companies: 6 startups, and 8 exits so far, read from its own portfolio page and the funding rounds that name it.
Is ONEX investing now?
ONEX has no round in the press in 12 months and no new company on its portfolio page in 90 days.
What does ONEX invest in?
The markets of the companies ONEX holds: Insurance Brokers & Agencies (8%), Plastics & Polymers (6%), Property & Casualty Insurance (6%), Care Coordination & Population Health (4%), Health Insurance & Benefits (4%).
Which ONEX portfolio companies are hiring?
21 companies ONEX holds are hiring now, with 3,195 open roles listed on this page.
Who does ONEX invest alongside?
The investors that hold the most companies together with ONEX: SJF Ventures, Stone Point Capital, New Mountain Capital.
How this page is made
A company counts as a holding when the investor’s own portfolio page links to it, a program’s catalog lists it, or a funding round in the press names the investor. The numbers are rebuilt every night; each company shows where it came from and when it was first seen.
Sources: its portfolio page, read Oct 3
ONEX portfolio: 50 known companies. Alion, Oct 29, 2026. https://alion.io/company/onex/portfolio