Who Owns OneOncology?
OneOncology is owned by Cencora Inc., a publicly traded American healthcare company listed on the NYSE (COR). Cencora operates OneOncology as their community oncology services brand, providing comprehensive practice management and clinical support services to independent oncology practices across the United States.
Parent Company
Cencora Inc.
Acquired
2023
Status
Publicly Traded
Headquarters
Nashville, Tennessee, USA
Who Owns OneOncology?
- Parent Company: Cencora Inc.
- Ownership Type: Wholly owned
- Acquisition Year: 2023
- Company Type: Publicly Traded
- Stock Ticker: NYSE: COR
| Brand | Parent Company | Ownership Type |
|---|---|---|
| OneOncology | Cencora Inc. | Wholly owned |
History of OneOncology
- Founded: 2018
- Founders: OneOncology founding team
- Acquired by Cencora Inc.: 2023
OneOncology was founded in 2018 as a physician-led national platform dedicated to supporting independent community oncology practices. The company was created to help independent oncologists compete with larger healthcare systems while maintaining clinical autonomy and practice independence.
Throughout 2018-2022, OneOncology grew rapidly by partnering with independent oncology practices across the United States, providing practice management services, clinical support, and operational expertise. The company developed specialized capabilities in oncology practice management, clinical protocols, and patient support services.
In June 2023, Cencora (then AmerisourceBergen) and TPG completed their acquisition of a majority stake in OneOncology for $2.1 billion. This partnership positioned OneOncology to accelerate growth and expand its platform while maintaining its physician-led culture and commitment to independent oncology practices.
Following the acquisition, OneOncology continued to expand its network of affiliated practices and enhance its service offerings. The company focused on providing comprehensive support to independent oncology practices including practice management, clinical support, technology solutions, and pharmaceutical access.
In December 2025, Cencora announced a definitive agreement to acquire the remaining outstanding equity interests in OneOncology, further extending its solutions offering for community oncology and demonstrating its commitment to the oncology market.
About Cencora Inc.
What does Cencora do?
Cencora distributes pharmaceutical products, including brand-name drugs, generic drugs, and specialty medications, to pharmacies, hospitals, physician offices, and other healthcare providers across the United States and internationally. The company also provides manufacturer services, patient support programs, specialty logistics, and veterinary pharmaceutical distribution through its subsidiaries.
Is Cencora publicly traded?
Yes, Cencora, Inc. trades on the New York Stock Exchange under ticker symbol COR. The company has no controlling shareholder, though Walgreens Boots Alliance holds approximately 15% of shares as the largest single investor.
What is Cencora's annual revenue?
In fiscal year 2024 (ended September 30, 2024), Cencora reported revenue of $294.0 billion, a 12.1% increase from the prior fiscal year. The company is one of the largest companies in the United States by revenue.
Why did AmerisourceBergen change its name to Cencora?
AmerisourceBergen changed its name to Cencora in August 2023 to reflect its evolution from a primarily domestic pharmaceutical distributor into a global healthcare solutions organization. The rebranding followed the 2021 acquisition of Alliance Healthcare, which significantly expanded the company's international operations, and was intended to signal the company's broader capabilities beyond traditional drug distribution.
Who is Cencora's CEO?
Robert P. Mauch became President and CEO of Cencora on October 1, 2024, succeeding Steven H. Collis, who had served as CEO since 2011. Collis transitioned to the role of Executive Chairman.
What is Cencora's role in the opioid settlement?
Cencora, along with McKesson and Cardinal Health, reached a $21 billion settlement with U.S. states and local governments in 2022 to resolve claims that the three distributors failed to adequately monitor suspicious opioid orders. Cencora's share of the settlement is approximately $6.1 billion, to be paid over 18 years.
- Founded: 2001
- Headquarters: Conshohocken, Pennsylvania, USA
- Company Type: Publicly Traded
- Stock: NYSE: COR
Where Is OneOncology Made / Based?
- Headquarters: Nashville, Tennessee, USA
- Manufacturing / Operations: United States
Brands Owned by Cencora Inc.
- AmerisourceBergen - American pharmaceutical distribution brand representing the legacy operations of...
- GoodRx - American healthcare technology platform providing prescription drug price compar...
- Lash Group - Patient support services company providing pharmaceutical patient assistance pro...
- MWI Animal Health - Animal health pharmaceutical and supply distributor providing veterinary medicat...
- Retina Consultants of America - Leading retina specialist management services organization providing practice ma...
- World Courier - Global specialty logistics and transportation company specializing in time-criti...
- Xcenda - Strategic consulting and market access company providing commercialization suppo...
OneOncology Ownership: Pros & Cons
Advantages
- +Physician-led platform maintaining clinical autonomy for independent practices
- +Comprehensive practice management and operational support services
- +Access to Cencora's pharmaceutical distribution and specialty pharmacy expertise
- +Advanced technology platforms for oncology practice management
- +Clinical support and evidence-based protocols for cancer care
- +Significant scale enabling competitive pricing and operational efficiencies
Considerations
- -Dependency on Cencora's supply chain and corporate policies
- -Competition from larger healthcare systems and integrated oncology networks
- -Regulatory compliance requirements for healthcare services and oncology care
- -Pressure on oncology practice margins from healthcare cost containment
- -Limited flexibility in certain operational decisions due to corporate structure
- -Evolving oncology care landscape and treatment innovations
Frequently Asked Questions About OneOncology
Where to Buy
Disclosure: We may earn commission from purchasesCompetitors to OneOncology
These competing brands operate in the same categories and provide similar products or services. Compare key attributes to understand market positioning and competitive landscape.
| Brand | Parent Company | Country | Founded | Market Position | Primary Market | Gender Target |
|---|---|---|---|---|---|---|
| Cardinal Health | USA | 2010 | Mass Market | North America | All Genders | |
| Piramal Pharma | India | 2007 | Mass Market | Global | Male |
Learn More About Competitors

Cardinal Health Specialty Pharmacy
Owned by Cardinal Health
Specialty pharmaceutical distribution and services provider serving specialty pharmacies, hospitals, and healthcare providers with complex medications owned by Cardinal Health.

Piramal Pharma Solutions
Owned by Piramal Pharma Limited
Global contract development and manufacturing organization providing integrated CDMO services across the drug lifecycle for pharmaceutical companies.
Competitive Analysis
Market Positioning: OneOncology competes with 2 brands in the same categories, ranging from mass market to luxury positioning.
Geographic Distribution: Competitors are headquartered across multiple regions, indicating global competition in this market segment.
Brand Heritage: Competitor brands range from established heritage brands to newer market entrants, with founding years spanning several decades.
Cencora Inc. Stock Information
Jobs at Cencora Inc.
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