Healthcare Insights
Largest imaging center corporations in the U.S.
The U.S. imaging market is highly fragmented, with independent imaging centers, health systems, and physician-led imaging organizations all playing a role in delivering diagnostic services. As demand for outpatient imaging continues to rise, larger imaging companies are expanding through acquisitions, new site development, and care models focused on improving access and convenience for patients.
Several factors are contributing to this growth, including advances in imaging technology, increased demand for preventive diagnostic screenings, and an aging U.S. population. For organizations supporting the imaging market, the opportunity to support clinical efficiency and patient outcomes has never been greater.
What is an imaging center corporation?
Imaging center corporations are large radiology companies, such as RadNet or Touchstone Medical Imaging, that own and operate networks of outpatient diagnostic imaging centers. These corporations typically grow their footprint through strategic acquisitions, expanding their presence across regions and markets.
As the medical imaging landscape evolves, major players are adapting to stay ahead of the curve. Many are actively investing in new technologies and acquiring additional imaging centers to enhance service offerings, improve patient access, and drive innovation.
Using the Definitive Healthcare ImagingView product, we ranked the top 10 largest imaging center corporations by the number of member centers within their network.
| Rank | Imaging center name | HQ state | # of member imaging centers | Explore dataset |
|---|---|---|---|---|
| 1 | RadNet | CA | 383 | Explore |
| 2 | The US Oncology Network | TX | 141 | Explore |
| 3 | Solis Mammography (FKA Solis Women’s Imaging) | TX | 133 | Explore |
| 4 | RAYUS Radiology (FKA Center for Diagnostic Imaging) | MN | 132 | Explore |
| 5 | SimonMed Imaging | AZ | 123 | Explore |
| 6 | Akumin (FKA Elite Imaging) | FL | 119 | Explore |
| 7 | Touchstone Medical Imaging | TX | 64 | Explore |
| 8 | Envision Radiology | CO | 57 | Explore |
| 9 | Capitol Imaging Services | LA | 56 | Explore |
| 10 | American Health Imaging | GA | 49 | Explore |
Fig. 1 Data is from the Definitive Healthcare ImagingView product. Data is proprietary and accessed in July 2026.
Which medical imaging company owns the most imaging centers?
RadNet ranks as the largest medical imaging company by number of member imaging centers, with 383 locations tracked in ImagingView. Headquartered in California, RadNet operates imaging centers across multiple states, including California, Maryland, New York, Florida, and Delaware.
The U.S. Oncology Network ranks second with 141 member imaging centers, followed by Solis Mammography with 133 locations and RAYUS Radiology with 132. Other companies among the largest imaging networks include SimonMed Imaging, Akumin, Touchstone Medical Imaging, Envision Radiology, Capitol Imaging Services, and American Health Imaging.
Together, the ten largest imaging companies in this analysis represent more than 1,100 member imaging centers, highlighting the growing role of large imaging organizations within an otherwise fragmented U.S. imaging market.
Understanding imaging center consolidation
The outpatient imaging market remains fragmented, but corporate-backed imaging networks continue to expand through acquisitions, new site development, and regional growth strategies. Tracking these organizations provides visibility into how imaging capacity is distributed, where market consolidation is occurring, and which entities represent the largest opportunities for engagement.
Mapping the evolving imaging center landscape
As imaging providers expand beyond individual facilities into broader regional and national networks, facility-level data alone may not provide a complete view of the market. Understanding corporate affiliations and network structures can help organizations identify key stakeholders, evaluate market presence, and assess the reach of imaging organizations across geographies.
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