Sirona Medical Raises $40M to Scale Radiology Platform
Sirona Medical raised $40M Series D led by Avidity Partners to scale its AI-powered radiology platform to address staffing shortages.

The big picture: San Francisco-based Sirona Medical has raised $40 million in Series D financing led by Avidity Partners. The radiology software company will use the capital to expand its cloud-based platform, RadOS, amid rising demand for imaging services and chronic staffing constraints.
Why it matters:
- Market demand: The radiology industry faces a significant staffing crisis, driving urgent demand for technological solutions that can increase capacity and efficiency.
- Growth trajectory: Sirona’s customers are growing capacity faster than other segments of the U.S. radiology market, with the company reporting 2.5x year-over-year revenue growth and 2.7x growth in contracted annual recurring revenue.
- Scalable impact: Sirona has secured contracts to onboard over 1,000 additional radiologists in the next 12 months, demonstrating its potential to alleviate industry bottlenecks and improve patient access.
How it works:
- Integrated platform: Sirona’s RadOS platform combines essential radiology tools, including picture archiving and communication systems (PACS), diagnostic viewing, reporting, worklists, and workflow management, into a unified cloud-based environment.
- AI orchestration: The new funding will support the commercialization of Sirona Cortex, an AI orchestration layer, and further development of its network designed to connect radiologists across various customer organizations.
- Operational efficiency: The platform aims to simplify the technology infrastructure for radiology groups and hospitals, currently covering more than 12 million primary imaging examinations annually under contract.
The catch: The radiology software market is highly competitive, with established vendors and numerous startups vying for market share. While Sirona reports strong growth metrics, sustaining this momentum will require continuous innovation and effective integration into complex, often legacy-driven, healthcare IT systems.
Key Facts
- Company: Sirona Medical
- Amount: $40M
- Round: Series D
- Investors: Avidity Partners (lead), 8VC, GreatPoint Ventures, KLT Holdings
- Founder: Ken Kaufman
- Sector: Radiology Software
- Headquarters: San Francisco, US
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