Sirona Medical

What Sirona Medical does

Sirona Medical, Inc. is a San Francisco-based, venture-backed private company founded in 2018 that builds RadOS, a cloud-native, multi-tenant radiology operating system deployed on AWS and delivered through any Chromium browser without downloads or installs. RadOS unifies the diagnostic worklist, viewer, reporter, PACS archive, and AI into a single workspace, and is differentiated by a patented pixel-to-report framework, a patented radiology study-organization ontology, and a proprietary radiology-specific LLM (SironaLex) that drives Auto-Impressions, Quality Assist, Focus Mode, and Priors Summary. Embedded agentic AI translates speech into multi-step system actions across modalities, and the Amplify SDK exposes an open developer ecosystem where third-party AI vendors (RevealDX, Koios, Riverain) integrate and distribute through Sirona as reseller.

The commercial portfolio is organized as a platform-plus-modules subscription SaaS business: Sirona Unify is the flagship all-in-one bundle (deployable as full PACS replacement or overlay), Sirona Reporting is a standalone pixel-powered reporting module managed as a regulated medical device, and Sirona Business Continuity is an always-on cloud failover and archive overlay. Pricing is quote-based and contractually tied to multi-year enterprise subscriptions, supplemented by AI reseller/marketplace commissions. Customers include US hospitals and health systems, independent private radiology practices, and large teleradiology networks — notably Radiology Associates of North Texas (RANT, 280+ radiologists, 5M+ studies annually) and, internationally, Everlight Radiology under a five-year partnership covering 350 hospitals and ~800 consultant radiologists across Australia, New Zealand, Ireland, the UK, the UAE, and South Africa. Go-to-market is sales-led and enterprise-oriented, anchored by 'Book A Demo' CTAs, RSNA/SIIM booth presence, gated whitepapers, and a HubSpot-powered demand-gen engine.

Sirona is regulated by the FDA as a medical device, is HIPAA-compliant and SOC 2 Type II-certified, and obtained its first Class II 510(k) clearance in October 2025 for the Sirona Advanced Imaging Suite (PET-CT support). The company has raised $110M+ cumulatively across a $40M Series B (2021, GreatPoint Ventures lead) and a $45M Series C (Nov 2024, Avidity Partners lead), acquired Nines in 2022 for AI assets, and operates with 51–100 employees from San Francisco across markets spanning North America, Europe, the Middle East, Africa, and Oceania.

Name

Sirona Medical

Legal name

Sirona Medical, Inc.

Website

https://sironamedical.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

51–100 employees

Short description

Sirona Medical builds RadOS, a cloud-native radiology operating system that unifies worklist, viewer, reporter, PACS archive, and AI into one browser-delivered platform for hospitals, radiology practices, and teleradiology networks.

Ownership category

akta.pro rank

Product category

Radiology Imaging Software (PACS / RIS / Reporting)

NAICS

Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Health Services (8000)

akta.pro primary industry

Universal Viewers & Enterprise Imaging Access (Zero-footprint/Diagnostic) (HLACALAD)

akta.pro secondary industries

Imaging Workflow Orchestration & Modality Worklist (MWL)/Scheduling (HLACALAE), Radiology Reporting, Dictation & Structured Reporting (HLACALAF), Vendor Neutral Archive (VNA) & Enterprise Imaging Repositories (HLACALAC), AI Orchestration & Imaging Analytics Platforms (Model Management/Triage) (HLACALAG), Imaging Interoperability & Standards Enablement (DICOM/HL7/FHIR/IHE) (HLACALAJ), Imaging Informatics & Workflow (PACS/RIS/VNA) (HLAHABAI)

Keywords

• Radiology workflow software
• Cloud-native PACS
• Radiology operating system
• Medical imaging AI
• Diagnostic reporting platform

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Subscription SaaS - Sirona Unify: Flagship subscription product bundling PACS, diagnostic viewing, reporting, universal worklist, AI (including impression generation), and more. Can be deployed as an overlay to existing tech stacks or as a full PACS replacement; recurring SaaS contract.
2. Subscription SaaS - Sirona Reporting: Next-generation reporting module available as a standalone subscription service, including pixel-to-report, speech-to-action, and SironaLex-powered Auto-Impressions.
3. Subscription SaaS - Sirona Business Continuity: Always-on, fully redundant overlay workflow and archive subscription that provides failover during planned or unplanned downtime of customer PACS/dictation systems.
4. AI Reseller / Marketplace Commission: Sirona serves as an official reseller for third-party AI algorithms (RevealDX, Koios) embedded in the RadOS platform, with one-click deployment to customers; revenue share with AI vendors.

Pricing tiers

Go-to-market motion4 records

Distribution channels4 records

Marketing channels7 records

Core offering

Sirona Medical sells a cloud-native, multi-tenant radiology workflow platform (RadOS) that unifies the universal worklist, diagnostic viewer, structured reporting engine, PACS archive, and embedded AI into a single browser-delivered workspace on AWS, commercialized as the Sirona Unify subscription and complemented by standalone Sirona Reporting and Sirona Business Continuity modules. The platform is sold to hospitals, radiology practices, and teleradiology networks as either a full PACS replacement or an overlay, and includes regulated medical-device components and an FDA 510(k)-cleared Advanced Imaging Suite with PET-CT support.

Product overview

Sirona Medical offers a cloud-native, multi-tenant, AI-powered radiology operating system delivered through a platform-plus-modules architecture. The core platform is RadOS (Radiology Operating System), which unifies worklist, viewer, reporter, PACS archive, and AI into a single browser-based workspace deployed on AWS with 99.99% availability. The flagship commercial offering is Sirona Unify, which packages RadOS for deployment as either a full PACS replacement or an overlay onto existing tech stacks. Alongside Unify, Sirona offers two standalone subscription modules — Sirona Reporting (a pixel-powered, multimodal agentic AI reporting module and the only reporting product managed as a regulated medical device) and Sirona Business Continuity (an always-on cloud failover and archive overlay). The portfolio also includes the FDA 510(k)-cleared Sirona Advanced Imaging Suite (first Class II device, with PET-CT support), the proprietary SironaLex™ radiology-specific LLM, and the Amplify SDK, which powers Sirona's open developer ecosystem by enabling third-party AI partners (including Koios, RevealDX, and Riverain) to embed AI across the workflow with one-click deployment.

Differentiator

Problem solved

Functional benefit

Brands

• RadOS: Sirona's flagship cloud-native radiology operating system unifying worklist, viewer, reporter, PACS archive, and AI into a single platform.
• Sirona Unify
• Sirona Reporting
• Sirona Business Continuity
• Sirona Advanced Imaging Suite
• Amplify SDK
• SironaLex

Products and services

• Sirona Unify Flagship unified radiology workflow subscription bundling PACS, diagnostic viewing, structured reporting, universal worklist, AI (including impression generation), and more; can be deployed as an overlay onto existing PACS/RIS systems or as a full PACS replacement. Sold to hospitals, radiology practices, and teleradiology networks.
• Sirona Reporting Standalone pixel-powered reporting subscription with multimodal, agentic AI; includes speech-to-action, voice commands, auto-impressions, structured templates, and migration tooling from Nuance PowerScribe and M*Modal Fluency. Marketed as the only reporting product managed as a regulated medical device. Sold to radiology practices and hospitals.
• Sirona Business Continuity Cloud-native business-continuity SaaS combining diagnostic viewing, reporting, PACS, and worklist into an always-on overlay; provides instant failover, zero data loss, and real-time monitoring during planned or unplanned downtime of on-prem PACS/dictation. Sold to hospitals and radiology practices as a standalone subscription.
• Sirona Advanced Imaging Suite FDA 510(k)-cleared diagnostic imaging suite with PET-CT support and cloud-native visualization tools; Sirona's first Class II medical device designation, enabling remote interpretation of images within a unified cloud-native diagnostic environment.
• Amplify SDK Developer SDK and embedded AI orchestration layer enabling third-party AI vendors to deeply integrate AI into the viewer, reporter, EHR, and worklist with one-click deployment and invisible algorithmic updates; Sirona serves as the official reseller for embedded AI partners. Sold to AI developers and indirectly to radiology customers via one-click deployment.

Quantifiable outcome

• Up to 25% clinical efficiency gain from unifying disparate IT stacks onto a single universal reading platform
• +5 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability13 records

Feature8 records

Partnerships

Five partnerships are on record, tiered flagship and core.

• Everlight RadiologyflagshipStrategic or Co-development Partner · 1 June 2026Five-year strategic partnership under which Everlight will deploy Sirona's RadOS cloud-native radiology workflow platform across its entire global operation. Replaces Everlight's existing PACS and reporting in Australia, New Zealand, Ireland, UK, UAE, and South Africa, covering 350 hospitals and approximately 800 consultant radiologists. Marks Sirona's first partnership outside the US and is described as one of the largest radiology platform agreements ever signed. Includes co-development of industry-first agentic AI automations and an in-house R&D program built on RadOS.
• SpaceX StarlinkcoreTechnology or Integration · 2 November 2023Sirona announced general support for SpaceX's Starlink platform, enabling its cloud-native performance from anywhere in the world with measured P90 Time to First Image of 2.3 seconds and P90 Speech-to-Text latency under 500ms using Starlink Business.
• Koios MedicalcoreStrategic or Co-development Partner · 28 September 2023Founding AI Partner of Sirona. Sirona serves as an official reseller for Koios AI products and works with Koios to prepare Sirona's Amplify SDK for public release, establishing the first open developer ecosystem in clinical radiology. Customers get one-click access to all Koios AI products on RadOS.
• RevealDXcoreStrategic or Co-development Partner · 17 November 2022Comprehensive distribution and collaboration partnership to integrate RevealDX's CE-marked RevealAI-Lung algorithm into Sirona's unified radiology platform for lung nodule assessment. RevealDX is also a Founding AI Partner of Sirona, embedded into the viewer and reporter with one-click deployment via the Amplify SDK; Sirona serves as an official reseller.
• Amazon Web Services (AWS)coreTechnology or IntegrationRadOS is built natively on AWS, leveraging the world's largest global cloud infrastructure to intelligently transport large imaging datasets to the nearest AWS point-of-presence for low-latency access. Delivers 99.99% availability, redundant and resilient storage, automatic updates via browser refresh, HIPAA-compliant and SOC2-certified security.

Scale indicators12 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• Fujifilm Healthcare (Synapse): Major PACS/RIS vendor with Synapse enterprise imaging portfolio serving hospitals and radiology practices; competes head-to-head in cloud PACS and enterprise imaging workflow replacement deals against Sirona RadOS.
• Philips (Philips Radiology / Carestream HCIS): One of the largest imaging informatics incumbents offering PACS, advanced visualization, and enterprise imaging suites to hospitals and IDNs; a primary competitor in cloud-native PACS replacement bids alongside Sirona.
• GE HealthCare (Centricity / Edison): Broad incumbent offering PACS/RIS, Edison AI platform, and imaging analytics to hospital systems; competes with Sirona on cloud-native enterprise imaging and AI orchestration in large IDN contracts.
• Visage Imaging: Enterprise imaging vendor specializing in cloud-native diagnostic viewer, PACS, and AI workflows for large radiology groups and IDNs; directly comparable as a cloud-deployed alternative to legacy PACS.
• Nuance Communications (Microsoft) - PowerScribe One: Dominant radiology reporting/dictation platform now part of Microsoft; competes with Sirona Reporting and SironaLex LLM in structured reporting and speech-driven workflow for radiology practices.

Broad incumbents

• Epic Radiant: EHR-vendor-embedded radiology information system used by large academic medical centers and IDNs; competes as part of a broader enterprise EHR suite rather than as a standalone cloud radiology OS.
• Optum / Change Healthcare (Radiology Networks): Large healthcare services and IT conglomerate with teleradiology and imaging IT assets (Change Healthcare legacy radiology network); competes in teleradiology distribution and broader radiology services, adjacent to Sirona's teleradiology partnerships.

Emerging players

• Aidoc Medical: Radiology AI platform offering triage, detection, and workflow algorithms across CT/MRI; relevant as a competitor in AI orchestration and as a potential Amplify SDK partner/customer.
• Viz.ai: AI-powered radiology workflow platform specializing in stroke and care coordination; competes in AI-driven clinical workflow and physician coordination use cases adjacent to Sirona's imaging AI orchestration.
• Koios Medical: Radiology AI vendor focused on breast and thyroid ultrasound decision support; a Founding AI Partner of Sirona and reseller through Amplify SDK, representative of the AI vendor ecosystem integrating on RadOS.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/Sirona_Medical
• YouTubeyoutube.com/@SironaMedical
• LinkedInlinkedin.com/company/sironamedical
• Facebookfacebook.com/sironarados

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries1 record

Funding overview

Funding rounds5 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sirona Medical