Companies

a2z Radiology AI

a2zradiology.ai

a2z Radiology AI builds FDA-cleared AI that triages seven urgent abdomen-pelvis CT findings in one integration.

HQBoston, Massachusetts, United States
Employees11-50
Funding$4.5M
5 active roles
Profile 1mo agoJobs checked 23h ago
Healthcare AIFoundation Model ProviderB2B SaaSSeed$1M-$10M

About

a2z Radiology AI builds FDA-cleared clinical AI for health systems: its a2z-Unified-Triage system simultaneously flags seven urgent abdomen-pelvis CT conditions and moves flagged studies up radiologists’ worklists. It differentiates itself from single-condition point solutions with one foundation model and one integration, while validating performance on each institution’s historical scans before deployment.

Market

a2z Radiology AI competes in enterprise radiology AI and medical-imaging workflow software, positioning itself as an intelligence layer that provides immediate CT answers and prioritizes suspected emergencies on the worklist. Its primary differentiation is a single FDA-cleared system that simultaneously triages seven urgent abdomen-pelvis findings, rather than the single-condition approach common in earlier radiology AI products, while also pursuing AI-assisted reporting and broader comprehensive interpretation.

Target Customers

U.S. radiology practices and health systems, including academic medical centers and community hospitals, that need to prioritize urgent abdomen-pelvis CT studies and accelerate radiologist reporting. The primary buyers are radiology leaders, imaging-service administrators, and clinical care teams managing high CT volumes and emergency-care backlogs.

At a Glance

Problem

Radiology demand is growing faster than the available radiologist workforce, creating longer waits for reads that guide urgent clinical decisions. Abdomen-pelvis CT is a particularly large and consequential workload, with more than 20 million U.S. exams annually. The core pain is that a critical finding can sit behind routine studies in a crowded worklist, delaying treatment and increasing the risk that urgent disease is not acted on quickly.

The killer use case is emergency and backlog triage: identifying suspected acute conditions such as small-bowel obstruction, free air, pancreatitis, or an abdominal aortic aneurysm and moving those studies to a radiologist sooner. Rather than asking clinicians to manage separate AI alerts for isolated diseases, a2z targets the broader operational problem of prioritizing the entire abdomen-pelvis CT queue.

Product / Service

a2z-Unified-Triage is an FDA-cleared radiological computer-aided triage and notification system for abdomen-pelvis CT. Its single model analyzes the whole scan in one pass for seven urgent findings—small-bowel obstruction, acute cholecystitis, acute pancreatitis, acute diverticulitis, hydronephrosis, free air, and unruptured abdominal aortic aneurysm—and flags suspected cases so they are moved to the top of the worklist. The product is offered for integration into U.S. practices' and health systems' existing workflows, with a2z also offering a review of historical scans before deployment.

The intended benefit is faster access to critical studies without requiring seven separate integrations. The system was validated across 12 clinical sites and a 675-case test cohort, with all seven findings meeting acceptance criteria. Separately, the company's prospective abdomen-pelvis study of AI-assisted preliminary report drafting reported a 17.8% reduction in reporting time, a 14.8% increase in radiologist confidence, and a 22.4% reduction in mental demand, suggesting a broader product direction beyond triage.

Market

a2z competes in clinical radiology AI, specifically FDA-cleared computer-aided triage and worklist-prioritization software for medical imaging. Its differentiation is breadth: a2z says existing solutions commonly address one condition at a time, while it is building toward comprehensive interpretation of a study. The clearest named competitor in the evidence is Aidoc, which also markets FDA-cleared comprehensive abdomen CT triage; a2z additionally competes with the wider set of single-condition radiology AI tools.

The company is an early-stage commercial entrant rather than a scaled incumbent. Founded in 2024, it raised a $4.5 million seed round co-led by Khosla Ventures and SeaX Ventures in December 2025, after receiving FDA clearance and presenting at RSNA 2025. The funding was earmarked for health-system partnerships, product development, and commercial rollout in 2026, and the product is described as available for clinical deployment. The gathered evidence does not disclose revenue or named customer deployments, so its demonstrated traction is regulatory clearance, multi-site validation, investor backing, and movement toward commercialization—not yet publicly documented commercial scale.

Founders & Leadership

Samir RajpurkarFounder
Co-Founder & CEO
Pranav Rajpurkar, PhDFounder
Co-Founder & Science
Jeffrey Brown, MDChief Medical Officer
Michael Moritz, MD, CIIPChief Medical Information Officer

Funding History

2025-12
Seed$4.5M

Khosla Ventures, SeaX Ventures

Recent News

2026-06-10
a2z at SIIM 2026 — Pittsburgh, June 10–12

a2z Radiology AI presented its FDA-cleared multi-condition abdomen-pelvis triage at the SIIM Annual Meeting, alongside image-to-report drafting still in research.

2026-06-01
a2z at IPR 2026 — Boston, June 1–5

At the International Pediatric Radiology Congress, a2z highlighted its FDA-cleared adult CT triage and discussed research evaluating how its model behaves on pediatric abdomen-pelvis CT.

2026-04-14
a2z at ARRS 2026

a2z Radiology AI showcased FDA-cleared multi-finding triage and AI-assisted structured reporting at the ARRS Annual Meeting in Pittsburgh.

2025-12-10
Imaging artificial intelligence startup a2z Radiology raises $5M, scores 1st FDA clearance

Radiology Business covered a2z's seed financing and first FDA clearance. The article body identifies the financing as $4.5 million, despite the headline rounding the amount to $5 million, and says the company plans commercial deployment and additional products.

2025-12-09funding
a2z Radiology AI Raises $4.5M Seed Round to Scale Comprehensive CT Interpretation

a2z announced a $4.5 million seed round with participation from Khosla Ventures and SeaX Ventures. The funding is intended to accelerate deployment of its FDA-cleared triage system, broader imaging R&D, health-system partnerships, and a 2026 commercial rollout.

2025-11-26product
a2z Radiology AI Introduces First Multi-Condition Triage for Abdomen-Pelvis CT

a2z announced FDA clearance for a2z-Unified-Triage, which flags and prioritizes seven urgent findings on abdomen-pelvis CT scans in a single integration, including bowel obstruction, cholecystitis, pancreatitis, diverticulitis, hydronephrosis, free air, and unruptured abdominal aortic aneurysm.

2025-11-23
Three a2z Team Members Named to Radiology Business 40 Under 40 Class of 2025

a2z announced that three members of its team were named to Radiology Business's 2025 40 Under 40 class, recognizing emerging leaders in radiology.

Active Roles

5
Remote (United States)/Sales/21d ago
Remote (International)/Implementation Engineer/21d ago
Boston/Engineering/21d ago
Remote (International)/Engineering/59d ago

Business Model

a2z appears to sell enterprise clinical AI deployments to health systems through institution-specific demos, pilots, integrations, and commercial rollout. Public materials do not disclose fixed pricing or whether contracts are subscription-, usage-, or license-based.

Products

a2z-Unified-Triage: FDA-cleared multi-condition abdomen-pelvis CT triage for seven urgent findingsAI-assisted preliminary report drafting for abdomen-pelvis CTComprehensive medical-imaging interpretation platform, expanding from abdomen-pelvis CT to additional anatomies and modalities

Tech Stack

Medical-imaging AI/ML for CT analysisMulti-condition abnormality detection and triageAI-assisted preliminary report draftingWorklist-prioritization workflow integrationFDA-cleared radiology software

Competitors

Aidoc
Annalise.ai
Avicenna.AI
Viz.ai
Qure.ai
Gleamer

Key Investors

Khosla Ventures, SeaX Ventures