Side-by-side comparison of AI visibility scores, market position, and capabilities
a2z Radiology AI raised $20M in 2025 for its whole-body AI that simultaneously screens for 24+ conditions across CT scans — from incidental cancers to cardiovascular risk — in a single automated read.
a2z Radiology AI has developed a whole-body CT analysis platform that simultaneously screens for over 24 medical conditions across a single CT scan, including incidental cancers, coronary artery disease, aortic aneurysm, bone density loss, and organ abnormalities. The AI acts as a second reader that radiologists can use to catch incidental findings that fall outside the primary reason for a scan — a major source of missed diagnoses.
Customer success platform for growth SaaS CSM teams; account health scoring and playbook automation merged with Totango competing with Gainsight and ChurnZero for SaaS retention management.
Catalyst (also known as Catalyst.io, not to be confused with Totango's merger partner of the same name) is a customer success platform designed for growth-stage SaaS companies — providing account health scoring, customer lifecycle tracking, playbook automation, and customer success manager workspace tools. The platform was founded with the specific vision of serving CSM (customer success manager) teams that outgrow simple spreadsheet tracking but don't yet need Gainsight's full enterprise complexity.\n\nCatalyst's interface is built around the daily CSM workflow — a workspace where each CSM sees their portfolio of accounts with health scores, upcoming renewal dates, recent product usage signals, and outstanding tasks. The health score aggregates multiple data sources (product usage, support tickets, NPS responses, CSM sentiment) into a single indicator. Playbooks trigger automated actions when account health changes — creating tasks, sending automated emails, or alerting the account manager to intervene.\n\nIn 2025, Catalyst merged with Totango (a larger customer success platform) in 2023, creating a combined company with broader market coverage. The merged entity competes with Gainsight, ChurnZero, and Vitally for customer success platform share. The Catalyst brand may continue as a distinct offering targeting mid-market SaaS companies within the combined Totango/Catalyst portfolio. Customer success platforms have proliferated as SaaS companies recognize that preventing churn and driving expansion revenue requires systematic customer engagement beyond reactive support. The combined Catalyst/Totango platform aims to serve customers from startup to enterprise stage.
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