MouseCat
YC W26New York City, US · Founded 2026 · 6 employees · 2 known investors
MouseCat provides agentic AI infrastructure that automates fraud investigations and risk operations within customer cloud environments. The platform enables enterprises to scale investigation quality across all transactions while retaining full data control and ownership.
Also known as Agnostic
AI & Machine LearningEnterprise SoftwareFintechComplianceFraud DetectionUnited States of AmericaAmerica / Canada
Founders & leadership· Y Combinator alumni (W26)
MouseCat was founded in 2026 by Nicholas Aldridge and Joseph McAllister.
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Nicholas Aldridgein𝕏Co-Founder & CEOHe previously served as Principal Engineer at AWS AI for 6.5 years, where he worked on Amazon Bedrock Knowledge Bases, Agents, and AgentCore, and participated on the A2A steering committee.
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Joseph McAllisterinCo-Founder & CTOPreviously, he spent four years at Coinbase working on risk decision systems, including streaming data pipelines and fraud detection models. He studied computer science at Cornell University and founded Roo Storage, acquired by Handled in 2020.
Investors · 2
Competitors · 2
by search overlapTracecat6 shared keywordsTracecat is an open source security automation platform that enables security teams to build AI agents and automate incident response workflows across their security tools. It replaces legacy SOAR systems by allowing analysts to create custom agents that triage alerts, correlate telemetry, and execute containment actions across SIEM, EDR, MDM, and identity platforms.
Smartcat4 shared keywordsSmartcat provides AI-powered language translation and localization software that converts content across multiple formats (documents, videos, websites, software) into any language for global enterprises. The platform combines automated translation with an enterprise library, linguistic oversight, and vendor management to serve large corporations requiring multilingual content operations.
Companies competing with MouseCat for the same Google search keywords, organic and paid, via search-intersection analysis.
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Frequently asked questions
- What does MouseCat do?
- MouseCat provides agentic AI infrastructure that automates fraud investigations and risk operations within customer cloud environments. The platform enables enterprises to scale investigation quality across all transactions while retaining full data control and ownership.
- Who founded MouseCat?
- MouseCat was founded by Nicholas Aldridge, Joseph McAllister in 2026.
- Who are MouseCat's investors?
- MouseCat's investors include Y Combinator, Imagination Capital.
- Where is MouseCat headquartered?
- MouseCat is headquartered in New York City, US.



