Gumshoe is an AI search visibility and brand-intelligence platform founded by Todd Sawicki and Patrick O'Donnell in Seattle in 2025. Rather than simply checking whether a brand appears in AI answers, Gumshoe creates representative buyer personas, generates realistic prompts, and runs structured conversations across major AI models. It measures brand visibility, competitive positioning, sentiment, citations, product perceptions and topic-level performance. Its newer subscription platform adds Technical Audits, Content Audits, Citation Audits and recurring Snapshot Audits. Gumshoe currently tracks 11 AI model families, with each full Visibility Audit running across six models. It is used by more than 10,000 brands and agencies according to the company.