An insight repository is a structured knowledge base within research operations that captures findings, evidence, and context from every study an organization runs, making that intelligence accessible across teams and over time. Rather than leaving insights buried in slide decks or shared drives, a well-maintained insight repository connects themes across projects, surfaces contradictions between old and new findings, and gives stakeholders a traceable path back to the original participant conversations. In enterprise qualitative research, the repository functions as institutional memory, reducing duplicated effort, accelerating onboarding for new researchers, and enabling the kind of compounding customer understanding that periodic, siloed studies cannot produce. When integrated with AI analysis, it becomes a living intelligence layer rather than a static archive.