Spencer Carroll.
Founder of Prior Signal. The through-line of the work: take dense, fragmented records — FOI responses, filings, policy, public data — and structure them so they can be found, checked, and cited, by people and by AI systems. Based in Ottawa, Canada.
Track record, verifiable in public.
The method behind Prior Signal was proven in the open — on a public platform whose claims anyone can trace to source.
Built End The Wait Ontario — a platform that turns freedom-of-information responses and government records into a structured public resource where every figure traces to a primary source.
Read the case study →OPSEU/SEFPO's Worth Fighting For report (June 2026) cites End The Wait Ontario data on the 67,509 children waiting for core autism services; CCRW's national Neurodiversity in the Workplace guide (May 2026) cites the platform's public resource.
See coverage & citations →First-position Google rankings on competitive public-interest terms (sustained 2024–2026), with the platform structured so AI answer systems can identify and cite the primary record.
How we audit this for clients →Building the platforms, pipelines, and retrieval systems that turn raw records into resources people can find, query, and verify — with source-traceability as the operating standard.
See capabilities →Writing & analysis.
Spencer writes Prior Signal’s intelligence briefings on trade policy, applied AI, and the retrieval layer — including when AI answers questions about your organization, whose data does it use?