Part of GEOly's "GEO / AEO Expert Watch" series — meet Garth O'Brien, a quick map of their public work and where to follow them, with links to the original sources.
Who is Garth O'Brien
Director and Head of SEO at Chewy, leading enterprise organic search across a vast, competitive product catalog. With 20+ years running in-house and agency programs, he's a go-to voice on scaling AI-search visibility for large ecommerce and marketplace sites.

These experts focus on unifying SEO, AEO and GEO into one operable "search everywhere" system inside large — even regulated — organizations. Their recurring focus areas include: Enterprise SEO, AI strategy, Chewy.
What GEO / AEO practitioners can learn from Garth O'Brien
- Unify, don’t silo: SEO / AEO / GEO are not three teams but one set of content and trust assets shown across surfaces.
- Compliance is trust: in regulated industries, accurate, sourceable content is both a requirement and a trust signal AI wants to cite.
- Operate at scale: use templates, structured data and process to make visibility optimization a repeatable production line.
GEOly angle: Enterprise ecommerce: AI search across large product catalogs.

What it means for brands going global
Larger global enterprises should fold AI visibility into unified content governance: maintain facts and structure once, output consistently everywhere (site, socials, AI answers) — lowering compliance risk while improving citation stability.
Want to see how your own brand shows up across ChatGPT, Perplexity and Google's AI answers — and how you stack up against competitors? That is exactly what GEOly's brand GEO audit measures: citations, share of mentions and answer share, tracked over time.



