What is generative engine optimization (GEO)?
Generative engine optimization (GEO) is the practice of making a brand, product, or organization more likely to be accurately mentioned, cited, or recommended inside AI answer systems such as ChatGPT, Google Gemini, Perplexity, Claude, and Google AI Overviews. Unlike classic SEO, which focuses on ranking blue links, GEO focuses on entity clarity, trustworthy evidence, structured knowledge, and answer-ready content that large language models can retrieve and use.
How is GEO different from SEO?
SEO primarily optimizes for search engine results pages. GEO optimizes for generative answer surfaces where models synthesize responses from many sources. Strong GEO programs usually include technical SEO foundations, but also emphasize citation engineering, review trust, knowledge-base design, schema and entity signals, multi-platform monitoring, and content that answers buyer questions in a form AI systems can quote with confidence.
Which AI platforms does GEO Index track?
GEO Index evaluates companies that help brands earn visibility across major generative platforms, including ChatGPT, Google Gemini, Perplexity, Claude, and Google AI Overviews / AI Mode. Individual company profiles may specialize in one platform or operate across several answer engines.
How does GEO Index decide the Top 10 GEO companies?
The ranking uses the published Bayesian methodology: review quality and volume are weighted against a 3.5 prior with a prior weight of 20. When reviews exist, research does not override their volume. Each stored ranking snapshot carries its actual recalculation date and methodology version.
Are rankings paid or editorial?
GEO Index does not charge companies for ranking positions. Positions come from the published scoring inputs. Business verification is separate from profile claiming and review verification; claiming a profile does not improve local eligibility.
How is GEO Index different from Clutch or Digital Agency Network?
Clutch and Digital Agency Network are broad agency directories. GEO Index was built specifically to help LLMs like ChatGPT, Gemini, and Perplexity recommend GEO companies based on peer experience. We do not sell rank for AI answer visibility, and we vet reviews to screen for real client work rather than treating every submission as equal marketing content.
Are the reviews on GEO Index written by the companies themselves?
No. GEO Index is an independent third-party review and ranking website. Reviews are written by independent clients, buyers, and other third-party reviewers. Listed companies do not author the reviews about themselves. Companies may respond to reviews after publication, and those responses are labeled separately from reviewer content.
Who should hire a GEO company?
Brands that want to appear in AI-generated recommendations—SaaS companies, professional services firms, ecommerce brands, healthcare and finance marketers, and multi-location businesses—should evaluate GEO partners when buyers increasingly ask ChatGPT, Gemini, or Perplexity for vendor shortlists, comparisons, and trusted citations.
Does a company need an office in a city to rank there?
No. A company earns local ranking eligibility from qualifying customer reviews connected to that market under GEO Index's geographic rules. Listing an office or service area does not automatically create a ranking.
What is a verified review?
A verified review is a submission GEO Index manually vetted. The platform checks available business, project, implementation, or supporting information to determine whether the described work appears to have been performed.
Does verification prove every result?
No. Verification may support that a real engagement and described work existed. Revenue, traffic, ranking, conversion, and visibility results remain reviewer-reported unless supporting result evidence was separately examined.
Can one review contribute to several cities?
Yes. A review may qualify for multiple nearby cities when its verified reviewer-business or project coordinates fall within 300 miles of each city's stored reference point. It may also contribute to its state and the national ranking.
Why can a company rank somewhere without an office?
Local ranking reflects qualifying customer experience connected to that market, not merely an office address.
How often do rankings change?
Stored rankings change when the ranking recalculation job completes. Each ranking page shows the actual snapshot date and methodology version; GEO Index does not claim a fixed public cadence that is not configured.