A GEO agency (generative engine optimization agency) gets your brand cited and recommended inside AI answers from ChatGPT, Perplexity, Gemini, Claude and Google AI Overviews by changing the sources those engines read. A good GEO partner reports where you are missing, then produces the pages, third-party presence and structured answers that change what engines say about your category. Most enterprise teams in October 2026 already run SEO and paid programs, so the question is which GEO agency adds work your current vendors cannot, and how you will know it is working.
Key takeaways
- A GEO agency earns your brand a place in AI-generated answers by shaping the pages and third-party sources that AI engines cite.
- The strongest GEO partners produce the fix, such as comparison pages, answer-shaped articles and off-site presence, instead of selling a dashboard alone.
- GEO success is measured by citation share, inclusion in comparison answers and topic-level visibility, not by keyword rank alone.
- Enterprise buyers should test a GEO agency on prompt set construction, reporting cadence, approval workflows and fit with in-house SEO and content teams.
What a GEO agency actually does
A GEO agency works on the inputs AI engines draw from: your own site, the review sites, forums and reference pages those engines cite, and how your content is structured for retrieval. Agree on scope in writing, because the acronym is crowded. A search for "GEO" returns everything from NIST radio broadcasts whose messages begin with the letters GEO in Morse code to coverage of Geo Group's detention business. The core work covers:
- Prompt and query research: building the set of buyer questions that matter, such as "best cloud security platform for a 2,000-person company".
- Topical mapping: finding gaps where competitors have a page and you do not.
- Retrieval-focused formatting: answer-first paragraphs, question headings, comparison tables and FAQPage, Product or Organization schema.
- Entity and knowledge-base optimization: keeping the facts about your product, pricing model and integrations the same across your site and profiles.
- Off-site authority: presence in the Reddit threads, review sites and comparison articles that engines cite.
- Content refreshes: updating pages that lose citations as engines pick newer sources.
- AI visibility tracking: recording which domains get cited for each query, week over week.
Our guide to generative engine optimization services breaks these deliverables down further.
GEO vs SEO: where the work changes
GEO targets citations and mentions inside generated answers, while SEO targets rankings and clicks on a results page. Both rest on crawlability, authority and useful content, but they differ in where the answer appears and how success is measured, as we cover in where GEO and SEO split.
| Dimension | Traditional SEO | GEO |
|---|---|---|
| Goal | Rank a URL and earn the click | Be named or cited in the answer |
| Where it shows up | Google and Bing results pages | ChatGPT, Perplexity, Gemini, Claude, AI Overviews, plus the sources they cite |
| Main tactics | Keywords, links, technical health | Answer-shaped pages, third-party mentions, consistent entity facts |
| Success metric | Position, organic sessions | Citation share, mention rate, inclusion in comparisons |
| Preferred format | Long-form pages built around a keyword | Self-contained answers, tables, explicit comparisons |
In practice, a GEO partner spends much of its effort off your domain. If an AI Overview for your category cites a Reddit thread and two review sites, rewriting your own blog will not move that answer on its own.
Engagement models and what each includes
GEO agencies sell four common engagement models. Which one fits depends on whether you need diagnosis, direction or output.
| Model | Typical scope | Best fit |
|---|---|---|
| Audit-only | Prompt set, citation baseline, gap list, priority recommendations | Teams with strong in-house content capacity |
| Strategy retainer | Ongoing prioritization, briefs, monthly reporting | Teams that write in-house but need direction |
| Content production retainer | Comparison pages, answer-shaped articles, refreshes published to the CMS | Teams short on writers who understand retrieval |
| Managed program / enterprise advisory | Strategy, production, off-site presence and tracking under one governed process | Enterprises replacing several point vendors |
Audits go stale fast because AI answers shift week to week, and without someone to act on the findings, an audit becomes a slide deck. Weigh any model against building the capability yourself, which we cover in agency or in-house team.
How to evaluate a GEO agency
Judge a GEO agency first on its method, then its output, then its governance. Start with these questions on the pitch call:
- How do you build the prompt set? It should come from buyer questions, sales calls and search data, not vanity prompts like "who is the best brand".
- How do you collect answers? API calls, browser sessions and panel data each produce different results, so ask which engines, how often and in which regions.
- What do you produce, and who publishes it? Ask for sample comparison pages and how they reach your CMS.
- How do you work off-site? Get specifics on Reddit, review sites and community guidelines.
- What is the approval process? Claims about security, compliance or pricing need brand and legal sign-off before anything goes live.
- How do you work with our SEO and content teams? GEO that ignores your existing site architecture creates duplicate pages.
- What is the reporting cadence? Weekly data with a monthly review is a sensible baseline.
Warning signs: volume promises ("40 AI-optimized articles a month"), unedited AI copy, guaranteed placement in ChatGPT, and reporting that shows mentions without the source domains behind them.
Matching the fix to the weakness
- A cloud security vendor absent from "X vs Y" answers usually lacks honest comparison pages. The fix is a set of comparison pages with tables and a clear statement of which use cases each product fits.
- A consumer security brand with strong pages but few third-party mentions needs off-site work, because engines lean on Reddit and review sites for "is X worth it" questions.
KPIs: how to measure a GEO partner
The test of a GEO partner is whether AI engines cite and recommend you more often for the queries your buyers ask. Track these numbers:
- Citation share: the percentage of tracked queries where your domain is cited, split by own site, competitor, Reddit, review sites and references.
- Brand mention rate: how often answers name you, cited or not.
- Comparison inclusion: presence in "best X for Y" and "X vs Y" answers.
- Topic-level visibility: movement by cluster, such as "cloud posture management", rather than by single query.
- Off-site durability: whether placed replies and mentions stay live.
- Assisted pipeline: self-reported attribution ("found you via ChatGPT") and AI referral sessions.
If you track 120 category queries and your domain is cited in 18 of them, your citation share is 15%. A target of 30% within two quarters is a concrete goal. "More AI visibility" is not.
How Tellr runs GEO as a governed program
Tellr runs GEO inside one managed program that also covers Reddit, answer visibility tracking and paid creative, so the citation gaps it finds turn directly into work. Its senior team writes comparison pages, reviews and answer-shaped articles from your knowledge base and real user reviews, publishes them to your WordPress site, and tracks each week which domains Google and its AI Overviews cite for your queries.
- A category map of threads, queries and AI answers in week one; an agreed brief and guardrails in week two.
- Claim guardrails, an approval gate and an audit trail before anything goes live.
- Weekly citation share labelled by source type, with a monthly program review.
- API access and "Tellr for Claude", an MCP server that answers plain-language questions about the program.
Tellr is priced per engagement for teams spending $10k+ a month, and it is not built for launches that need results in three weeks.
A checklist for choosing your GEO partner
Before you sign, ask the GEO partner to show you its prompt set, sources, output and approval process, and check them against this list:
- The prompt set covers real buyer questions across awareness, comparison and purchase stages.
- Tracking names the cited domains for each query, not only a visibility score.
- The agency produces and publishes content, not just briefs.
- Off-site work stays within each community's rules.
- Weekly reporting feeds a monthly review tied to pipeline.
- The model fits your size; smaller teams are often better served by a self-serve tracking tool.
The right GEO agency fills the gap your team actually has. If you have writers, hire for diagnosis. If you have strategy, hire for production. If you need all of it, hire a governed program that runs it as one.
FAQ
What does a GEO agency actually do?
A GEO agency improves how often your brand is cited or recommended in AI answers by working on the sources those engines read. That includes your site content, structured formatting, entity consistency, third-party mentions, content refreshes and AI visibility tracking.
How is GEO different from traditional SEO?
SEO focuses on ranking pages and earning clicks from search results, while GEO focuses on getting your brand named or cited inside generated answers. GEO relies more on answer-shaped pages, explicit comparisons, entity consistency and third-party sources that AI engines cite.
How should you evaluate a GEO agency?
Evaluate the agency on its method, output and governance. Ask how it builds the prompt set, how it collects answers, what it produces and publishes, how it handles off-site work, what approval process it uses, how it works with your SEO team and how often it reports.
What KPIs matter when measuring a GEO partner?
The article recommends tracking citation share, brand mention rate, comparison inclusion, topic-level visibility, off-site durability and assisted pipeline. These metrics show whether AI engines are citing and recommending your brand more often for buyer-relevant queries.
What are the warning signs of a weak GEO agency?
Warning signs include volume-based promises, unedited AI copy, guaranteed placement in ChatGPT and reporting that shows mentions without naming the source domains behind them.