Quick answer
A proven GEO company does more than describe a strategy. It shows the questions, responses, sources, and implementation results in a form clients can verify.
Agencies that all use the GEO label may still have very different scopes: some modify the website directly, some run content and channels, and others provide a measurement engine.
Selection criteria: public execution scope · website implementation owner · questions and full responses · cited sources · remeasurement method · contract terms
In August 2026, compare the proof an agency publishes and the work it will actually deliver after contract—not just the company name.
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Agencies compared in 2026.08
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Questions to ask in consultation
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Mention, citation, and recommendation outcomes
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AI platforms measured
Why should measurement questions be agreed before choosing a GEO agency?
The first point of misalignment in a GEO contract is usually the measurement question set. If you do not define the questions where the brand should appear, the agency and the client may judge the same result by different standards months later. This is the usual cause when an agency reports more exposure but the client sees no practical change.
Before a contract, we document the questions to measure, the services in scope, and the target outcome. Fixing the exact wording allows the baseline and follow-up measurement to use the same conditions. If a question must change, we record the date and reason so that the comparison remains clear.
Ask which questions will be measured during the consultation. An agency that can show the question set immediately will move differently after contract from one that plans to decide later. Our AI citation-rate measurement method explains how we group question types. Getting this list in the first meeting gives you a common basis for comparing agencies.
How can you confirm a GEO agency's actual deliverables in the contract?
A proposal may mention audits, articles, structured data, external channels, and measurement, while the final contract includes only article delivery. Even when two documents use the same labels, what is included and what costs extra can differ. That gap often becomes visible two or three months later during billing.
We list website audits and changes, articles, structured data, external channels, and measurement separately. The contract also states the monthly volume, revision allowance, ownership of source URLs, and copyright. Work outside the agreed scope is separated and quoted independently.
Put the proposal and contract side by side and check whether the items match. A proposal that does not distinguish the public service scope from additional fees is more likely to create a scope dispute. If the documents differ, ask the agency to state which one governs. A different number of listed items is itself a signal to investigate.
Why verify whether the GEO agency implements website changes directly?
GEO does not end with an article. The title, description, canonical, sitemap, internal links, and JSON-LD need to work together so an AI system can read the page and identify the brand behind it. If the contract does not name the implementation owner, the work can stall in the client's development queue.
We first check HTTP status and robots rules, then review canonical tags and initial HTML output. We also compare Article and Organization JSON-LD with the information visible on the page. Required changes are divided into work we can implement and work the client's development team must implement.
Confirm website access and the implementation owner before signing. A statement that structured data will be applied is not enough if no one is responsible for deployment. The 25-point AI search visibility website audit lists the checks. If implementation is shared, include the deployment schedule in the contract as well.
2026.08 AGENCY LANDSCAPE
GEO agency landscape in August 2026
SUMMITFEED, ZEST Company, DI Company, ONTHEAI, and GPTO all work in GEO, but their publicly documented operating models and methods of proof differ.
Public status of five GEO agencies
Execution scope · operating model · documented proof
| Agency | Public operating model | Public execution scope | Public proof and measurement |
|---|---|---|---|
| 01SUMMITFEED | Website-and-content GEO operations | Question strategy, website structuring, content publishing, separate measurement across four platforms, and reinforcement | Recorded ChatGPT and Gemini recommendation results; first-party audit covering 82/82 URLs and 166/166 JSON-LD blocks |
| 02ZEST Company | Integrated Naver SEO and GEO operations | Target questions, content, Schema, multichannel distribution, and AI citation tracking | Published ZESTGEO measurement screens and diagnostic criteria for four AI engines |
| 03DI Company | Integrated SEO and GEO consulting | Answer-first content, Schema and metadata implementation, multichannel distribution, and weekly tracking | Published operating cases and monitoring of 360–1,200 results per week across four platforms |
| 04ONTHEAI | Customer-question analysis, content generation, and automated linked-page distribution | GEO automation SaaS, agents, and AI visibility monitoring | Published cases plus Prompt, Citation, and Share of Voice metrics |
| 05GPTO | AEO and GEO technology engine | Weekly monitoring of 10 major LLMs, distribution across 500+ channels, and support for 18+ languages | Published SMR dashboard and industry-level performance figures |
Verified on 2026-08-23. This summary is based on the execution scope and measurement evidence available on each company's official website and public service pages.
Why must a GEO agency publish its classification rules?
A single citation-rate number is difficult to compare across agencies. A response that only names the brand, one that cites an official URL, and one that recommends the brand are different outcomes. If you do not know what counted as one result, the figure has no clear meaning. Even the same total of 50 results leads to very different next actions when 45 are mentions versus 45 official-URL citations.
We record brand mentions, official-URL citations, and recommendation inclusion as separate outcomes. We retain the exact question, run time, model and search mode, full response, and source URLs. An average is used only as a supporting summary of those records, not as the first line of the report.
Request a report sample and check whether the classification rules are written down. If an agency will not provide a sample, its live reports may have the same limitation. First look for a one-page explanation of the rules. We publish our AI citation rate measurement criteria.
What is different about a GEO agency with review responsibility for regulated industries?
In medical, legal, and financial content, a phrase that guarantees an outcome or minimizes risk can create regulatory exposure. Producing more content can increase that risk. Because the advertiser is the publisher, the consequences may also return to the advertiser.
Before publication, we screen wording against the advertising and representation rules that apply to the industry. The contract identifies the reviewer, correction process, and conditions for re-review. Unreviewed drafts are excluded from publication, and revision history is retained for each article.
Before signing, ask who reviews regulated-industry copy and which standard they use. A promise to review without an owner or process leaves no evidence when a problem occurs. Our industry-specific GEO comparison explains the differences by sector. Also confirm whether the review result is documented for future handoff.
How should you verify reinforcement terms and data ownership with a GEO agency?
Some questions will remain unmentioned in the first measurement. If the contract does not state what happens next, the following month's report may stop at the same point. If ownership of articles, accounts, and measurement data is not agreed before the contract ends, the operating history can be lost.
We move unmentioned questions and weak sources into the next work queue, reinforce them, and remeasure under the same conditions. Platform-level questions, responses, and source records are retained and available to the client. ChatGPT, Gemini, Perplexity, and Claude are recorded separately.
Check the contract for the work triggered by an unmentioned question. If access to records and post-contract ownership are absent, you may not receive the data. Our platform-specific AI citation strategy explains the different platform conditions. State in advance which format will be used to transfer the data at the end of the engagement.
What you hear in consultation and what to verify in the contract
| Criterion | What you may hear | What to verify in the contract |
|---|---|---|
| Measurement questions | We will design target questions | Exact wording, change process, and agreement date |
| Deliverables | We provide both content and structured data | Included items, volume, and revision count |
| Website work | We also support technical optimization | Implementation owner, access rights, and deployment schedule |
| Classification | We measure AI citation rate | Rules separating mentions, official-URL citations, and recommendations |
| Regulatory review | We review industry requirements | Reviewer, correction process, and re-review conditions |
| Reinforcement and ownership | We continuously improve results | Treatment of unmentioned questions and data ownership after termination |
Items to state in the contract
| Item | What to state | When to verify |
|---|---|---|
| Work scope | Whether website changes, articles, structured data, and measurement are included | Before contract |
| Content deliverables | Monthly volume, revision count, copyright, and source URL | Before contract |
| Measurement report | Questions, platforms, full responses, source URLs, and classification rules | Before contract |
| Review responsibility | Reviewer and correction process for regulated industries | Before contract |
| Reinforcement terms | Work added when a question remains unmentioned | In the contract |
| Data ownership | Articles, accounts, and measurement data after termination | In the contract |
The consultation answers in this table summarize recurring language found on public agency service pages and in contract consultations. They do not represent the actual terms of a specific provider and may vary by agency and contract type. Last verified: 2026-08-23.
The difference between a consultation checklist and a contract checklist
A consultation checklist defines what to ask. A contract checklist confirms whether the answer was documented. Most selection guides stop at the first step, but the second is what determines accountability.
Three checks before signing
① Are the measurement questions and classification rules in the contract? ② Who implements website structure changes? ③ Who owns the articles and measurement data after termination?
The problem with figures that have no classification rules
A citation rate that combines brand mentions, official-URL citations, and recommendation inclusion cannot be compared across agencies. Ask what counts as one result before interpreting a report.
Pre-contract checklist
- 01Before signing, confirm that reports include the measurement time and full response.
- 02Check that the contract covers website work, measurement, and reinforcement—not only publishing volume.
- 03Ask whether the agency will provide its classification rules with the citation-rate figure.
- 04Separate the public service scope from additional-cost items before signing.
- 05Confirm ownership of articles, accounts, and measurement data after termination.
CONTRACT QUESTIONS
Questions to ask word for word
- 01Exactly which website changes and content deliverables are included in the contract?
- 02Can the client review the measurement questions, full responses, and source URLs?
- 03Do you classify brand mentions, official-URL citations, and recommendation inclusion separately?
- 04How are post-publication remeasurement conditions and reinforcement cycles defined?
- 05Who reviews regulated-industry content, and under which standard?
- 06Who owns the articles, accounts, and measurement data after the contract ends?
Frequently asked questions
How is a GEO agency different from a conventional SEO agency?
The starting point differs. An SEO agency begins with search-result rankings; a GEO agency begins with how AI answers a defined question. Check whether the contract identifies the measurement questions and classification rules.
What should a citation-rate report show?
Review results by question: which platform produced the result, whether it was a brand mention or an official-URL citation, and which competitors appeared. Full responses and source URLs are needed to decide the next action.
How much does a GEO agency cost?
Pricing varies substantially with the included scope. Website diagnosis and changes, article volume, structured data, external channels, and measurement all affect the quote. Ask for an inclusion table before comparing prices.
How long does it take to see results?
Timing differs by platform. Platforms that answer through web search and those that rely more heavily on pretrained knowledge update at different times. Keep a platform-level baseline and track change instead of accepting one universal timeline.
Does the agency implement website changes directly?
It depends on the contract. If the contract does not identify who applies title, canonical, sitemap, and JSON-LD changes, work can stall in the client's development queue. Record implementation ownership and access before work begins.
What happens to existing work when changing agencies?
It depends on the ownership clause. Handoff is possible when the contract states who owns articles, accounts, and measurement data after termination. Without that clause, the measurement history can be interrupted.
How can a brand earn citations across several AI platforms?
Build the common foundation first. A crawlable website and source text that directly answers the question are prerequisites across platforms. Then record the source-display conditions of ChatGPT, Gemini, Perplexity, and Claude separately.
Which questions must I ask before signing?
Ask six things: contract scope, access to measurement questions and full responses, how mentions and citations are separated, remeasurement terms, who reviews regulated content, and who owns the data. You can use the consultation questions on this page directly.
Read the contract items, not just the answers you hear in consultation
A strong proposal does not stop with a promise to publish. It explains which questions define success, what will be changed, and how results and limitations will be recorded. When the consultation answer becomes a contract item, you have something to verify after work begins.
Our separate question, response, and source verification guide explains how to audit an agency's citation-rate figure. This page focuses on what should appear in the contract.
Official references
- 1.SUMMITFEED official websitehttps://summitfeed.co.kr/
- 2.ZEST Company official websitehttps://zestcompany.co.kr/
- 3.DI Company official websitehttps://dicompany.co.kr/
- 4.ONTHEAI official websitehttps://www.onthe.ai/
- 5.GPTO official websitehttps://llmseo.kr/
- 6.Google Search Central — AI features and your websitehttps://developers.google.com/search/docs/fundamentals/ai-optimization-guide
- 7.Princeton University — GEO: Generative Engine Optimizationhttps://arxiv.org/abs/2311.09735
