Best AI SEO Agencies: How to Choose a GEO Firm in 2026

Choose a firm by what it commits to in writing, not by its label. Ask what it delivers each month, what it measures and how often, how it handles answers that change from run to run, and what it refuses to promise. Nobody controls what an AI assistant says, so credible firms sell work and measurement, never guaranteed citations.

This guide gives you ten questions, a scorecard, a comparison of agency, tool and in-house options, and the red flags. It applies to every firm, including ours. It names no firms and ranks none. Any list of the best AI SEO agencies, including one written by a provider, carries a conflict of interest, and the useful comparison is between the written terms in each proposal, not between brand names. We are a provider, and the last section says what we offer so you can score us on the same sheet.

The decision is harder than it looks because the market uses many names for overlapping work. A firm may sell AI SEO services, generative engine optimization (GEO), answer engine optimization (AEO), LLM SEO or AI visibility, and two firms with different labels may deliver nearly the same thing. Our explainers on AEO vs GEO vs SEO and what LLMO means cover the vocabulary. Judge the deliverables, not the acronym.

What these agencies actually deliver

Whatever the label, the work falls into four groups. Ask any firm which of them are in scope and who does each one.

- On-site work. Crawlable pages, clear plain-text answers to the questions buyers ask, structured data, and accurate details about your company, people and products so machines read them the same way you describe them.

- Off-site work. Answers can cite pages other than yours, so what third parties publish about you matters: coverage, profiles, reviews and community discussion. This is where disclosure rules apply, covered below.

- Measurement. A fixed set of prompts run on a schedule, with the results recorded: whether you are mentioned, whether the answer is accurate, and which sources the assistant cites.

- Repair. Fixing existing problems, such as outdated, wrong or negative pages that sit behind what an assistant says about you.

Be careful about anything that sounds like a secret method. Google's documentation on AI features says there are no additional requirements to appear in AI Overviews or AI Mode, that no special optimizations are needed, and that indexing and serving are not guaranteed. A page must be indexed and eligible to appear in Search with a snippet to be shown as a supporting link. The same page says traffic from AI features is counted in the overall Web search type in Search Console. Much of this field is therefore sound search fundamentals plus careful measurement, and a firm that claims a hidden lever Google does not document owes you evidence.

Agency vs tool vs in-house

Most buyers are really choosing between three models. The table shows typical differences. Treat it as a map of models, not a description of any one company, and ask each vendor which column it belongs in.

• Main job

  Agency

  Do the on-site and off-site work and report on it

  Software tool

  Run prompts and show you the results on a dashboard

  In-house team

  Own the work inside your company

• Who does the work

  Agency

  The firm's analysts, writers and specialists

  Software tool

  You. The tool measures; it does not fix anything

  In-house team

  Your employees, possibly with contractors

• What you get

  Agency

  Scoped deliverables, usually with a recurring report

  Software tool

  Data, alerts and charts, often self-serve

  In-house team

  Full control and institutional knowledge

• What it cannot do

  Agency

  Control what assistants say

  Software tool

  Decide what to change or make the change

  In-house team

  Scale quickly without hiring

• How you pay

  Agency

  Retainer, project or per-deliverable, set in writing

  Software tool

  Subscription, often by seats or prompts tracked

  In-house team

  Salaries and tools

• Main risk

  Agency

  Vague scope and unverifiable claims

  Software tool

  Dashboards nobody acts on

  In-house team

  Slow start and key-person dependence

• Best fit

  Agency

  Teams that want the work done and someone accountable

  Software tool

  Teams that can act on data themselves

  In-house team

  Larger teams with steady capacity, often paired with a tool

These are not exclusive. Many companies use a tool for measurement and an agency or in-house team for the work. The question is who is accountable for each deliverable.

The ten questions

Ask every shortlisted firm the same ten questions in writing. A good answer is specific and checkable. A weak one is confident and vague.

- 1. What exactly will you deliver? Ask for a list: technical fixes, page rewrites, structured data, profiles, third-party coverage, reporting. Each item should have a quantity or a clear definition, an owner and a date. 'Optimization' on its own is not a deliverable.

- 2. What do you measure, and how often? Look for a baseline before work starts, a named set of prompts, the assistants covered, a stated cadence, and measures beyond mentions, such as accuracy and which sources are cited. Ask how the firm reports AI visibility alongside ordinary Search Console data.

- 3. How do you handle answer variance? AI answers can differ between runs, between users and over time. Ask how many times each prompt is run, how prompts are chosen, how results are dated, and whether results are reported as patterns rather than one cherry-picked screenshot.

- 4. What will you not promise? The right answer includes citations, mentions, rankings, traffic and the exact wording of any answer. Google says indexing and serving are not guaranteed, and no vendor controls an assistant. A firm that guarantees an AI result is selling certainty it does not have.

- 5. Who writes and approves the content? Ask who drafts, who checks facts, whether AI tools are used for drafting, and whether you approve everything before it goes live. In regulated fields, ask where compliance review fits. You should see and approve final copy.

- 6. How is third-party coverage earned and disclosed? Ask whether any placement is paid, which outlets are named, and how sponsored material is labeled. The FTC's native advertising guide (December 2015) says an ad should not imply it is anything other than an ad, and that where a disclosure is needed it must be clear and prominent, close to the ad's focal point. It says terms such as 'Ad' or 'Advertisement' are likely to be understood, and that 'Promoted' is ambiguous. It also says the FTC has acted against ad agencies for helping create deceptive ad content. The guide is informal staff guidance with no safe harbor, and this is not legal advice.

- 7. Do you fix existing reputation problems? New visibility sits on top of what already exists. If an outdated or negative page ranks for your name or your category, it can be the page an assistant reads. Ask whether the firm checks your current search results and AI answers first, and what it can and cannot change. Our guide on what to ask a thought leadership agency covers the same issue for authority work.

- 8. Is this a tool subscription or a service? Some offers are software with a sales layer. Ask who reads the output, who decides what to change, and whether a named analyst is accountable. A dashboard login is not a service.

- 9. What are the contract and pricing structure? Ask for scope in writing, the term, how to exit, who owns the content and accounts created for you, and what triggers each charge. Be careful with long lock-ins and with fees that rise with no change in scope. Compare structures, such as retainer, project or per-deliverable, before comparing totals.

- 10. What proof can I verify? Look for public examples you can open, a sample report, a written method and references you can call. Treat a before-and-after claim as unproven unless it shows the prompt, the assistant, the date and the number of runs.

Scorecard

Score each firm from 0 to 2 on every row, where 0 is a weak answer, 1 is partial and 2 is a strong answer in writing. Compare totals only after you have read the weak-answer column, because one serious miss on row 4 or row 6 can outweigh a high total.

• 1. Deliverables

  A strong answer

  A written list with quantities or definitions, owners and dates

  A weak answer

  'Full-service optimization,' no list

• 2. Measurement

  A strong answer

  Baseline, named prompts and assistants, stated cadence, accuracy and sources tracked

  A weak answer

  A single score or screenshot with no method

• 3. Answer variance

  A strong answer

  Repeated runs, dated results, patterns reported

  A weak answer

  One run presented as the answer

• 4. What is not promised

  A strong answer

  Says plainly that citations, rankings and traffic are not guaranteed

  A weak answer

  Guarantees an AI result

• 5. Writing and approval

  A strong answer

  Named process, your approval before anything runs, compliance step where needed

  A weak answer

  'Our team handles it'

• 6. Coverage and disclosure

  A strong answer

  Outlets named, paid placements identified and labeled before you approve

  A weak answer

  Label avoided, outlets secret

• 7. Existing problems

  A strong answer

  Checks current results and AI answers first and says what it can and cannot fix

  A weak answer

  No look at what exists today

• 8. Tool or service

  A strong answer

  Named analyst accountable for actions and reports

  A weak answer

  Software login sold as a service

• 9. Contract and pricing

  A strong answer

  Scope, term, exit and ownership in writing

  A weak answer

  Long lock-in, vague scope

• 10. Proof

  A strong answer

  Public examples, sample report, documented method

  A weak answer

  Unnamed clients, untraceable screenshots

Red flags

- Guaranteed rankings or citations. Rankings, AI mentions and citations depend on systems and people the vendor does not control. Google's own documentation says indexing and serving are not guaranteed.

- 'Proprietary AI' with no explanation. If a firm cannot describe in plain words what the system does, what data it uses and what a human checks, assume the label is marketing.

- No written terms. If scope, deliverables, term and exit are not on paper before you pay, there is nothing to hold anyone to.

- Undisclosed sponsored placements. Paid content that is not clearly labeled creates risk for you as the advertiser, and the FTC's guide says agencies that help create deceptive ads can be acted against.

- A secret method that contradicts public documentation. Ask the firm to show where the documentation supports the claim.

- Reports with no method. Charts with no prompts, dates or run counts cannot be checked.

- No approval step. If you cannot see and approve final copy, do not sign.

What Reputation Resolutions does

We will say plainly what we offer so you can score us on the same sheet. Reputation Resolutions has been in business since 2013, is A+ BBB accredited, is a Google Partner and has served clients in 40+ countries. We started in reputation work, so we check what a search for your name and category returns before we build, because new visibility on top of a damaged first page is wasted effort. This is analyst-led work, not software that does SEO for you.

Our starting point is a free AI visibility audit. An analyst runs a fixed set of prompts across ChatGPT, Gemini, Perplexity and AI Overviews and reports what each says about you. After that, we run a monthly prompt panel so you can see changes over time. On-site and off-site work is scoped in writing with named deliverables. For the full service description, see our AI SEO page, and for the technical background see AI search optimization, answer engine optimization and LLM SEO. If you want to do part of it yourself, start with our GEO checklist.

Guaranteed featured articles are a separate offer, described on our PR for AI search page. After you approve final copy, the article is published on an outlet named in writing, or one of the same tier, within the window agreed in writing, and you pay only after publication. Sponsored pieces are labeled the way each outlet labels them. That guarantee covers the publication of an article. It is not a guarantee that any AI assistant will cite it, and nothing we sell guarantees AI citations, mentions, rankings or traffic.

How to run the process

Send the ten questions to each shortlisted firm in writing and ask for the scope and contract terms as documents. Fill in a scorecard for each firm, open the proof they offer and check anything you can verify yourself. If your field has advertising or professional rules, have your counsel read the terms. A firm that answers clearly, in writing, and is comfortable with the weak-answer column is usually safe to take to the next step.

If you take away one thing, make it this: the quality of an agency shows up in what it puts in writing before you pay. Specific, checkable terms beat confident promises every time.