How do you choose an SEO agency for AEO visibility?

To choose an SEO agency for AEO visibility, put four tests to it before you talk about scope or price, because each one is something a genuine practice can demonstrate in a first call and a repackaged one cannot. Most buyers arrive at this question already holding an SEO contract, and the honest answer is that some SEO agencies can do this work well and most cannot yet. The tests below tell you which kind you have.

Ask them to name the schema types they would add to your pages. An agency doing this work can say FAQPage, Article, Organization and BreadcrumbList without pausing, because structured data is how a machine reads what a page is claiming. Ask them to show you an AI answer, from any engine, that names one of their clients, with the date it was captured. Ask which engine each of their clients is weakest on, which is a question that only has an answer if somebody measured the engines separately. And ask what they would change on your pages in the first month, because an answer built entirely from backlinks and off-site work is the old playbook wearing a new label.

The reason those tests bite is that AI citation and Google ranking have come apart. ConvertMate's GEO Benchmark 2026 found that 83% of AI Overview citations point to pages outside the organic top 10, and that 68.7% of cited pages use a logical heading hierarchy. An agency that has only ever optimised for position is optimising for the wrong half of that finding, and it will keep reporting rankings that no longer predict whether an engine quotes you.

One warning about a promise that sounds reassuring and is not: an SEO agency that offers to guarantee AI citations is telling you it does not understand the mechanism. The same goes for a single blended "AI visibility score" with no per-engine breakdown underneath it. Both are covered in more detail in the five questions further down this page.

Should SEO and AEO sit with one agency or two?

You should keep SEO and AEO with one agency if you can find one that genuinely does both, and split them only when you cannot. The work overlaps heavily at the foundation. Crawlability, site structure, entity consistency and content quality serve Google ranking and AI citation at the same time, so two vendors working the same pages duplicate effort and eventually disagree about who owns the site.

Splitting has a real cost that buyers underestimate: nobody is accountable for the whole picture. When AI citations fall and rankings hold, or the reverse, two vendors each have a defensible story about why it was not them. You also end up running two measurement systems that do not reconcile, and paying for weekly calls to keep them from undoing each other's changes.

Splitting is defensible in two situations. The first is an SEO relationship that is working and that you do not want to disturb, where a specialist can take AI visibility as a separate workstream with a clear boundary: they touch content structure and extractability, the incumbent keeps technical SEO and paid search. The second is scale, where an in-house team already owns SEO and wants outside help only on the AI side. In both cases, write down which vendor owns page-level content changes before you start, because that is the exact seam where the fight happens.

Why AEO agencies can't be evaluated like SEO agencies

AEO agencies can't be evaluated like SEO agencies because the filters you would normally reach for do not exist yet. The usual way to vet a marketing agency — check their years in business, their case studies, their rankings — barely works for AEO, because the category is roughly two years old. Almost no one has a long track record, so "established" isn't an available filter. That creates a market where any SEO shop can rebrand as an "AEO agency" overnight, and a buyer has no easy way to tell a genuine practice from a repackaged one.

So the evaluation has to shift from credentials to method. The right questions aren't "how long have you done this" but "how exactly do you measure it, what can you show me, and where do the citations actually come from." The criteria below are built around the things a real practice does and a repackaged one can't fake.

The criteria that actually matter

Six criteria do most of the sorting. They are arranged below as a table because the warning sign is usually easier to recognise than the good answer, and because a buyer sitting in a pitch needs something they can check against in real time rather than a philosophy. Each row is a claim you can test in a single question.

Criterion	What a real AEO practice does	Warning sign
Measurement	Measures all four engines (ChatGPT, Google AI Overview, Perplexity, Claude) separately, query by query, across repeated runs	Reports one blended "AI visibility score," or only checks ChatGPT
Evidence	Shows you your actual data — the queries where a competitor is named and you aren't — before pitching	Leads with promises and generic decks, no firm-specific data
Where the work happens	Fixes your own pages, where 73–89% of AI citations originate	Talks mostly about backlinks and off-site tactics borrowed from SEO
Honesty	States plainly that citations are influenced, not guaranteed	Guarantees citations or specific placements
Per-engine literacy	Knows ChatGPT leans on Bing, Claude on Brave, Perplexity on its own index	Treats "AI" as one undifferentiated thing
Conflict policy	Works with one client per competitive set, so they're not optimizing your rivals against you	Will take every firm in your market

Question 1 — Do they measure all four engines, separately?

Your visibility is not one number — it is four, one per engine, and they rarely agree. A firm can lead three engines and be invisible on the fourth, usually for a single fixable reason. An agency that reports a single blended score, or only checks ChatGPT, is hiding the engine-specific gaps that are the entire point of the work. Ask to see how they report — if it isn't broken out by engine and by query, they're measuring the wrong thing.

The single fixable reason is usually more mundane than buyers expect. ChatGPT's web results lean on the Bing index, so a company that is thin in Bing can rank normally on Google, Perplexity and Claude and still be absent from ChatGPT across an entire category. Our study of pharmaceutical process skid fabricators found exactly that pattern: the two most-cited firms in the clean-in-place category led three engines across nearly every query and disappeared on ChatGPT across almost all of them. A blended score would have shown those firms as healthy. The per-engine view showed a whole lane of queries recoverable by fixing one thing.

Question 2 — Can they show you data, or just promises?

An agency that can show you data rather than promises is the fastest filter available to you, and the one most firms fail. A real practice can usually show you your own situation before you sign — the specific queries where AI names a competitor instead of you — because they've run your market. Data depth is what separates a practice that has actually measured the landscape from one selling a generic service. If a prospective agency can only talk in generalities and can't put a single firm-specific finding in front of you, they haven't done the measurement that the work depends on.

What you are looking for is specific enough to describe. A named competitor, a named engine, a buyer query in the words your customers actually use, and the date it was captured. Anything softer than that is a slide, not a finding. Be wary too of screenshots with no timestamp: engine answers move week to week, and an undated capture could be from a run six months ago that no longer reproduces. A practice confident in its method will happily re-run a query in front of you. Apply the same scepticism to the answer itself, because an engine will repeat a vendor's own ranking of itself without marking where the claim came from.

Question 3 — Do they fix your pages, or sell you backlinks?

Across measured categories, 73–89% of AI citations point to companies' own pages rather than directories or third-party sites. That means the primary lever is your own content — its structure, specificity, and language. An agency whose plan is mostly backlink-building and off-site SEO tactics is applying the old playbook to a problem it doesn't fit. The work that moves AI citation happens largely on your own pages; make sure that's where their effort goes. (For the underlying mechanics, see how AEO differs from SEO.)

Page-level work is concrete, so a capable agency can describe it before it has touched your site. Rewriting a heading into the question a buyer actually asks. Putting a direct answer in the first sentence under that heading rather than three paragraphs down. Adding a comparison table where you currently have prose. Making sure the claim an engine would want to quote sits in a sentence that still makes sense when it is lifted out of the page. Stating specifications, standards and configurations explicitly instead of describing them as bespoke solutions. If a prospective agency cannot name work of that shape for your pages, it is planning to sell you something else.

Question 4 — Are they honest about what can't be guaranteed?

An honest agency will tell you plainly that nothing here can be guaranteed, because AI citation is influenced rather than controlled. The engines make the final call and they change their behaviour without notice. Any agency that guarantees citations or specific placements is either misunderstanding the mechanism or overselling it. A trustworthy practice is explicit about this: they remove the structural reasons you're skipped and improve your odds, and they report honestly including where they haven't moved your position yet. Guarantees are a warning sign, not a reassurance.

There is a version of this that is easy to miss, because it sounds like confidence rather than a promise. An agency that shows you only the queries where you improved, and quietly drops the ones where a competitor took your place, is making the same mistake with better manners. Ask what their reporting looks like in a bad month. A practice that has an answer to that question has run enough campaigns to have had one, and a practice that does not is either new or editing the picture. Neither is disqualifying on its own, but you want to know which you are buying.

Question 5 — Will they work with your competitor too?

Ask whether they will work with your competitor too, and treat a vague answer as a no. Because AI answers name a short list, helping two competing firms in the same market is a conflict — the agency would be optimizing rivals against each other. A serious practice works with one client per competitive set per market. If a prospective agency is willing to take every firm in your city, ask what happens to your position when they sign the firm down the street.

Get the answer into the contract, and define the boundary yourself rather than accepting theirs. "One client per industry" is close to meaningless for a firm that competes in three categories in two cities. What you want named is the competitive set: the companies that appear alongside you when an engine answers the queries you care about, which is a list the agency should already be able to produce from its own measurement. Agree what happens if one of them approaches the agency later, and agree it before you sign, because the conversation is much harder once the retainer is running.

What should an AEO engagement cost, and what changes the price?

An AEO engagement costs between $3,000 and $15,000 a month across most of the market in 2026. Mid-market programmes cluster at $3,000 to $8,000 a month, and enterprise scopes carrying heavy off-site work start near $15,000, per the 2026 AEO and GEO pricing guide from Digital Elevator, checked 16 September 2026. Four things move a quote within that range, and all four are worth asking about before you compare two proposals.

Scope	Typical monthly range, 2026	What that usually buys
Mid-market programme	$3,000 to $8,000	A defined page set, per-engine measurement, and the on-page work to fix it
Enterprise programme	From about $15,000	Large page counts, heavy off-site work, frequent prompt auditing

Market ranges, not our rates. Both figures are from the Digital Elevator 2026 pricing guide linked above, checked 16 September 2026. Pricing in a two-year-old category moves quickly, so treat these as accurate on that date.

The first is the number of pages in scope, because the work is per page and a hundred-page site is not five times a twenty-page site. Then whether off-site work is included, which is the expensive half and the half nobody can guarantee. How often the prompt set is re-run, because measurement is a recurring cost rather than a one-off. And whether the retainer includes the writing, which is where most of the labour actually sits: an agency that measures and hands you a list is selling a smaller thing than one that measures and then rewrites the pages.

Treat a very low number as information rather than a bargain. Our own read of this market, and it is a judgement rather than a published figure, is that below roughly $1,500 a month there is not enough labour in the scope to do the work described on this page, so what is being sold is usually a tracker subscription with a report attached. That is a real product and it is worth its price, but it is not an AEO programme, and the comparison of AEO tools is the right page to read before paying agency rates for it.

Price is also a weak quality signal here, weaker than it would be in an established category. AEO is roughly two years old, so a high retainer buys you no evidence of competence on its own, and the five questions above remain the better filter. What the number is genuinely useful for is checking that the scope is honest: an agency quoting mid-market money for enterprise-sized promises has either not costed the work or is not planning to do it.

You will notice we do not publish our own figure. Scope, page count and how much of the writing we take on change it enough that a headline number would mislead more than it helped, so we quote after the assessment rather than before it.

What should be in the contract before you sign?

The contract should name six things: the prompt set, the raw measurement history and the format you receive it in, who may edit your pages, the competitive set, what a report looks like in a month where you lost ground, and what you keep if the relationship ends. All six are cheap to agree before a retainer starts and expensive to argue about afterwards, because the measurement is only worth something as an unbroken series and the pages are yours either way.

Start with the prompt set, since it is the asset the rest of the work is built on. A citation series stays comparable only while the wording stays fixed, so an agency that rewrites prompts between reports has broken the comparison that shows whether anything improved, and one that will not hand the list over has made your history unportable. Ask for the prompts in a file you keep, and agree that the list grows by addition rather than by editing what is already in it. The design behind a usable prompt set is covered in our guide to tracking AI visibility across the four engines.

Then ask for the runs themselves rather than for access to the dashboard that displays them. A decline is only visible as a difference between runs, so a programme that changes hands with no exports restarts from no baseline, and the first quarter goes on rebuilding a picture you have already paid for once. A line specifying per-run exports, with the prompt, the engine, the date and every cited URL, costs an agency nothing if it is measuring properly. Our methodology for measuring citation decay between runs sets out what those exports need to hold to still be readable a year later.

Term	What to write down	What it prevents
Prompt set	The exact prompts, engine by engine, in a file you receive at the reporting cadence	A rewritten prompt that resets the series and hides a decline
Measurement history	Per-run exports carrying the prompt, the engine, the date and every cited URL	Losing the baseline when the engagement or the agency changes
Page access	Who edits, who approves, and whether changes go through staging	Two vendors overwriting each other, or an unreviewed claim going live
Competitive set	The named companies that appear beside you in the answers, taken from the agency's own measurement	A conflict arriving later under a vague "one client per industry" clause
Reporting in a bad month	That reports carry the prompts where you lost ground, not only the wins	A report edited into a success story
Exit	What you keep: the prompts, the history, the page changes and any schema added to your site	Paying for work that leaves with the agency

An agency that resists these terms has told you something useful before you have spent anything. None of them asks for a guaranteed outcome, and none is unusual in an older category, where a contract that did not say who owns the tracking or who may edit the site would look careless. AEO is young enough that the equivalent clauses are often missing, which is a reason to write them yourself rather than evidence that they do not matter. Whether this work belongs with an agency at all is a separate question, and our comparison of an agency against a tool and an in-house team is the page for that one.

Who should be allowed to edit your pages?

Page access is the seam where the friction usually happens, because this work is page editing and somebody else may already hold the keys. Write down who edits, who approves, and whether changes go through staging, particularly if an incumbent SEO agency is working the same templates. The clause protects you in the other direction too: an agency that can publish to your site unreviewed can put a claim on a commercial page that nobody in your company has checked.

The arrangement that works in most companies is that the agency drafts, somebody on your side approves, and the change ships through the same review path as any other content. Ask what happens when a fix is urgent, because that is the moment the path gets skipped, and ask who holds the credentials once the engagement ends. An agency that wants direct publishing rights from the first week is not disqualified by that, but it should come with a named approver on your side and a log of what changed and when. A firm doing this work at any scale already keeps that log, because it needs to know which change preceded which movement in the measurement.

Frequently asked questions

Related guides

• AEO agency vs. tool vs. in-house — which delivery model fits, compared side by side.
• Best AEO tools in 2026 — the tool side of the comparison set, ranked.
• AEO vs. SEO — why the old agency-vetting playbook doesn't transfer.
• How to track AI visibility — measure where you stand before you hire anyone.
• The 7 SIGNALS dimensions and the research methodology behind them.