What Does a GEO Agency Do? The 2026 Guide to Generative Engine Optimisation Agencies

Two years ago, "GEO agency" was not a phrase anyone searched for. Today it is a real, growing query with real commercial intent behind it — businesses watching their hard-won organic traffic get intercepted by AI Overviews and ChatGPT, and quite reasonably asking: who do I hire to fix this?

This guide answers that question properly. Not "what is GEO" — we have a complete explainer on what Generative Engine Optimisation is if you need the foundations — but the practical, commercial stuff. What a GEO agency actually delivers. What it costs in the UK. How to tell a genuine specialist from someone who swapped "SEO" for "GEO" on their homepage last Tuesday. And how to know whether you need one at all.

Why "GEO agency" is suddenly a search term

The deal between websites and search engines is being rewritten. For twenty-five years you wrote a page, Google ranked it, someone clicked, and you got the visit. Now an AI engine reads the question, pulls sentences from across the web, synthesises one answer, and — if you are lucky — names you as a source. The user may never click through at all.

The shift a GEO agency exists to address

60.7%

ChatGPT's share of AI search

Stackmatix AI search market analysis, January 2026

1.5B

Monthly users seeing AI Overviews

BrightEdge — AI Overviews now appear on 18% of all Google searches

25%

Forecast drop in traditional search by 2026

Gartner — as AI engines absorb informational queries

That is the backdrop. Informational queries — the long tail that fed blogs and resource pages for two decades — are migrating into answers first. Google's own AI Mode now has tens of millions of daily users and produces zero clicks on the overwhelming majority of sessions. When the answer becomes the destination, being inside the answer becomes the job. That job is what a GEO agency does.

What is a GEO agency?

A GEO agency is a marketing firm that specialises in getting brands surfaced and cited by generative AI systems — large language models with web retrieval, like ChatGPT, Perplexity, Google AI Overviews, Google AI Mode, Gemini, Microsoft Copilot and Claude.

You will see the service sold under several names. They overlap more than they differ:

• GEO agency — Generative Engine Optimisation. The umbrella term, rooted in the 2023 Princeton-led research paper that coined it.
• AEO agency — Answer Engine Optimisation. Practitioner-led, tends to emphasise on-page formatting for direct answer extraction.
• AI SEO agency — a softer rebrand for SEO firms adding AI-visibility work; sometimes broad, sometimes just SEO with a new label.
• LLM optimisation / generative search agency — usually the same thing, occasionally extending into how models are trained or how retrieval-augmented systems ingest your content.

Use whichever your team understands. What matters is whether the agency actually does the work below — or just talks about it.

What a GEO agency actually does

A good GEO agency does six distinct jobs. Cut any one of them and the others underperform — which is exactly why a homepage that lists only "AI content" or only "schema" should make you cautious.

Here is how those six jobs stack into a single engagement.

                  ┌──────────────────────────────┐
   THE GOAL  ▸    │  Your brand cited by name     │
                  │  inside the AI answer          │
                  └───────────────▲───────────────┘
                                  │
   ┌──────────────────────────────┴──────────────────────────────┐
   │                  WHAT A GEO AGENCY BUILDS                     │
   ├───────────────┬───────────────┬───────────────┬──────────────┤
   │ 1 AUDIT       │ 2 ENTITY      │ 3 TECHNICAL   │ 4 CONTENT    │
   │ baseline      │ who you are,  │ schema, crawl │ rewritten to │
   │ visibility    │ made          │ access and    │ be extracted │
   │ and gaps      │ unambiguous   │ llms.txt      │ and quoted   │
   ├───────────────┴──────┬────────┴───────┬───────┴──────────────┤
   │ 5 OFF-SITE AUTHORITY │ 6 MEASUREMENT  │                      │
   │ Reddit, Wikipedia,   │ citation share,│  ◀ iterate monthly   │
   │ YouTube, PR, reviews │ AI referrals,  │     on what moves     │
   │ where engines look   │ brand lift     │                      │
   └──────────────────────┴────────────────┴──────────────────────┘

The six jobs, in the order a good agency runs them

1. 1

   Audit your current AI visibility

   Run your top commercial queries through every major engine and record where you appear, where competitors appear, and which sources get cited. This is the baseline everything else is measured against — skip it and you are flying blind.

2. 2

   Lock down the brand entity

   Confirm Organization schema is correct, entity data is consistent across Wikipedia, Wikidata, LinkedIn, G2 and Crunchbase, and your name, URL and description match everywhere. AI engines disambiguate brands by entity consistency before they will confidently cite you.

3. 3

   Fix schema and technical foundations

   Layer FAQPage, Article, Organization and Breadcrumb structured data, open retrieval crawlers in robots.txt, publish llms.txt, and make sure body text is server-rendered. Pages with FAQ schema are roughly 3.2 times more likely to appear in AI Overviews.

4. 4

   Restructure content for extraction

   Add statistics with named sources, quote credible third parties, lead each section with a one-sentence answer, and use question-shaped headings. Princeton's research found adding statistics lifted visibility by 41% and citing authoritative sources by up to 115% for lower-ranked pages.

5. 5

   Build off-site authority

   Brief PR on quotable data, get real experts active on Reddit and LinkedIn, earn reviews on G2 and Trustpilot, and pursue legitimate Wikipedia and trade-press coverage. This is where citation share actually compounds — and where most in-house teams run out of road.

6. 6

   Close the measurement loop

   Set a weekly citation-tracking cadence, segment AI referral traffic in GA4 as a custom channel group, watch branded-search lift, and iterate. GEO without measurement is just expensive hope.

Notice how much of that list lives off your website. That is the part newcomers underestimate. The deep technical work matters — our guides on schema markup for GEO, how to get cited in ChatGPT and what llms.txt is go deep on it — but the single largest determinant of citation share for any competitive query is brand entity strength: how often credible third parties mention you on the sources engines retrieve from.

GEO agency vs SEO agency vs AEO agency

The honest answer: these overlap by about 80%, and the best partners do all three. But the emphasis differs, and knowing the difference stops you from overpaying for a relabelled service.

The practical takeaway: GEO is not a replacement for SEO — it layers on top of it. Most AI engines retrieve from a traditional search index before they generate an answer (ChatGPT and Copilot lean on Bing; AI Overviews use Google's index; Perplexity blends its own crawl with partnerships). If you are not retrievable, you are not citable. That is why a credible GEO agency will look hard at your SEO foundations before promising anything — and why "AEO" and "AI SEO" mostly describe slices of the same underlying work. If you want the full mechanics, our complete guide to ranking in Google's AI Overviews and AI Mode covers the Google side in depth.

Agency, in-house, or freelancer?

You have three ways to get GEO done. None is universally right.

Most brands end up blending them: an agency or consultant sets strategy and measurement, while an in-house marketer runs day-to-day execution. The work that genuinely needs an agency is the off-site authority building — PR, Reddit, Wikipedia, reviews, data studies — because that is relationship-heavy, slow, and hard for a single internal hire to sustain.

Do you actually need a GEO agency?

Not every business needs to hire one this quarter. Here is the honest decision tree.

Should you hire a GEO agency now?

Are buyers researching your category with AI tools?

High-consideration B2B, SaaS or professional services

↓

Yes — start now

Your buyers compare and research heavily before contact. Being absent from AI answers is a slow leak of qualified demand.

Competitive consumer category with lots of research

↓

Yes — paired with SEO and PR

GEO works, but only on strong foundations. Make sure the agency joins it up with search and brand work.

Purely local, walk-in trade

↓

Not the priority yet

Local SEO, Google Business Profile and reviews will move the needle further for now. Revisit in 6–12 months.

No crawlable site or organic authority at all

↓

Fix SEO foundations first

If engines cannot retrieve you, they cannot cite you. Sort technical SEO before spending on GEO.

A free way to pressure-test the decision before you spend anything: run your most important queries through the major engines yourself, or use our free AI Visibility Checker to get a structured baseline. If you are already being mentioned and just want to do better, an agency has obvious leverage. If you are completely invisible, find out why first — it is often a retrieval problem an SEO fix solves.

How much does a GEO agency cost?

GEO pricing in 2026 has roughly stabilised into three shapes. The ranges below are typical UK market figures we see — treat them as a map, not a quote, because scope swings the number more than anything.

Typical UK GEO agency pricing in 2026

Observed market ranges, not guarantees. Scope — engines, markets, content volume and whether SEO is included — moves these more than the agency's logo does.

AI Visibility Audit

£1,500–£5,000

One-off · 2–3 weeks

A clear baseline and a prioritised fix list before you commit to anything ongoing.

• Multi-engine visibility baseline
• Competitor and citation-source analysis
• Technical and schema gap report
• Prioritised 90-day action plan

Most common

Monthly GEO Retainer

£1,500–£6,000/mo

Ongoing · 6-month minimum

Most SMBs and mid-market brands that want steady, measured progress across engines.

• Schema and technical execution
• Content restructuring and new pages
• Entity and off-site authority work
• Monthly citation-share reporting

Enterprise / Programme

£6,000–£20,000+/mo

Ongoing

Multi-brand, multi-market or highly competitive categories needing PR and data studies.

• Multi-market, multi-engine tracking
• Dedicated PR and digital-PR
• Original data and research studies
• Joined-up SEO + GEO strategy

What actually drives the number:

• Scope of engines and markets. Tracking five engines across three countries costs more than one engine in one market.
• How much off-site work is included. Digital PR and data studies are the most expensive — and most effective — line item.
• Whether SEO is bundled. A joined-up SEO and GEO retainer costs more but usually outperforms two siloed ones.
• Content volume. Restructuring ten priority pages is a sprint; an ongoing publishing programme is a retainer.

One caution: be wary of anything priced suspiciously low. Genuine off-site authority work is labour-intensive. A £400-per-month "GEO package" is almost always automated schema injection and a monthly screenshot — not the entity and authority work that actually moves citations.

How to choose a GEO agency

This is a young field, which means the gap between the best and worst agencies is enormous. Use the questions below in the first call, then score each shortlisted agency on the six dimensions that actually predict results.

12 questions to ask before you sign

• ✓Will you run an AI visibility audit before proposing scope — or are you pitching blind?
• ✓Which engines do you track, and how — real prompts, or a single tool's dashboard?
• ✓How do you measure success beyond screenshots of good answers?
• ✓What does your off-site authority work actually involve — PR, Reddit, Wikipedia, reviews?
• ✓How do you handle the brand-entity layer (Wikidata, schema, consistency)?
• ✓Do you join GEO up with our SEO, or treat them separately?
• ✓Can you show citation-share movement for a past client (even anonymised)?
• ✓What do you do that is different for Perplexity versus AI Overviews versus ChatGPT?
• ✓How will you report, and how often?
• ✓What is realistically achievable in 90 days, and what takes longer?
• ✓Who actually does the work — and is any of it just AI-generated at scale?
• ✓What would make you tell us GEO is not the right spend right now?

That last question is the tell. An honest agency will happily talk you out of work that will not pay off. Now score what you hear:

The GEO agency scorecard

Rate each shortlisted agency 0–100 on these six dimensions. The bars show roughly how much weight we would put on each when the difference between agencies is this wide.

• Strategy clarity90/100

  Did they audit and diagnose before pitching scope, or lead with a package?

• Measurement transparency90/100

  Can they show real citation share and AI referrals — not cherry-picked screenshots?

• Off-site authority capability85/100

  Do they actually run PR, Reddit, Wikipedia and reviews, or only touch your site?

• Technical and schema depth75/100

  Schema, crawl access, llms.txt and server-rendering competence.

• Joined-up with SEO and PR80/100

  GEO on weak SEO foundations underperforms. Do they connect the two?

• Plain honesty95/100

  Do they refuse to guarantee citations and tell you what GEO cannot do?

Red flags: the risks of hiring the wrong agency

Most GEO disappointments are not bad luck — they are predictable failure modes. Here are the ones to manage in any engagement, and how much they should worry you.

GEO engagement risks to watch for

Likelihood and impact based on common patterns in a young, hype-prone market.

High Medium Low

Agency guarantees ChatGPT citations or AI rankings

Likelihood · HighImpact · High

Nobody credible can promise this. It signals either naivety or a sales script. Walk away.

Optimising for one engine only

Likelihood · HighImpact · High

ChatGPT, Perplexity and AI Overviews use different retrieval stacks. A single-engine win does not transfer.

AI-generated content at scale with no original data

Likelihood · MediumImpact · High

Engines down-rank obvious AI slop and reward sourced human commentary. This can actively hurt you.

No measurement baseline taken at the start

Likelihood · MediumImpact · High

Without a day-one baseline you cannot prove the work did anything. Insist on the audit first.

Blocking retrieval crawlers by mistake

Likelihood · LowImpact · High

A misconfigured robots.txt can remove you from answers entirely. A competent agency checks this on day one.

No connection to your SEO or PR

Likelihood · MediumImpact · Medium

Siloed GEO leaves the biggest authority levers untouched. Look for joined-up thinking.

How to tell your GEO agency is working

Because there are no rankings to screenshot, GEO measurement trips a lot of people up. A good agency reports across three layers, and you should expect to see all three.

1. Citation tracking. Tools such as Profound, AthenaHQ, Peec and Otterly ping the engines with your tracked queries weekly and report whether you appear and which competitors do. This is your share-of-voice equivalent. Our guide to measuring AI search visibility without guessing walks through the stack.
2. AI referral traffic. GA4 will show growing referrals from chatgpt.com, perplexity.ai, gemini.google.com and copilot.microsoft.com. Segment them deliberately — here is how to track AI traffic in GA4 with custom channel groups.
3. Branded-search lift. GEO tends to produce a delayed rise in branded organic searches and direct traffic as AI users follow up on your name. It is the slowest signal and often the most commercially meaningful.

What the first 90 days should look like

A competent engagement front-loads the fixable wins and sets honest expectations for the slow ones.

A realistic first-90-days timeline

1. 1

   Days 1–14 · Audit and baseline

   Multi-engine visibility baseline, competitor and citation-source analysis, technical and schema gap report. Nothing is optimised yet — you are measuring the starting line.

2. 2

   Days 15–30 · Technical foundations

   Schema rollout, robots.txt and crawler access, llms.txt, server-rendering fixes. These are the wins AI crawlers can pick up within days to two weeks.

3. 3

   Days 30–60 · Entity and content

   Entity consistency across Wikidata, LinkedIn, G2 and your schema; content restructured for extraction on priority pages. Early citation movement sometimes shows here.

4. 4

   Days 60–90 · Off-site authority

   Digital PR, data studies, Reddit and review work begin to land. Citation share starts to move — but this is the compounding layer that keeps paying off well beyond 90 days.

If an agency promises a transformed citation profile in week two, they are overselling. The technical layer is fast; the trust layer compounds over months. Both are real — they just run on different clocks.

FAQ

What does a GEO agency do?

A GEO (Generative Engine Optimisation) agency improves how often and how well your brand is cited inside AI-generated answers from ChatGPT, Perplexity, Google AI Overviews, Gemini and Claude. The work splits into six jobs: auditing your current AI visibility, strengthening your brand entity so engines understand who you are, fixing schema and technical foundations so you are retrievable, rewriting content so it gets quoted, building off-site authority on the third-party sources AI engines trust, and measuring citation share over time. Where an SEO agency competes for a click on the results page, a GEO agency competes for a sentence inside the answer.

How much does a GEO agency cost in the UK?

In 2026, a one-off AI visibility audit typically runs £1,500 to £5,000, an ongoing GEO retainer for a small or mid-sized business sits around £1,500 to £6,000 per month, and enterprise programmes start near £6,000 and climb past £20,000 per month. Specialist consultants charge roughly £600 to £1,200 a day. Price is driven by scope — how many engines and markets you track, how much content and off-site authority work is included, and whether the agency also handles your underlying SEO.

What is the difference between a GEO agency and an SEO agency?

An SEO agency optimises for ranking positions and clicks in traditional search results. A GEO agency optimises for citations inside AI-generated answers, where the unit of victory is being quoted rather than ranked. The two overlap heavily — both need crawlable, fast, well-structured pages — but GEO adds schema density, statistics and quotable formatting, brand-entity work, and off-site authority on sources like Reddit, Wikipedia and YouTube. The strongest setup in 2026 is a joined-up agency that does both, because weak SEO foundations make GEO much harder.

Do I need a GEO agency, or can I do GEO in-house?

You can absolutely start in-house — running your top queries through ChatGPT and Perplexity, adding schema, and fixing obvious gaps costs nothing but time. You typically bring in a GEO agency when AI search is commercially material to your category, when you need multi-engine measurement, or when the off-site authority work (PR, Reddit, Wikipedia, reviews) outgrows what one marketer can run. Most brands blend the two: an agency sets the strategy and measurement, the in-house team executes day to day.

How do I choose a GEO agency?

Score every shortlisted agency on six things: strategy clarity (did they audit before pitching?), measurement transparency (can they show real citation share, not screenshots?), off-site authority capability, technical and schema depth, whether they join GEO up with SEO and PR, and plain honesty about what is and is not possible. The single biggest red flag is any agency that guarantees ChatGPT citations or specific AI rankings — nobody credible can promise that.

How long does it take a GEO agency to get results?

Faster than SEO at the technical layer, slower at the trust layer. Schema, llms.txt and on-page rewrites can be picked up by AI crawlers within days to two weeks. Citation share — which depends on brand entity strength across Reddit, Wikipedia, YouTube and the trade press — compounds over months. A realistic timeline is technical wins inside 30 days, citation-share movement inside 90 days, and structural lift over 6 to 12 months.

Can a GEO agency guarantee ChatGPT or AI citations?

No. AI engines personalise responses, re-roll answers between identical prompts, and update their retrieval and models constantly, so guaranteed citations are not something any honest agency can promise. What a good agency can do is improve the conditions that make citations far more likely — clean entity data, strong schema, quotable content, and a credible off-site footprint — and then measure the change in citation share over time.

Is GEO worth it for small businesses and B2B?

It is most worth it where buyers do a lot of research and comparison before they get in touch — which describes most B2B, SaaS, professional services, and considered consumer purchases. If your category is already being explored through AI tools, being absent from those answers is a slow leak of demand. For purely local, walk-in trade with little online research, GEO is usually a lower priority than local SEO and reviews.

Where to start

If you are weighing up a GEO agency, do these three things first — they cost nothing and sharpen every conversation that follows:

1. Run your top ten commercial queries through ChatGPT, Perplexity and Google AI Overviews, and note where you appear and who shows up instead. Our free AI Visibility Checker structures this for you.
2. Validate your structured data with the free Schema Checker and add FAQPage and Article markup to your top organic pages.
3. Read the complete GEO playbook so you can tell strategy from sales patter on the first call.

And if you want a partner to run the audit, fix the foundations, build the off-site authority and close the measurement loop — honestly, with no citation guarantees and no jargon — that is exactly what we do at Qwestyon's GEO services. Start with an AI visibility audit and we will show you where you stand, where competitors are beating you, and what to fix first.

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The Author

Adam has been knee-deep in digital marketing for over seven years, mastering PPC, SEO, and now GEO for both B2B and B2C brands. As the brains behind Qwestyon, he has a knack for turning clicks — and citations — into conversions. When he is not building AI-search infrastructure for clients, you will find him passionately talking about his latest vegetable-growing triumphs or showing off his camera roll, which is 90% dog pics. In short, he knows his stuff — whether it is marketing or marrows.