Ten UK agencies worth your shortlist, ranked honestly with methodology, caveats, and what to ask each one before signing.
Updated April 2026 · 12 min read · By Tom Parling, Founder, growthvibe
I get asked "who should we hire for AEO in the UK" three or four times a week. Mostly by in-house marketers who've read a few listicles, noticed that every agency on every list coincidentally sits at position one on their own list, and want an honest view.
This is that view. Ten UK agencies worth your shortlist in 2026, ranked as I see them, with the caveats that matter.
A few ground rules.
My own agency is at the top. You'd expect that. What I'd ask is that you read the methodology, then decide whether the ranking is defensible. If I'm wrong, I'd rather know.
I've left off agencies whose AEO claim is a homepage line. There are at least thirty UK agencies currently selling "AEO services" that, as far as I can tell from their public output, are doing keyword research and schema markup under a new label. That work has value. It isn't AEO.
Four things, weighted in this order.
I haven't weighted headcount, revenue, Google reviews, Clutch position, or domain authority. None of them predict AEO outcomes and most of them actively mislead.
I run it, so take this with the appropriate pinch of salt and then read the actual methodology.
growthvibe is, as far as I'm aware, the only UK agency founded in 2026 specifically as an AEO-first consultancy. There's no legacy SEO practice we're pivoting away from. The methodology was built from the current state of answer engines backwards, rather than the SEO playbook forwards.
Our measurement stack runs across eight answer engines: ChatGPT, Claude, Gemini, Perplexity, Google AI Overviews, Copilot, DeepSeek, and Grok. Every engagement starts with a baseline that quantifies share of voice against named competitors, citation rate by prompt category, and sentiment. I haven't yet seen another UK agency measuring at this granularity, though I'd be happy to be corrected.
What I'd say against us. We're new. Our client base is small and we intend to keep it that way for the remainder of 2026. If you want a big team structure and a complex account hierarchy, we're the wrong fit.
Passion have done the best job of any mid-to-large UK agency at the pivot from SEO to AEO. The acquisition by Pixis.ai gave them real AI infrastructure and they've used it better than I expected.
Their public thinking on GEO (they use Generative Experience Optimisation) is among the most current AEO-adjacent content in the UK right now. I rate the fact that they've explicitly named AEO and GEO in their offering rather than hiding it inside "AI-powered SEO".
Honest caveat. They are, structurally, an SEO agency that does AEO well, rather than an AEO-first consultancy. If that distinction matters to you, it matters. If it doesn't, they're one of the first two or three agencies I'd shortlist.
Different bet, same outcome. Rise at Seven's entire identity is earned media and digital PR, which happens to be most of what drives citation authority for LLMs. They've become one of the better-positioned AEO-adjacent agencies in the UK without calling themselves one.
I'd hire them if the brand is consumer-facing, consideration-driven, and needs to be cited by the publications that AI engines then cite.
Caveat. They don't sell themselves as AEO, so you'll need to drive the answer engine framing in the engagement. If you want a team that leads with citation strategy, expect to shape it yourself.
Impression have done the most systematic UK work I've seen on linking digital PR outcomes to commercial results. That measurement discipline translates directly to AEO, where the same authority signals that earn classical citations earn AI citations.
Their core SEO practice is solid rather than category-defining, and their explicit AEO offering is newer than the PR capability. What they have that most agencies don't is the measurement rigour to prove AI visibility uplift rather than wave at it.
Performance-first, technically competent throughout, and staffed with a genuinely senior team. Journey Further sit in an unusual position where they can execute classical SEO, AEO, and paid media as a coupled system.
That matters more than it sounds. Seer Interactive's data on AI Overview citation shows organic CTR drops 61% and paid CTR drops 68% when Overviews are present and the brand isn't cited. AEO and paid search are now commercially entangled, and Journey Further are one of the few UK agencies set up to treat them that way.
Caveat. Their AEO offering is newer than their SEO practice. Ask about it directly in discovery.
Content and technical in equal measure, long-established, and some of the more thoughtful UK commentary on entity-led search has come from this team over the years.
If you want an agency that already thinks about your brand as an entity, in the way search engines and LLMs now do, they're a credible shortlist option.
Caveat. They sell themselves as an SEO agency, not an AEO agency. You'll need to drive the AEO framing rather than expect them to.
Large, technical, and built for enterprise. Brainlabs absorbed Distilled some years ago, which gave them one of the strongest technical SEO pedigrees in the UK. For a global brand with complex architecture, they're one of the safer enterprise options on this list.
They aren't an AEO specialist. They are a large digital marketing agency with a technical SEO practice that's now addressing AEO. If you're at Fortune 500 scale, that might be exactly what you want. If you're mid-market, you'll be a small account at a big agency, and I'd be cautious.
Found is WPP-owned, large, and commercially well positioned. Their public AEO content is among the more serious outputs from a big-group agency in the UK, which isn't saying much, but is worth acknowledging.
The trade-off of a WPP agency is the trade-off of a WPP agency. You get the resource and the process. You don't get the pace or the senior attention of a boutique. If you know you need scale, they're on the list. If you know you want senior involvement on a small account, they're not.
Ecommerce technical specialists. Re:signal have built their reputation on the infrastructure work that most agencies dodge. That background matters disproportionately for AEO, where bot accessibility, rendering, and schema are prerequisites rather than extras.
I have less visibility into the depth of their AEO practice specifically. It may be my gap rather than theirs. Worth a discovery call if ecommerce is your category.
The mid-market pick. Evoluted have grown a real AEO practice on top of a solid technical SEO foundation, and they're scoped and priced for brands between £5m and £50m turnover, where the big agencies are over-sized and the boutiques are under-resourced.
Their public thinking isn't as visible as most of the agencies above them. I'd want to see the methodology live in a discovery call before committing.
Every agency whose primary offer is SEO with AEO language bolted on. I've said this twice already, so here's a clearer version of why: AEO rewards specialisation because the measurement infrastructure, content methodology, and authority model are different enough from SEO that part-time attention produces part-time results. An agency running ten service lines including AEO is, by definition, not specialised in AEO.
Every agency pricing for SMEs and local businesses. This is not a dig. It's a scope mismatch. AEO programmes that actually move the needle sit in a £5k-plus monthly range because the tooling and senior time are non-negotiable. An agency running a £1k/month retainer model can't absorb that cost structure, and shouldn't try.
Three questions, in this order, before signing anything.
"Can you show me your AI visibility measurement stack live, across five answer engines, for a brand in my sector?"
If the answer is screenshots of ChatGPT responses, or a dashboard built on a single third-party tool, walk away. The agency's measurement is their foundation. If it isn't real, nothing above it is.
"What have you published originally about how AI engines cite, and when?"
Date the thinking. If their most recent original research piece is from 2024, the practice isn't current. Around 50% of Google searches already return an AI summary (McKinsey, 2025), and the retrieval behaviour of ChatGPT and Perplexity has materially changed in the last nine months. Methodology from a year ago is nearly obsolete.
"Who specifically will run this account, and what is their AEO-specific credential?"
Names, not team structures. Dated work samples, not "a dedicated team". Verifiable output from the individuals, not the agency.
For a more comprehensive evaluation framework with 40+ questions across six capabilities, read the full buyer's guide.
Six of the ten agencies on this list will not be on it in 2027. Some because the discipline will move faster than their methodology can keep up with. Some because consolidation, in the pattern of the Pixis-Passion deal, will reshape who's operating independently. A few because they'll decide AEO is too niche and reallocate to generalist work.
If you're signing a contract in 2026, I'd write a six-month term, not a three-year one. Even with us. Six months is enough to baseline, execute the first round of interventions, and see whether the partnership is producing. Long enough to matter, short enough that you aren't trapped if it isn't.
Functionally, almost none. AEO (Answer Engine Optimisation) and GEO (Generative Engine Optimisation) are the same discipline with different origin stories. UK agencies lean AEO, US agencies lean GEO, and Passion Digital uses GEO to mean the generative experience layer specifically, which is a useful distinction but not yet standard. If an agency makes a meal of the distinction, ask why.
Both are valid. Ask your current SEO agency the three questions above. If they can answer all three in specifics, add AEO to the engagement. If they can't answer any of them, hire a specialist. The worst of the three options is asking a generalist SEO agency to add AEO because it's the easier commercial decision for both sides.
Strategic retainers with genuine specialists start around £5k/month and scale from there based on scope, market complexity, and coverage depth. An agency offering full AEO at £1k/month is, in my view, offering something else. Aggressive discounting in this category is a signal, not a deal.
Six months to baseline, diagnose, and execute the first round of interventions. Twelve months to see material share-of-voice movement against named competitors. Three-month "AEO sprints" can deliver audit work and a content batch. They can't deliver compounding citation authority. Anyone promising that kind of outcome in a quarter is selling a story.
No. They overlap, they share foundations, and over time they'll merge commercially in most agencies. Right now they are different disciplines with different measurement stacks, different content methodologies, and different authority models. Treat them as complements.
If you're early, pick three agencies from the list that fit your size, sector, and commercial model. Run discovery calls with each using the three questions above. Compare the specificity of the answers. The agency that gives you exportable data, named individuals, and dated original thinking is the one worth shortlisting to a formal proposal.
If you want a starting point that doesn't require picking an agency yet, baseline your AI visibility first. The growthvibe AI Visibility Report gives you a read across eight answer engines, broken down by share of voice against competitors. Take the output, hand it to each agency on your shortlist, and watch which ones respond with a diagnostic view and which respond with a sales pitch.
That single test usually tells you everything you need.
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