01 / DeclarationRead this before anything else
I sell the competing channel
The Lead Gen Company is a UK paid search agency. SEO and PPC compete for the same budget, so I have a commercial interest in you concluding that organic search is slow, expensive and increasingly uncertain. You should read the sections on click decline with that in mind.
Two things in mitigation. Every figure in section 07 is sourced from independent research rather than my own analysis, and I have included the counter-evidence that cuts against my interest: organic clicks that survive convert better, AI-referred visitors engage longer, and market-level traffic is down only around 2.5% year on year rather than collapsing. Second, The Lead Gen Company does not sell SEO and is not scored anywhere on this page, so unlike the PPC agencies guide, there is no self-ranking to discount.
The honest position is that both channels work and they answer different questions. If you need leads this quarter, paid search does that and organic does not. If you want an asset that keeps producing after you stop paying, organic does that and paid does not.
02 / The short answerWho to use in the AI search era
Impression scores highest at 8.0/10, on the strongest combination of AI search readiness, conversion measurement and reporting that goes beyond rankings, with genuine B2B lead generation experience rather than ecommerce methods applied sideways. Blue Array (7.5) is an SEO-only specialist with strong handover practice, and Aira (7.4), Salt.agency (7.4) and StrategiQ (7.4) sit close behind on technical depth, research output and commercial-intent focus respectively.
What separates a good SEO agency in 2026 from a good one in 2022 is whether they have adjusted to a market where 68% of Google searches now end without a click and being cited in an AI answer matters as much as ranking beneath it. An agency still selling monthly blog volume and ranking reports is selling a 2021 product into a 2026 market.
Five things that changed the brief
- Ranking first no longer means being visited. A randomised field experiment in early 2026 found AI Overviews cut organic clicks by 38% on the queries where they appear, with zero-click rising from 54% to 72%.
- Impressions up and clicks down is not a ranking problem. It is the signature of zero-click search, and an agency that reports rising impressions as progress is reporting a symptom as a success.
- Being in the top ten no longer guarantees being cited. Overlap between AI Overview citations and the organic top ten fell from around 76% in mid-2025 to between 17% and 54% by early 2026. Citation is a separate job from ranking.
- B2B is among the worst affected. AI Overview coverage in B2B technology approaches 90% of queries, while ecommerce sits nearer 3%. If you sell services to businesses, you are in the maximum impact zone.
- The clicks that survive are better. Users who click through after reading a summary convert around 23% better, and AI-referred visitors engage roughly 30% longer. Less traffic, higher intent.
None of this makes SEO a bad investment. It makes the old version of it a bad investment, and it moves the decision from "how many keywords will we rank for" to "will we be the company an AI answer names when someone asks who does this".
03 / MethodSeven criteria for the search market as it is
AI search readiness carries 25%. That is a judgement about 2026 rather than a permanent weighting: three years ago technical depth would have carried it, and three years from now it may be something else. Right now it is the thing most likely to separate an agency that grows your pipeline from one that grows a chart.
| Criterion | Weight | What earns a high score |
|---|---|---|
| AI search readiness | 25% | A stated approach to citation and AI visibility, published research, and measurement that tracks presence in AI answers |
| Lead quality & measurement | 20% | Conversion tracking, CRM integration and reporting built around qualified enquiries rather than sessions |
| Commercial-intent focus | 15% | Work weighted to pages that convert rather than informational content chasing volume |
| Pricing transparency | 10% | A published figure or a published methodology for arriving at one |
| Contract flexibility | 10% | Reasonable minimum terms given the timescales, with a break clause |
| Reporting beyond rankings | 10% | Pipeline, branded search, share of voice and citations, not a keyword position table |
| Asset ownership | 10% | Content, technical work and data stay with you, on your domain, at exit |
How these scores were formed, and what they are not
AI search readiness is scored from published positioning, research output and public commentary, not from an audit of client work, which no outsider can perform. It is the softest judgement anywhere on this site and should be treated as a hypothesis to test in a first meeting rather than a measured result. UK SEO agencies almost universally decline to publish pricing, so figures are estimates from market benchmarks and labelled as such. Ties are broken by AI search readiness.
04 / At a glanceThe full comparison
| # | Agency | Score | AI readiness | Indicative UK fee | Best for |
|---|---|---|---|---|---|
| 1 | ImpressionNottingham & London | 8.0 | 9/10 | Est. £3,000 to £10,000/mo | B2B lead generation with serious measurement |
| 2 | Blue ArrayReading | 7.5 | 8/10 | Est. £2,500 to £8,000/mo | SEO-only specialism and clean handover |
| 3 | AiraMilton Keynes | 7.4 | 9/10 | Est. £3,000 to £9,000/mo | Research-led strategy and industry insight |
| 4 | Salt.agencyLeeds & London | 7.4 | 8/10 | Est. £2,500 to £8,000/mo | Technical SEO depth and international |
| 5 | StrategiQSuffolk | 7.4 | 7/10 | Est. £2,500 to £7,000/mo | Commercial-intent work tied to revenue |
| 6 | BuiltvisibleLondon | 7.2 | 8/10 | Est. £4,000 to £12,000/mo | Enterprise organic search programmes |
| 7 | HallamNottingham | 7.2 | 7/10 | Est. £2,000 to £6,000/mo | Mid-market integrated digital |
| 8 | DistinctlyHertfordshire | 6.8 | 7/10 | Est. £2,000 to £6,000/mo | Content-led organic growth |
| 9 | Vertical LeapPortsmouth | 6.8 | 7/10 | Est. £1,500 to £5,000/mo | Smaller budgets with structured process |
| 10 | Re:signalLondon | 6.7 | 7/10 | Est. £3,000 to £8,000/mo | Organic and content for larger brands |
| 11 | Rise at SevenSheffield & London | 6.4 | 8/10 | Est. £5,000 to £20,000/mo | Digital PR and brand-led search visibility |
One pattern worth naming. Every agency here scores 7 or above on AI search readiness, which reflects a market that has broadly noticed the change, and none scores above 5 on pricing transparency, which reflects a market that has not. If you want a published SEO price in the UK you will be looking for a long time.
05 / The elevenReviewed one by one
Same seven bars throughout. Where scores tie, the higher AI search readiness score ranks first.
Impression
Best overall for B2B lead generation
What it is. A well-established UK agency running organic search alongside paid media and analytics, with a genuine B2B and lead generation client base rather than an ecommerce specialism applied sideways.
Why it tops the ranking. Lead quality and reporting both score 9, which no other agency here manages, and AI search readiness scores 9 on the strength of published thinking about how search visibility is changing. For a lead generation buyer the combination matters more than raw technical depth: an agency that can tie organic work to pipeline in a CRM is answering the question you actually have.
Where it is weaker. Transparency scores 4 and flexibility 6. No published pricing and typical minimum terms of six to twelve months, which is standard for the category and defensible given the timescales, but it means the commitment in section 09 applies in full.
Strengths
- Joint-strongest measurement and reporting in this guide
- Genuine B2B and enquiry-led experience
- Published thinking on AI search and visibility
- Paid and organic under one roof if you want both
Considerations
- No published pricing
- Longer minimum terms
- Higher entry point than the regional agencies
- Minimum account sizes exclude smaller advertisers
Blue Array
Best SEO-only specialism with clean handover
What it is. A specialist that does search and nothing else, including a consultancy and embedded model where its people work as an extension of your team rather than as an external supplier.
Why asset ownership scores 9, the highest here. The embedded model means knowledge and process tend to stay with the client rather than walking out with the contract, which is unusual in a market where agencies often keep the strategy in their heads. For a business that expects to bring SEO in-house eventually, that is worth real money.
The trade-off. Lead quality scores 7 rather than 9. This is a search specialist rather than a demand generation agency, so conversion measurement and CRM integration are competent rather than the core product. If your tracking is a mess, budget for someone else to fix it.
Strengths
- Search specialism rather than one service among several
- Embedded model transfers knowledge to your team
- Strongest asset ownership position in this guide
- Better transparency than most UK SEO agencies
Considerations
- Conversion measurement is not the core product
- No published pricing, only better-than-average signposting
- Less integrated if you also want paid and creative
- Smaller than the London enterprise agencies
Aira
Best research-led strategy
What it is. A UK digital agency known for publishing industry research, including an annual State of SEO survey of thousands of practitioners, alongside client work in organic search, content and digital PR.
Why AI search readiness scores 9. An agency that surveys the profession every year and publishes the results is, structurally, one that notices market shifts early. Public research is also checkable: you can read what they think about AI search before you brief them, which is more than most agencies allow.
Where it is weaker. Lead quality scores 7 and transparency 5. Strategy and research depth are the strengths; conversion measurement and commercial pricing clarity are competent rather than distinguishing.
Strengths
- Published industry research you can read before briefing
- Strong strategic and content capability
- Good reporting depth
- Well-regarded across the UK search industry
Considerations
- Conversion measurement is not the standout strength
- No published pricing
- Longer minimum terms
- Higher entry point than regional agencies
Salt.agency
Best technical depth and international
What it is. A technical SEO specialist with strong international and multilingual capability, working on the engineering side of organic search rather than content volume.
Who it works for. Businesses whose organic problem is structural: site architecture, indexation, migration, international targeting or JavaScript rendering. These are the problems where a technical specialist produces step changes and a content agency produces reports.
The trade-off. If your site is technically sound and your problem is that nobody is writing anything worth citing, this is the wrong specialism. Lead quality scores 7 for the same reason as most technical shops: measurement is competent rather than the core offer.
Strengths
- Genuine technical depth rather than content volume
- Strong international and multilingual capability
- Good asset ownership and documentation practice
- Reasonable contract flexibility for the category
Considerations
- Wrong specialism if your problem is content and authority
- Conversion measurement is not the core offer
- No published pricing
- Less useful for purely local UK businesses
StrategiQ
Best commercial-intent focus
What it is. A UK agency running search alongside paid, CRO and creative, positioned around commercial outcomes rather than channel activity, with a strong regional client base.
Why commercial-intent focus scores 8. The work is weighted towards pages that convert rather than informational content chasing volume, which in 2026 is not a stylistic preference but a survival strategy: informational click volume is where the AI Overview losses concentrate, and commercial and comparison pages have held up far better.
Where it is weaker. AI search readiness scores 7 rather than 9. Solid rather than leading, and worth probing directly on how they measure citation and AI visibility before you commit.
Strengths
- Work weighted to pages that actually convert
- Search, paid and CRO coordinated
- Good reporting tied to commercial outcomes
- Reasonable terms and regional pricing
Considerations
- AI search positioning is solid rather than leading
- No published pricing
- Less technical depth than the specialists
- Smaller than the London agencies
Builtvisible
Best for enterprise organic programmes
What it is. A long-established London agency working on large organic search and content programmes, with the analytical and editorial resource that enterprise clients expect.
Who it works for. Larger organisations with complex sites, multiple stakeholders and the patience for a programme rather than a campaign. Commercial-intent focus scores 8, which matters at this level because enterprise SEO can otherwise disappear into content production with no revenue line attached.
The trade-off. Transparency 4, flexibility 6 and the highest entry point outside Rise at Seven. Enterprise procurement, annual terms, and a scale of engagement that a business spending £2,000 a month will not access.
Strengths
- Serious analytical and editorial resource
- Built for complex enterprise sites
- Good commercial focus for the category
- Long track record with recognisable clients
Considerations
- High entry point and annual terms
- No published pricing
- Enterprise procurement process
- Wrong shape for smaller UK businesses
Hallam
Best mid-market integrated digital
What it is. A long-established Nottingham agency running organic search alongside paid media, content and strategy for a UK mid-market client base.
Who it works for. Businesses that want paid and organic handled by one team, where coordination between the two outweighs the depth of a specialist. Lead quality and reporting both score 8, a strong combination at mid-market level.
Where it is weaker. AI search readiness scores 7 and transparency 4. Competent and current rather than leading the conversation, which for most mid-market buyers is entirely sufficient, but ask directly how they are measuring AI visibility.
Strengths
- Paid and organic coordinated in one team
- Good measurement and reporting for mid-market
- Long-established regional reputation
- Accessible entry point
Considerations
- AI search positioning is competent rather than leading
- No published pricing
- Organic is one service among several
- Less technical depth than the specialists
Distinctly
Best content-led organic growth
What it is. A UK agency combining organic search with content marketing and digital PR, working across a mixed client base of B2B and consumer brands.
Who it works for. Businesses whose organic gap is authority and coverage rather than technical structure. Digital PR earns the links and mentions that remain among the strongest predictors of whether an AI answer cites you, so the discipline has become more relevant rather than less.
Why it ranks eighth. No criterion is weak and none is standout. In a market where the top five each have a distinguishing strength, a solid all-round score is what eighth looks like rather than a criticism of the work.
Strengths
- Content and digital PR build the authority AI answers reward
- Balanced across technical, content and outreach
- Reasonable mid-market pricing
- Good asset ownership practice
Considerations
- No standout strength on these criteria
- No published pricing
- Measurement is competent rather than deep
- Less technical depth than the specialists
Vertical Leap
Best structured process on smaller budgets
What it is. A Portsmouth-based search marketing agency with a structured, process-driven approach and proprietary analysis tooling, serving a broad UK client base including smaller budgets than most agencies here accept.
Who it works for. Businesses spending £1,500 to £3,000 a month who want a defined process rather than a bespoke consultancy relationship. At that budget the alternative is usually a freelancer, and a structured agency process has real advantages in consistency.
The trade-off. A process-driven model is by definition less tailored. If your situation is unusual, the process may not bend around it, and asset ownership scores 7 partly because proprietary tooling can mean parts of the work are less portable.
Strengths
- Accepts smaller budgets than most agencies here
- Structured, repeatable process
- Better pricing signposting than most
- Long-established with broad UK coverage
Considerations
- Less tailored than a consultancy model
- Proprietary tooling can reduce portability
- Not the strongest on AI search positioning
- Measurement is standard rather than deep
Re:signal
Best for larger brands wanting organic and content
What it is. A London organic search and content agency working with established brands, with a focus on content strategy alongside technical and authority work.
Who it works for. Larger organisations wanting organic search treated as a content and brand discipline rather than a technical one. That framing has aged well: as click volume falls, brand recognition and citation matter more than incremental ranking gains.
Why it ranks tenth. Transparency 4 and no criterion above 8. A competent London agency in a table where the leaders have distinguishing strengths, and a higher entry point than the regional agencies scoring similarly.
Strengths
- Content strategy framing suits a low-click market
- Experience with established brands
- Good asset ownership practice
- Balanced organic capability
Considerations
- No published pricing
- No standout strength on these criteria
- Higher entry point than similarly scoring regional agencies
- Longer minimum terms
Rise at Seven
Best for brand-led search visibility
What it is. A search-first creative agency built around digital PR and brand campaigns designed to earn coverage, links and search visibility, working with recognisable consumer and retail brands.
Why AI search readiness scores 8 despite ranking last. The work it does, earning mentions and coverage across authoritative sites, is close to the strongest known predictor of whether an AI answer cites a brand. Strategically it is well positioned for where search is going.
Why it ranks eleventh on these criteria. Lead quality scores 6 and commercial-intent focus 6. This is a brand visibility agency, not a lead generation one, and the criteria here reward pipeline measurement and conversion-focused work. For a consumer brand wanting fame it would rank far higher. For a B2B firm wanting thirty qualified enquiries a month it is the wrong tool, and the price point makes that an expensive mistake.
Strengths
- Digital PR earns exactly the signals AI answers reward
- Genuine creative capability rather than content production
- Strong brand and consumer track record
- Well positioned for where search visibility is heading
Considerations
- Not a lead generation agency, and does not claim to be
- Highest entry point in this guide
- Weakest commercial-intent and lead measurement scores here
- Wrong fit for most B2B enquiry-led businesses
Need leads this quarter rather than next year?
SEO is the right long-term asset and the wrong short-term answer. If the gap matters, tell me what you sell and I will give you an honest read on which channel fits the timeline.
06 / MoneyWhat SEO costs in the UK
Almost no UK SEO agency publishes pricing, so these are market bands rather than quoted figures. The more useful number is the second column: what you commit before you can judge anything.
| Tier | Monthly fee | Committed over 9 months | What you get |
|---|---|---|---|
| Freelancer or consultant | £800 to £1,500 | £7,200 to £13,500 | One experienced person, limited production capacity |
| Regional agency | £1,500 to £3,000 | £13,500 to £27,000 | Small team, technical plus content, structured process |
| Established UK agency | £3,000 to £8,000 | £27,000 to £72,000 | Strategy, technical, content, digital PR and analytics |
| Enterprise | £8,000 to £20,000+ | £72,000 to £180,000+ | Programme-scale work across complex sites and markets |
| Digital PR led | £5,000 to £20,000 | £45,000 to £180,000 | Campaigns designed to earn coverage and citations |
07 / New analysisThe click collapse, in numbers
Every figure here comes from independent research rather than my own analysis, which matters because I sell the competing channel. Where studies disagree I have given the range rather than the most alarming number.
The cleanest evidence is a randomised field experiment run in January and February 2026 by researchers at the Indian School of Business and Carnegie Mellon, which hid AI Overviews for one group and compared behaviour. Removing them increased outbound clicks from 0.38 to 0.61 per search. AI Overviews appeared on 42% of queries and sat at the top of the page 85% of the time.
Other studies put the CTR decline anywhere between 15% and 61% depending on method and query set. What every study agrees on is direction, and that the losses concentrate on informational queries rather than commercial ones.
| 10,000 impressions | Organic CTR | Clicks |
|---|---|---|
| No AI Overview present | 1.76% | 176 |
| AI Overview present | 0.61% | 61 |
| Difference | -65% | -115 clicks |
The counter-evidence, stated fairly
Market-level organic traffic in the US fell only around 2.5% year on year to January 2026, which is a real decline and not a collapse. The clicks that survive convert roughly 23% better, because a user who clicks after reading a summary has already self-qualified. Visitors arriving from AI engines engage around 30% longer. And ecommerce is barely affected, with AI Overviews on roughly 3% of queries.
The honest summary is redistribution rather than destruction: informational traffic is being absorbed, commercial and comparison traffic is holding, and the sites being cited are gaining. That is bad news for anyone whose organic strategy was a blog, and neutral or good news for anyone whose strategy was ranking for the queries that precede a purchase.
08 / New analysisCitation is the new ranking
The most consequential shift for a lead generation buyer is not that clicks fell. It is that being in the top ten stopped guaranteeing you appear in the answer above it.
Overlap between AI Overview citations and the organic top ten fell from around 76% in mid-2025 to somewhere between 17% and 54% by early 2026. Citation is now a partly separate discipline, and an agency optimising only for position is optimising for a shrinking share of the visibility available.
| Signal | What the research suggests | What it means for a brief |
|---|---|---|
| Domain authority | Reported as the single strongest predictor of AI citation, with high-authority sites earning around three times more | Digital PR and links matter more, not less |
| Third-party profiles | Brands with profiles on review platforms are reported as roughly three times more likely to be cited | Trustpilot, G2, Capterra and directory presence is search work now |
| Content freshness | Pages not updated quarterly are reported as around three times more likely to lose citations | Budget for maintaining pages, not just publishing them |
| Answer-first structure | Cited content tends to be clear, factual and directly structured | Lead with the answer, then the reasoning |
| Brand and navigational search | Branded queries are least affected by AI Overviews | Building name recognition protects the channel |
Notice what that list does not contain: publishing volume. The 2021 playbook of thirty blog posts a quarter aimed at informational keywords is precisely the content whose click value has been absorbed. If an agency's proposal is largely a content calendar, ask what share of those pages target commercial intent and how citation will be measured.
How to read your own Search Console
Impressions rising while clicks fall is the signature of zero-click search, not of a ranking problem, and it is the single most misread chart in this market. If impressions are also falling, that is a ranking or indexation issue and a different conversation. Ask any prospective agency to explain which pattern your account shows before they propose anything. An agency that reports rising impressions as progress without addressing the click gap is either not looking or hoping you are not.
09 / New analysisThe payback maths nobody puts in a proposal
SEO's real cost is not the monthly fee. It is the total committed before you can tell whether it is working, during which you are paying and receiving very little.
Meaningful organic lead flow typically starts somewhere between month six and month twelve. At a mid-market fee that means:
| Monthly fee | Committed to month 9 | Committed to month 12 | What the same money buys in paid search |
|---|---|---|---|
| £1,500 | £13,500 | £18,000 | Roughly 5 months of a £1,500 fee plus £2,000 media, producing leads from week three |
| £2,500 | £22,500 | £30,000 | Roughly 4 months of a £1,500 fee plus £5,000 media |
| £4,000 | £36,000 | £48,000 | Roughly 6 months of a £1,500 fee plus £5,000 media |
I sell the right-hand column, so weigh that. The genuine counter-argument is that the comparison is unfair in the other direction: paid search stops producing the day you stop paying, while organic rankings and citations keep working. Over three years the arithmetic usually favours organic, which is why most businesses with the patience and cash flow should do both, and why the ones without either should start with paid.
The test worth applying
Take your monthly fee, multiply by nine, and ask whether losing that money entirely would hurt. If it would, either negotiate a shorter commitment with a defined month-six review, or start with a channel that produces leads while you build. If it would not, SEO is one of the few marketing investments that becomes an asset rather than an expense, and the businesses that committed through the AI Overview turbulence are the ones being cited now.
10 / Ask theseTen questions before you commit
- Show me our Search Console: are impressions rising while clicks fall? The answer tells you which problem you actually have.
- How do you measure whether we appear in AI answers? There should be a named method, not an assurance.
- What share of the proposed pages target commercial intent rather than informational? The informational half is where the clicks went.
- How will organic leads be tracked into our CRM? Sessions are not enquiries.
- What does month six look like, and what would tell us this is not working? A good agency has a failure condition.
- Is there a break clause at month six? Given the commitment in section 09, ask for one.
- Who owns the content and technical work at exit? It should be on your domain and yours to keep.
- How do you approach digital PR and third-party profiles? Both are now citation signals rather than nice-to-haves.
- What is your plan for maintaining existing pages? Stale pages lose citations.
- What would make you tell us SEO is the wrong channel for this business? Any agency that cannot answer has not thought about it.
11 / QuestionsWhat buyers ask before signing
How much do SEO agencies charge in the UK?
Freelancers and consultants run £800 to £1,500 a month, regional agencies £1,500 to £3,000, established UK agencies £3,000 to £8,000, and enterprise programmes £8,000 to £20,000 or more. Almost no UK SEO agency publishes pricing, so these are market bands rather than quoted figures. The more useful number is what you commit before you can judge results: at £2,500 a month over nine months, that is £22,500.
Which is the best SEO agency for lead generation in the UK?
On the seven criteria used here, Impression scores highest at 8.0 out of 10 for the combination of AI search readiness, conversion measurement and reporting that goes beyond rankings, with genuine B2B experience. Blue Array scores 7.5 as an SEO-only specialist with strong handover practice, and Aira, Salt.agency and StrategiQ all score 7.4 for research-led strategy, technical depth and commercial focus respectively.
Is SEO still worth it in 2026?
For commercial and comparison queries, yes. For informational content, much less than it was. Roughly 68% of Google searches now end without a click, and a randomised field experiment found AI Overviews cut organic clicks by 38% on affected queries. But market-level organic traffic fell only around 2.5% year on year, the clicks that survive convert about 23% better, and ecommerce is barely affected. It is redistribution rather than destruction, and it punishes blog-volume strategies specifically.
How long does SEO take to produce leads?
Meaningful organic lead flow typically starts between month six and month twelve, depending on your domain's existing authority, competition and how much technical work is needed first. That makes the real question not the monthly fee but the total committed before you can judge it: nine months at £2,500 is £22,500. If losing that entirely would hurt, negotiate a break clause at month six or run a faster channel alongside it.
Why are my impressions rising but my clicks falling?
That is the signature of zero-click search rather than a ranking problem. When an AI Overview appears above your result, Google counts an impression but far fewer users click through, and one study measured organic CTR falling from 1.76% to 0.61% on affected queries. If impressions are also falling, that is a ranking or indexation issue and a different conversation. Ask any agency to identify which pattern your account shows before they propose a solution.
What is GEO or AI search optimisation?
It is the work of being cited inside AI-generated answers rather than only ranking beneath them, and it has become a partly separate discipline because overlap between AI Overview citations and the organic top ten fell from around 76% in mid-2025 to between 17% and 54% by early 2026. The signals that appear to matter most are domain authority, presence on third-party review platforms, content freshness and answer-first page structure.
Should I choose SEO or PPC for lead generation?
They answer different questions. Paid search produces leads within weeks and stops the day you stop paying. SEO produces nothing for months and keeps producing afterwards. If you need pipeline this quarter, start with paid. If you can fund nine to twelve months without return, organic builds an asset rather than renting one. Most businesses with the cash flow should run both, using paid to fund the wait. I sell paid search, so weigh that accordingly.
Is B2B SEO harder now than B2C?
In one specific respect, yes. AI Overview coverage in B2B technology queries approaches 90%, while ecommerce sits nearer 3%, so B2B informational content sits in the maximum impact zone. The practical response is to weight work towards commercial and comparison pages, which have held their traffic far better, and to treat citation and brand recognition as objectives in their own right rather than by-products of ranking.
What should an SEO report contain in 2026?
Qualified enquiries tracked into your CRM, revenue or pipeline where attribution allows, branded search volume as a proxy for recognition, share of voice against named competitors, and some measure of presence in AI answers. A keyword position table is no longer sufficient on its own, because position and traffic have decoupled. If a report shows rising impressions as a headline achievement without addressing the click gap beneath it, that is a warning sign.
12 / TransparencyMethod, limitations and sources
How this guide was built
Agencies were selected from firms appearing consistently across UK search results, industry awards and buyer shortlists, filtered to those with meaningful organic search capability, and spread across specialisms from technical to content to digital PR. Each was scored against the seven weighted criteria in section 03, using published positioning and market benchmarks. Ties are broken by AI search readiness.
The conflict, restated. The Lead Gen Company is a paid search agency and competes with SEO for the same budget. I have declared that in section 01, sourced every click-decline figure to independent research, and deliberately included the counter-evidence that undermines my commercial interest. The Lead Gen Company does not sell SEO and is not scored anywhere on this page.
The softest judgement on this site. AI search readiness is scored from public positioning, published research and commentary rather than from any audit of client work. It is a reasonable proxy and it is not a measurement. Treat the column as a hypothesis to test in a first meeting. Similarly, UK SEO agencies almost universally decline to publish pricing, so every fee here is a market-band estimate rather than a quote, and pricing transparency scores are correspondingly low across the whole table.
Corrections. If you work at one of these agencies and a figure or characterisation is wrong, send the correction and the page it is published on, and this guide will be updated with the change noted.
Sources
- SparkToro and Similarweb, 2026 zero-click study, 68.01% of Google searches ending without a click
- Agarwal and Sen, Indian School of Business and Carnegie Mellon, randomised field experiment on AI Overviews, 2026
- Seer Interactive, organic CTR analysis across 25.1 million impressions
- Pew Research Center, behavioural tracking of 68,879 Google searches
- Ahrefs, position one CTR decline analysis, 2025 and 2026 updates
- BrightEdge and Semrush, AI Overview query coverage estimates
- Search Engine Land reporting on Graphite organic traffic data, January 2026
- Analysis of AI Overview citation overlap with the organic top ten, 2025 to 2026
- SE Ranking and Semrush research on AI citation predictors
- Aira, State of SEO practitioner survey
- UK agency directories, awards listings and published positioning, 2026
- UK SEO pricing benchmarks, 2026
Want a second opinion on an SEO proposal?
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Related reading: the best PPC agencies for lead generation covers the faster channel and declares my interest in it, the best lead generation companies in the UK covers the whole market, and the best B2B lead generation companies covers outbound alternatives. If you want to talk about PPC lead generation while organic builds, the form at the top of this page is the fastest route.