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ChatGPT ads agencies in the United Kingdom now split into two camps: the ones earning brand citations inside AI search results, and the ones preparing to buy the paid placements OpenAI began testing inside ChatGPT in 2026. This guide profiles 11 agencies across that spectrum, ranked by verifiable results, depth of ai marketing expertise, and fit for B2B buyers rather than self-published claims. Each profile names real clients, real metrics, and the honest point where the agency's capability stops.
At a glance
How we selected these agencies
Eleven made this list out of a much larger pool of UK firms claiming ai marketing expertise. The criteria below are strict, because the gap between a marketing agency that genuinely built AI capability and one that rebranded its old service page is wide.
Verified results. Every agency here has at least one named client with a specific, checkable metric. Self-published rankings and vague promises of digital growth were not enough: where a marketing agency claims a lift in brand visibility or search performance, that claim needed a number attached.
Specialization depth. AI work is not ordinary SEO with a new label. Each agency was assessed on whether it offers distinct generative engine optimization, entity work, schema, and AI citation tracking, rather than folding everything into one search optimization retainer.
Independently checkable certifications. Google Premier Partner status, B Corp certification, and platform partnerships were verified against public registries, not taken from agency marketing.
Honest limitations. Each profile states where the agency stops. A digital marketing agency that only serves eCommerce brands is a poor fit for a complex B2B sale, and the article says so plainly.
Relevance to B2B buyers. This list weights agencies with real B2B track records, because the readers most affected by ai marketing are companies with long, considered sales cycles where being the recommended answer changes pipeline.
Why AI search changed the rules for UK agencies
Search behavior in the United Kingdom shifted faster than most teams adjusted to, and a digital marketing agency now has to win across two surfaces at once: the classic ten blue links, and the AI generated answers that increasingly sit above them. Becoming the brand an AI recommends is increasingly valuable, and hard to fake.
Zero-click search is now the norm. Roughly 60% of searches end without a click to any website, according to the Similarweb and SparkToro 2025 Zero-Click Study, which puts EU searches at 59.7%. Google AI Overviews appear on roughly a quarter of Google search queries (Conductor, 25.1% in late 2025), though BrightEdge put the figure closer to 48% of tracked queries by February 2026, with methodology explaining most of the gap. When Google AI resolves the question on the results page, the old search engine optimization prize of a high ranking delivers less traffic than it used to, and search visibility has to be redefined around citations rather than clicks.
ChatGPT became a primary research surface. OpenAI reported more than 900 million weekly active users in February 2026. For a growing share of buyers, ai powered search inside ChatGPT now replaces the first queries they would once have typed into a search engine, so a brand invisible to AI tools is invisible at the start of the buying journey.
AI referrals convert better, when you can earn them. AI traffic tends to convert better than ordinary organic, because the AI has already done the shortlisting. A Semrush study published in June 2025 found AI search visitors converting at 4.4x the rate of traditional organic visitors, on the logic that the AI has already walked them through their options before they click. That figure is contested and skews high, since the study looked at digital marketing and SEO topics where AI adoption runs hottest, and at least one large analysis found traditional organic still ahead for transactional purchases. The direction holds even if the multiple does not: ai search visibility produces measurable outcomes, not just impressions, and 67% of marketers now use AI for content marketing or SEO.
Paid AI placements have arrived. OpenAI began testing ads inside ChatGPT in the United States on 9 February 2026, for logged-in adult users on the free and Go tiers, and confirmed on 7 May 2026 that the pilot would expand to the United Kingdom alongside Brazil, Japan, Mexico, and South Korea. Sponsored chat placements involve bidding on real-time queries within ChatGPT rather than buying keywords in advance, and OpenAI added a self-serve Ads Manager and cost-per-click bidding in early May 2026. These ChatGPT ads will not behave like traditional PPC ads or ordinary paid ads: they sit below a conversational answer, are labelled as sponsored, and do not change ChatGPT's organic response, while paid tiers, under-18 accounts, and sensitive categories stay ad-free. OpenAI and other LLM platforms opening to sponsored recommendations is why UK advertising agencies have split into ChatGPT paid advertising specialists and GEO specialists. Agencies need to connect those paid placements to their measurement systems, and agencies must prepare for ChatGPT ads by tightening messaging.
Choosing a marketing agency in 2026 is no longer about who ranks you on Google. It is about who can make your brand the answer artificial intelligence gives, and who is ready when paid ChatGPT inventory opens to UK advertisers.
1. The Growth Syndicate: best for B2B firms that need strategy before channel execution
Founded: 2024 · HQ: Amsterdam, with a New York office · Team: senior-only delivery · Website: thegrowthsyndicate.com
Most agencies on this list start with a channel and work outward. The Growth Syndicate starts with the commercial problem and decides which channels, including ai search, actually serve it. That ordering separates a marketing agency that executes tactics from one that operates as a growth marketing agency embedded inside your company.
What they do. The Growth Syndicate runs an integrated B2B model across Strategic Performance, Demand Generation, ABM, content marketing and thought leadership, SEO and AI-Optimized Search, and RevOps. The ai search work is wired into demand and content marketing rather than sold as a standalone product, so the same team shaping your positioning engineers your content for AI search results. Paid media runs inside the same strategy, which means a paid campaign is measured against pipeline, not clicks in isolation.
Verifiable results. For Frends, an integration platform, the agency drove 75K MRR and moved MQL-to-SQL conversion from 14% to 30% while opening 24 ABM opportunities. For Cutr, a manufacturing marketplace, the work produced 4x qualified leads and 2.8x sales conversions. For Axual, a data streaming platform, it generated €306K in marketing-generated pipeline plus €270K in marketing-assisted pipeline. These are revenue outcomes from complex organizations with considered sales cycles, and the measurable results are tied to revenue, not vanity metrics.
Ideal fit. B2B and B2B SaaS tech companies with a channel problem masking a strategy problem. If your paid media works but your pipeline does not, or your content ranks but does not convert, this is the agency for that gap. The transparent pricing and transparent reporting suit teams wanting senior, deep expertise without a bloated retainer.
Where it stops. The Growth Syndicate is built for B2B. It is not the right partner for high-volume DTC eCommerce brands, consumer mobile apps, or brands wanting a pure media-buying shop. Companies looking only to outsource a single channel will find the integrated model more than they need.
Google Premier Partner: No. Pricing. Transparent hourly rates with a monthly minimum, billed pay-as-you-go, with 30 days' notice to cancel.
2. Blue Array: best for enterprise search optimization at scale
Founded: 2015 · HQ: Reading, UK, with a London office and a Seville sister agency · Team: ~50 · Website: bluearray.co.uk
Blue Array was the first UK marketing agency to productize generative engine optimization as a named service, and it remains one of few search specialists with the headcount to run AI work across an enterprise account.
What they do. Blue Array pairs deep search optimization with GEO governance frameworks, schema, entity work, and citation mapping across Google AI, ChatGPT, and other AI platforms. Its "Consulgency" model blends consultancy-grade digital strategy with agency delivery, and the Blue Array Academy trains in-house teams in ai search optimization. Digital PR and link building run alongside it, because earned citations are one of the strongest levers in ai search visibility.
Verifiable results. Blue Array has delivered organic and ai search optimization work for RAC, Mail Online, Simply Business, Yell, and Crew Clothing. It is a certified B Corp with a verified impact score of 91.9, well above the median of around 51, and its dedicated B2B vertical covers banking, finance, fintech, and insurance. It was independently confirmed by B Lab as the first UK agency to offer GEO as a named service.
Ideal fit. Enterprise and mid-market organizations, including regulated B2B firms in financial services, that need digital marketing run with governance. Teams that value B Corp credentials and public-sector eligibility will find few alternatives.
Where it stops. Blue Array is an organic search and GEO specialist, not a paid media shop, so brands wanting integrated paid media or full paid media management will need a second partner. It does not position itself around eCommerce conversion performance.
Google Premier Partner: No. Pricing. Custom retainers, tailored rather than packaged.
3. The SEO Works: best for documented ai search case studies
Founded: 2009 · HQ: Sheffield, UK, with Leeds, London, Manchester, and Philadelphia offices · Team: ~80 · Website: seoworks.co.uk
The clearest published ai seo results in the United Kingdom belong to The SEO Works, which did the unglamorous work of attaching real numbers to AI results while most agencies were writing think-pieces.
What they do. The SEO Works offers named GEO and answer engine optimization services built on a proprietary information infrastructure methodology, covering LLM revenue attribution, technical AI indexing, modular content engineering, schema, and digital PR. The ai seo work is measured against referrals and revenue, not citation counts alone, which is rarer than it should be in this category.
Verifiable results. For DHL, The SEO Works reports a 287% increase in Google AI Overviews citations and a 121% rise in ChatGPT referrals after optimizing destination content for both crawlers and large language models. A separate eCommerce campaign drove a 78% rise in revenue attributed to ChatGPT referrals. The agency's own site went from roughly five AI referrals a month to over 100, concentrated on revenue pages, with strong early performance where it matters commercially.
Ideal fit. B2B and SaaS companies that want ai seo tied to revenue attribution, and any brand that wants to see proof before it signs. Its B2B roster includes SaaS firms such as Sagacity.
Where it stops. The SEO Works is a search and content specialist, not built for large-scale paid social or brand advertising campaigns. A brand wanting one agency for ai search plus heavy paid media work will need to confirm that media capacity directly.
Google Premier Partner: Yes. Pricing. Retainers reported from around $3,000 a month, rising for advanced ai seo programs.
4. Found: best for proprietary AI tracking
Founded: 2005 · HQ: London, UK · Team: mid-sized (part of the Tomorrow group) · Website: found.co.uk
Found built its own measurement layer for ai search rather than relying on third-party dashboards, so it can show a brand its share of AI search results in close to real time.
What they do. Found runs a dedicated answer engine optimization service using its trademarked Everysearch methodology and the proprietary Luminr platform, which maps brand AI visibility across ChatGPT, Perplexity, social, and search engines. The agency pairs that work with content marketing, paid media, and social media marketing, so this work sits inside a full set of digital solutions rather than alone.
Verifiable results. Found has delivered search and AI tracking work for AllClear, 1st Central, and Vita Student. It has been named a top-ten Great Place to Work for five consecutive years and holds Google Premier Partner status, placing it in the top tier of UK digital marketing agencies by Google's own measure.
Ideal fit. Brands that want ai search optimization backed by proprietary tracking and a clear view of where they appear across AI platforms. Suits marketing teams that need AI work integrated with paid media rather than bought separately.
Where it stops. Found is a strong generalist digital agency, a capable marketing agency rather than a B2B specialist. Companies with technical, long-cycle B2B sales may find its case studies skew toward consumer and mid-market brands, and should pressure-test B2B fit first.
Google Premier Partner: Yes. Pricing. Custom marketing solutions, quoted per engagement.
5. Passion Digital: best for AI-native search infrastructure
Founded: 2012 · HQ: London, UK · Team: ~45 · Website: passion.digital
After being acquired by AI marketing platform Pixis.ai in 2025, Passion Digital gained access to AI infrastructure most independent UK agencies cannot build alone, while keeping the attention of a mid-sized shop.
What they do. Passion Digital runs an ai search optimization and GEO service spanning entity work, semantic enhancement, cross-platform AI performance tracking, automated content marketing production, and forecasting, powered by the AI infrastructure of its parent network. Performance marketing and paid media sit alongside, so the ai marketing work connects to measurable paid campaigns rather than running as an isolated experiment.
Verifiable results. Passion Digital's roster includes Moore Kingston Smith, Nutanix, Knight Frank, Octopus Investments, and OneTrust, a notably B2B and professional-services-heavy list. It holds multi-year Google Premier Partner status and has been recognized at the UK Digital Growth Awards and UK Search Awards.
Ideal fit. B2B, professional services, and finance brands that want digital marketing backed by network-scale AI infrastructure but delivered with independent-agency care, with content marketing, ai search, and performance media under one roof.
Where it stops. Passion Digital is a mid-sized marketing agency, so the very largest enterprise programs may stretch its capacity. Brands wanting a pure GEO agency with no paid or content layer will find the integrated model broader than necessary.
Google Premier Partner: Yes. Pricing. Custom.
6. Kaizen: best for ChatGPT ads strategy and digital PR
HQ: London and Manchester, UK · Team: mid-sized independent · Website: kaizen.co.uk
Kaizen was among the first UK agencies to brand a marketing agency offer explicitly around ChatGPT, treating ChatGPT ads and search visibility as one connected problem rather than two line items.
What they do. Kaizen offers a named ChatGPT optimization service covering AI content mapping, content alignment, authority building, competitive analysis of AI summaries, plus tracking, alongside exploration of ChatGPT advertising opportunities as the inventory opens. Its digital PR engine is the standout, because earned media coverage feeds the citations AI engines rely on. The agency frames search, PR, and social as a single search optimization problem and supports ChatGPT ads as part of it.
Verifiable results. Kaizen's B2B and fintech roster includes CloudZero, a cloud-cost SaaS platform, and Capital on Tap. Its digital PR work has won multiple industry awards, and its media relationships have produced coverage in tier-one outlets that translates directly into AI search optimization.
Ideal fit. B2B and fintech brands that want ChatGPT advertising connected to a serious digital PR operation. Strong for companies whose authority depends on being cited across credible third-party sources.
Where it stops. Kaizen is a search, PR, and social specialist, not a full-service performance media agency, so brands wanting large paid media management across search and paid social at scale will need to confirm that capacity.
Google Premier Partner: No. Pricing. Custom.
7. Push Group: best for AI marketing transformation and paid media
Founded: 2007 · HQ: London, UK, with US, Dubai, and Greece offices · Team: ~50 · Website: pushgroup.co.uk
Push Group approaches ai search as one part of a wider AI marketing transformation, as comfortable engineering AI citations as running paid campaigns at FTSE-250 scale.
What they do. Push Group offers answer engine optimization covering entity architecture, multi-LLM citation engineering, llms.txt deployment, schema, and AI-ready content, positioned inside a broader ai marketing transformation practice. Its paid media suite is full-service, including Google Ads, paid social, paid ads, performance media, and large-scale advertising campaigns, supported by proprietary ai tools. Web development, web design, and digital strategy round out the digital solutions on offer.
Verifiable results. Push Group's clients include Clarks, the Natural History Museum, Golfbreaks.com, Stagecoach, and Hilti, a B2B industrial brand. It is a Google Premier Partner in the top 3% across EMEA and one of few Microsoft Elite Partners in the United Kingdom. It won Best Use of AI at the UK Agency Awards and Best Use of AI in Search at the UK Search Awards in 2025.
Ideal fit. B2B and eCommerce brands from growth-stage to enterprise that want digital marketing and paid media under one roof, plus web development and web design capacity. Best for organizations treating artificial intelligence as a transformation program, not a tactic.
Where it stops. Push Group is a broad performance marketing agency, more digital agency than narrow GEO boutique. Brands wanting only lightweight ai search work may find its full-service model more than they need, and breadth means less specialization in any niche.
Google Premier Partner: Yes. Pricing. Mid-market AEO programs reported around £5,000 to £10,000 a month, with enterprise work higher.
8. connective3: best for B2B performance marketing plus GEO
Founded: 2019 · HQ: Leeds, UK, with London and Manchester offices · Team: ~100 · Website: connective3.com
connective3 brought performance marketing discipline to ai search, treating GEO as a measurable growth channel rather than an experiment, with the B2B case studies to back it.
What they do. connective3 offers named GEO and LLM search services covering AI audits, schema, LLM-query targeting, digital PR, link building, and social-search signals, with AI Overviews tracking built into reporting. The performance marketing DNA shows in how the work is measured, and the agency publishes LLM-visibility research and runs AI training. Paid media, social media marketing, and targeted campaigns run alongside the search optimization work.
Verifiable results. connective3 works across both B2B and consumer, with a client list that includes Ocado, Wren Kitchens, Compare the Market, and Love Holidays. It is a Google Premier Partner in the top 3% and one of around 20 agencies in Google's International Growth Programme, useful for brands entering international markets. It is also Bing and Meta certified and is recognised at the UK Search Awards.
Ideal fit. B2B brands that want digital marketing run with performance marketing rigor and clear reporting, especially those expanding into new markets where Google's growth program support matters.
Where it stops. connective3 is a performance and search specialist, less suited to brands wanting deep brand-creative or heavy social media management and content production. Its model assumes clients who want measurable channels over brand storytelling.
Google Premier Partner: Yes. Pricing. Custom tailored campaigns and retainers.
9. TEAM LEWIS: best for PR-led GEO and B2B authority
Founded: 1995 · HQ: London, UK, with EMEA, Americas, and APAC offices · Team: global · Website: teamlewis.com
TEAM LEWIS understands the lever most pure search shops underrate: earned media is one of the strongest inputs to AI generated answers, and a global digital agency with deep PR roots can pull it harder than an SEO firm can.
What they do. TEAM LEWIS runs a dedicated generative engine optimization service combining brand-mention tracking across ChatGPT, Perplexity, and Google AI, content optimized for AI extraction, integrated SEO and PR authority building, and advisory on advertising within AI platforms. The agency formally moved its practice from ai optimisation framing to GEO, reflecting how central earned authority is to AI presence. Media relationships are the engine behind the citations.
Verifiable results. TEAM LEWIS is a global communications agency serving a broad B2B and technology roster, launched its dedicated GEO service in early 2025, and in 2026 acquired reputation-management firm Instinctif Partners to deepen its authority-building capability. Its PR-led model produces the third-party coverage AI tools cite when generating answers about a category.
Ideal fit. B2B and technology brands whose AI presence depends on authority and reputation across credible sources. Strong for companies that already value PR and want it connected to GEO.
Where it stops. TEAM LEWIS is a large, PR-led agency. Brands wanting a lean, technical-first GEO engagement, or a pure performance media shop, may find its communications-led model and enterprise scale a poor fit for a small budget.
Google Premier Partner: No. Pricing. Enterprise and custom.
10. Screaming Frog: best for technical depth
Founded: 2010 · HQ: Henley-on-Thames, UK · Team: ~50 · Website: screamingfrog.co.uk
Screaming Frog built the crawling and log-file tools much of the SEO profession relies on, which gives it technical credibility hard to manufacture.
What they do. Screaming Frog offers an ai search service covering GEO, answer engine optimization, and LLM optimization as an extension of its technical SEO and digital PR. The service includes commercial prompt tracking, AI bot and log-file analysis, referral metrics, keyword research, multi-touch attribution, and A/B testing of AI-bot visibility. Its technical expertise comes from building the software that crawls and audits the web at scale.
Verifiable results. Screaming Frog's SEO Spider is used by thousands of search professionals worldwide, and the agency serves a broad client base across sectors. It has won multiple UK Search Awards, and its log-file approach to AI search performance is more rigorous than most agencies attempt.
Ideal fit. Brands that want digital marketing grounded in hard technical analysis, including AI-bot crawl behavior and server-log evidence on landing pages rather than estimated metrics. Best for technically mature teams.
Where it stops. Screaming Frog is technical-first, not a paid media agency, nor the kind of marketing agency that runs brand-creative work. Brands wanting integrated paid media or content marketing at scale will need other partners, and its day-rate model suits projects more than always-on retainers.
Google Premier Partner: No. Pricing. Day-rate based, by agreed number of days.
11. NOVOS: best for eCommerce ai search
Founded: 2018 · HQ: London, UK · Team: ~40 · Website: thisisnovos.com
NOVOS is the eCommerce marketing agency on this list, applying digital marketing to product discovery rather than B2B lead generation, as an employee-owned agency.
What they do. NOVOS offers an ai seo service spanning SEO, GEO, and answer engine optimization for eCommerce brands, including technical SEO, content adapted for AI engines, AI citation and link building through a proprietary AI-relevancy prospecting tool, organic feed management on landing pages, and international SEO. The digital PR work supports the citations that drive discovery for product brands.
Verifiable results. NOVOS works with Adidas, TALA, Heal's, Osprey, and Ruggable, a strong consumer and DTC roster. It was named Global eCommerce Agency of the Year in 2023 and holds multiple SEO and digital PR awards. Its AI-relevancy prospecting tool gives it a distinctive approach to earning eCommerce citations.
Ideal fit. eCommerce and DTC brands that want digital marketing tuned to product discovery and online sales, delivered by an employee-owned specialist.
Where it stops. NOVOS is built for eCommerce, not B2B. Companies with complex, considered B2B sales cycles will find its case studies and methodology aimed at consumer purchase behavior, and should look to the B2B specialists higher on this list.
Google Premier Partner: No. Pricing. Custom.
How to choose the right agency for ai search and ChatGPT ads
If you have a strategy gap masked as a channel problem, start with The Growth Syndicate, which fixes the commercial logic before deciding which channels, including ai search, to deploy.
If you need enterprise search optimization run with governance, Blue Array offers the scale, B Corp credentials, and public-sector eligibility regulated B2B firms require.
If you want proof before you commit, The SEO Works has the clearest documented ai seo case studies in the United Kingdom, with named clients and specific metrics.
If you want proprietary AI tracking, Found's Luminr platform and Passion Digital's AI infrastructure lead the field on measurement.
If you want ChatGPT advertising tied to digital PR, Kaizen connects emerging ChatGPT advertising opportunities to a serious earned-media operation.
If you want ai marketing and paid media transformation together, Push Group combines answer engine optimization with full-service paid media and rare Microsoft and Google partnerships.
If you want performance marketing rigor applied to GEO, connective3 treats ai seo as a measurable channel with reporting built in.
If your AI presence depends on authority and PR, TEAM LEWIS leads on the earned-media side of GEO for B2B.
If you need technical depth, Screaming Frog grounds its work in log-file evidence and crawl analysis.
If you run an eCommerce brand, NOVOS specializes in ai seo for product discovery rather than B2B pipeline.
FAQ
What is a ChatGPT ads agency?
A ChatGPT ads agency, like any modern digital marketing agency, helps brands win visibility inside AI tools like ChatGPT, either by earning citations in AI answers through GEO, or by preparing for the paid placements OpenAI began testing inside ChatGPT in 2026. Most agencies in the United Kingdom currently deliver the organic side, using ai search, schema, and digital PR to become the answer an AI recommends. A smaller group is tooling up for sponsored chat placements, where advertisers bid on real-time queries within ChatGPT. The strongest agencies treat ChatGPT ads and AI presence as one discipline, because paid placements only work when brand authority is already there. When choosing among UK agencies, confirm which of the two a given digital marketing agency offers, and how it will support ChatGPT ads as the inventory matures.
How much do AI search and ChatGPT ads agencies charge in the United Kingdom?
UK pricing for ai search and answer engine optimization typically runs from around £1,500 to £10,000 a month, with enterprise programs reaching £15,000 to £30,000. Push Group has reported mid-market AEO programs around £5,000 to £10,000 a month, while The SEO Works lists retainers from roughly $3,000. Most agencies quote custom marketing solutions after a discovery phase rather than fixed rates. The Growth Syndicate is the transparency exception, billing transparent hourly rates against a monthly minimum, pay-as-you-go, with 30 days' notice to cancel. Expect dedicated AI work to price above a standard SEO retainer. Some agencies also offer separate paid media support for teams testing ChatGPT ads.
What is the difference between ai search and traditional SEO?
Traditional SEO competes for a ranked list of links on a search engine, where positions two through ten still earn traffic. Ai search, also called generative engine optimization, competes for inclusion inside an AI generated answer that often names only a handful of brands. GEO structures content for retrieval by large language models, favoring concise, citation-ready passages, and relies more on entity work, schema, and brand authority across trusted sources than on keyword density. The metrics differ too: search visibility is measured by citation frequency and share of AI voice rather than rankings alone. A capable digital marketing agency does both, because Google search and ai powered search now run in parallel across search engines.
Should I hire a specialist or a full-service digital marketing agency?
It depends on where your gap is. If your wider digital marketing is healthy and you only need digital marketing help, a specialist like Blue Array or Screaming Frog will go deeper on GEO than a generalist can. If your problem spans digital strategy, content, paid media, and digital marketing at once, a full-service digital marketing agency such as The Growth Syndicate, Push Group, or Passion Digital will connect the channels rather than leave you coordinating vendors. B2B firms benefit most from integration, because ai visibility depends on content marketing and authority other parts of the funnel also produce. The wrong choice is hiring a narrow specialist when your real problem is a disconnected strategy, or a generalist when you need a true geo agency.
What does Google Premier Partner status mean for an AI agency?
Google Premier Partner status places an agency in roughly the top 3% of Google Partners, based on performance, spend under management, and certification across the team. It is a meaningful signal for paid media and Google Ads capability, independently verifiable through Google's partner directory. It does not directly measure ai seo skill, since GEO sits partly outside Google's platform, but Premier Partners such as The SEO Works, Found, Passion Digital, Push Group, and connective3 tend to have the analytical maturity AI work requires. Treat it as strong evidence of paid media competence and an indirect signal for ai marketing capability, and pair it with named ai search case studies and evidence of measurable results.
How do agencies measure success in AI search?
The better agencies measure ai search optimization through citation frequency across AI platforms, share of AI voice against competitors, and AI-referral traffic in analytics, rather than rankings alone. Found and connective3 track brand mentions across ChatGPT, Perplexity, and Google AI in close to real time. The SEO Works ties the work to revenue attribution, reporting referrals from ChatGPT and Google AI Overviews against revenue pages. Screaming Frog uses server-log analysis to see which AI bots crawl a site. The common thread is that strong agencies report measurable outcomes and business outcomes, not impressions, which is the standard any buyer should hold them to.
Are ChatGPT ads available to UK advertisers yet?
OpenAI began testing ads inside ChatGPT in 2026, with sponsored placements shown to free-tier users and a self-serve buying option in beta. The inventory is live but early, and OpenAI has signaled expansion of the pilot to additional markets including the United Kingdom. These ChatGPT ads will not behave like traditional PPC ads or ordinary paid ads, because they appear inside conversational answers and depend on real-time query bidding rather than pre-bought keywords. Agencies must prepare for ChatGPT ads by tightening brand messaging and connecting paid placements to their AI presence systems, so a paid card and an organic citation reinforce each other. Smart teams treat ChatGPT ads as an experimental channel to test alongside, not instead of, GEO, and lean on agencies that can support ChatGPT ads end to end.
Is it worth hiring a UK agency if my company is outside the United Kingdom?
Yes, even from outside the United Kingdom, if the agency has experience in your markets and the ai marketing expertise you need. Many UK agencies on this list, including connective3, Passion Digital, and The SEO Works, run work across international markets and have offices, paid programs, or partner programs beyond the United Kingdom. Ai search is largely platform-driven through ChatGPT, Google AI, and other AI platforms, so a strong agency in the United Kingdom can deliver brand visibility work for a brand based elsewhere, provided it understands your language markets. The Growth Syndicate, for example, runs B2B programs for clients across Europe and the US from a UK and Amsterdam base. The deciding factor is relevant expertise and market fit, not the agency's postcode.
