The 10 Best UK AI Search (GEO/AEO) Agencies for B2B SaaS in 2026

Five criteria, applied identically to every agency using each firm’s published information as of August 2026: pricing transparency (is a price published, and what does it buy), whether AI search and SEO are delivered as one service, who owns the monitoring tooling and which engines it covers, B2B SaaS and UK specialisation, and verifiable public proof.

From £250/month, full service · AI search + SEO in one fee · Technical audit included · In-house monitoring: ChatGPT, Google AI Mode, Perplexity, Claude, Gemini · London

Scalux is an AI-native agency built for UK B2B SaaS. The £250 fee covers the whole loop: a technical audit of how AI systems read your site, prompt-set monitoring across five engines, and the SEO and content changes that move the answers, done for you rather than handed back as a report. Monitoring runs on Scalux’s own stack, not a licensed dashboard, so tracking is shaped around your buyers’ prompts rather than a tool’s defaults. The fee is fixed. No scoping exercise before you learn the price.

Choose them if: you want AI search, SEO and the technical work handled together in one fixed monthly fee, by a team that builds its own monitoring.

From £499/month, measurement only · Content work from £1,750/month · SEO not included · Monitoring via enterprise AI visibility platforms (per their methodology page) · Exeter

Tilio, founded in 2025, sells a four-layer ladder. Layer 1 tracks 50 to 100 prompts daily across ChatGPT, Perplexity and Google AI Overviews, with competitor benchmarking and a dashboard, on a 30-day rolling term. Content production starts at Layer 2 (£1,750/month), fact-checking at Layer 3 (£4,250/month), which also extends coverage to ten engines. Its £500 and £800 one-off audits are credited in full against your first three months, a mechanic we rate. Tilio positions itself alongside your existing SEO agency rather than replacing it.

Choose them if: you want to see the data on a rolling month before paying anyone for implementation, or you already have an SEO agency you trust.

Ad management from £1,500/month · SEO & AI Visibility service · No fixed-term contracts · Edinburgh

Lever is a paid-media specialist for SaaS and fintech with published fixed fees and public case studies, including Uplisting’s growth from $100K to $2M ARR. AI visibility sits alongside the PPC core rather than leading it, which is the right shape if ads are your main engine. A 2026 UK Paid Media Awards finalist.

Choose them if: paid media is your primary channel and AI search is the supporting act.

Engagements start at £3,500/month plus project fees · Dedicated GEO service · SEO, content and paid within demand gen · London · Founded 2017

Gripped has focused on B2B SaaS and tech demand generation from London since 2017, with around 25 staff, 160+ clients, a dedicated GEO offer, and a Growth Audit as the entry point. It is built for funded or revenue-strong SaaS rather than early stage, and the depth shows in its buyer-behaviour research.

Choose them if: you have the budget for full-funnel demand generation and want GEO delivered inside it.

From $5,500/month · SEO-led with AI search (GEO) · Citation tracking across ChatGPT, Perplexity, Gemini · UK

Sam Dunning’s agency pairs B2B SEO with AI search work in 90-day sprints, no long retainers. The founder brand is the point: the podcast and LinkedIn following mean you know exactly whose judgement you are buying, and the pricing page tells you what it costs before anyone calls you.

Choose them if: you want the founder in the room and SEO-led growth with AI search built in.

Pricing not published · AI search service with "Share of LLM" benchmarking · Digital PR for citation building · Nottingham + London · Founded 1999, employee-owned, B Corp

Hallam won Best LLM Adoption by an Agency at the 2026 European Search Awards and brings serious digital PR muscle to citation building: earning the third-party mentions AI engines lean on in competitive category queries. A safe pair of hands for procurement-led engagements.

Choose them if: you operate across markets, carry brand risk, and buy through formal procurement.

Pricing not published · AI search service across ChatGPT, Gemini, AI Mode, Perplexity and other platforms · Prompt tracking, AI bot analysis, referral metrics, attribution · Henley-on-Thames

The company behind the SEO Spider crawler applies the same technical depth to AI search: commercial prompt tracking, AI bot analysis and attribution. If crawlability, indexation or site structure is limiting what AI engines can retrieve, this is the specialist to unpick it.

Choose them if: your site is large or complex and the website itself may be holding back performance.

Pricing not published · GEO service: auditing, structuring and optimising content, data and site architecture · Bespoke SEO, GEO and data training courses · Google Premier Partner · Wiltshire

Varn focuses on making sites, data and content structures legible to generative engines, and training is core to its offer: bespoke SEO, GEO and data courses built around your website’s real issues, including workshops on GEO and AI search developments. A certified Google Premier Partner, it suits technically minded teams with complex websites or unclear content structures.

Choose them if: you want your in-house team trained to run AI search themselves, or the fix is architectural and you have your own people to execute.

Pricing not published · Dedicated GEO service (ChatGPT, Perplexity, Gemini) · Integrated with SEO and digital PR · Nottingham + London

Impression’s GEO service is about earning mentions and citations across AI surfaces, connected to SEO, digital PR and authority building. It fits larger teams that want AI search supporting a broader acquisition strategy rather than running as a side project.

Choose them if: you are a larger team and AI search needs to slot into a wider performance programme.

Pricing not published · AI SEO service covering SearchGPT and Google AI Overviews · Luminr, its own visibility technology · London

Found connects AI search to SEO, paid media, analytics and content, supported by Luminr, its own visibility platform. Built for bigger marketing teams that want one agency across the stack, with AI search as one thread of it.

Choose them if: you want AI search connected to everything else you run, under one roof.

Five questions that sort the market quickly:

1. Is pricing published? If not, expect an enterprise-style scoping process before you learn a number.
2. What does the entry fee include? Measurement, implementation, or both. Several entry tiers on this list are measurement only.
3. Is SEO in the same retainer? AI engines still lean heavily on pages that already rank: Ahrefs found 38% of Google AI Overview citations come from the top 10 results on the same search, with another 31% from positions 11–100 — so roughly seven in ten cited pages rank somewhere. That top-10 share was 76% a year earlier, which tells you the surface is widening, not that rankings stopped mattering. Splitting SEO and AI search into two retainers still means paying twice for the same physics.
4. Who owns the monitoring stack, and which engines does it cover? Licensed dashboards are fine, but know what you are paying a margin on.
5. Do they know your segment? A B2B SaaS buying journey is not a local-services one. Ask for evidence in your category.