UK GEO agencies compared: who each one is for (2026).

There is no single best GEO agency in the UK. There is a best fit, and it depends on your platform, your sector and your budget. Below are eighteen UK agencies that sell GEO (generative engine optimisation, also called AEO or AI search optimisation): what each says it does, who it suits, and what it publishes about price and results.

A disclosure, and how we compiled this

We are VALKER, one of the agencies listed. To keep this fair, every fact about the other agencies comes from their own websites, checked on 20 October 2026, and their claims are reported as their claims. Where an agency doesn't publish something, we say so rather than guess. Agencies are listed alphabetically.

At a glance

How to choose

Start with fit. If you sell on Shopify, a Shopify specialist understands your platform's limits. If you're B2B with a long sales cycle, look for an agency that ties AI visibility to pipeline. Then look at the shape of the deal: a monthly retainer with a minimum term suits an ongoing programme; a fixed package suits a business that needs the groundwork done once. Finally, ask for a result with a named client, a starting point and a method. A percentage with no baseline tells you very little.

Charle

A London agency, established in 2018, that does GEO for Shopify and Shopify Plus brands only, alongside building and developing stores. Its GEO page states a +58% average GEO visibility uplift across 100+ Shopify brands and shows Rhute at +1,030% GEO visibility growth. Best for Shopify brands that want a platform specialist. Charle's GEO page.

Click Intelligence

A Cheltenham agency, founded in 2013, with a London office and, it says, more than 150 staff. It publishes three GEO plans: Standard from £1,000 a month for startups, Premium from £3,000 for SMEs and Pro from £5,000 for growing enterprises, with a stated 100% money back guarantee, and runs its own Click Insights trackers for AI Overviews and LLM visibility. Its GEO page reports an anonymised SaaS client going from 1 to 448 AI Overview appearances in 12 months. Best for startups and SMEs that want a packaged monthly plan. Click Intelligence's GEO page. VALKER vs Click Intelligence.

ClickSlice

A founder-led London agency, founded by Joshua George in 2016, that describes itself as a full-service ecommerce growth agency. It says it is a Profound Certified Agency Partner, and its Furl case study reports AI share rising from around 5% to nearly 15%. Best for ecommerce brands wanting GEO next to SEO and PPC. ClickSlice's GEO page.

Exposure Ninja

An integrated agency with offices in London and Nottingham, B Corp certified in 2023, and a Global Agency Awards 2026 winner for Integrated Search Agency of the Year. Its Value Capital Funding case study reports conversions from ChatGPT rising from 1 to 12 a month. Best for lead-generation businesses that want AI search bundled with SEO, content and digital PR. Exposure Ninja's AI search page.

Found

A London agency founded in 2005 as Artemis Eight and renamed Found in 2010, part of the independent Tomorrow network and running its own visibility platform, Luminr. It says it works with big brands and those that aspire to be big. Best for larger or growth-stage brands wanting GEO joined up with PR, paid media and data. Found's GEO page. VALKER vs Found.

Hallam

A B2B marketing agency with offices in Nottingham and London, 100% employee owned and B Corp certified, which won Best LLM Adoption and Integration by an Agency at the European Search Awards 2026. It tracks clients on its own Share of LLM measure and reports a 45% increase in six months for an unnamed B2B SaaS client. Best for B2B and complex sites. Hallam's AI search page.

Impression

A Nottingham agency with offices in London, Manchester and New York, which says it is 120+ strong, independent and a certified B Corporation. It runs GEO inside integrated SEO, digital PR and paid media work, with its own tools, including Alexis for LLM visibility tracking. Its Tensar case study reports 1,793 AI Overview citations and 7.9 million impressions across AI Overview keywords after 12 months. Best for ecommerce, B2B, SaaS and fintech brands wanting GEO in a joined-up programme. Impression's GEO page. VALKER vs Impression.

Kaizen

A London agency founded in 2013, with a Manchester hub and a team of 40+, working with enterprise brands and scale-ups including, it says, The LEGO Group and adidas. Its GEO work is tied to digital PR and social, covering ChatGPT and Gemini as standard plus a third platform of the client's choice. It reports 1,900% year-on-year growth in LLM traffic for Gozney. Best for consumer brands that want GEO driven by PR. Kaizen's GEO page. VALKER vs Kaizen.

MarGen

A Sheffield GEO and AEO specialist for B2B SaaS, financial services, legal, healthcare and premium ecommerce. It publishes its prices, all excluding VAT: a £2,950 audit credited to the first month, Foundation at £2,950 a month on a 3-month minimum, Authority at £5,950 a month on a 12-month minimum, and Dominance from £12,950 a month. It reports an anonymised SaaS client going from 9% to 38% citation share across 180 buyer queries in 14 months, and states that it does not guarantee rankings or citations. MarGen's packages.

Passion Digital

A London agency founded in 2012, with a team of around 30, part of Stellar, a performance network powered by Pixis AI. It serves B2B and professional service brands, and reports an anonymised aesthetic medicine group's LLM visibility share rising from 7.8% to 15.6%. Best for B2B and professional services wanting GEO alongside SEO, paid and data. Passion's AI search page.

Propellernet

A Brighton agency, B Corp since 2021, that launched AnswerThePublic in 2014 and has since sold it, and now runs its own AI visibility tracker, Ebb. It says PureGym's blog appears in over 7,000 Google AI Overviews. Best for consumer brands, especially in travel, finance and retail, wanting GEO led by digital PR and content. Propellernet's GEO page.

Rank4AI

A small Colchester specialist in AI search visibility only, for professional services, B2B and local specialist businesses. It publishes prices: monthly plans from £800 to £1,000 depending on where you read on its pricing page, a full agency service from £1,500 a month, and an AI Visibility Audit at £1,500 one-off. A client testimonial reports 4 of 6 AI platforms now recommending the business. Rank4AI's pricing.

Reboot Online

A London agency, fully remote and four days a week by its own description, whose GEO covers prompt testing, visibility mapping and citation analysis alongside AiPR, its AI-focused digital PR. It publishes GEO pricing from £2,500 a month, with GEO audits typically from £5,000. Its Alan Boswell case study reports a 194.72% rise in LLM referral traffic. Best for larger brands in competitive categories wanting PR-led GEO. Reboot's GEO page. VALKER vs Reboot Online.

Re:signal

A remote organic growth agency, with offices listed in London, Manchester and Los Angeles, that works with ecommerce brands only. Its AI Discoverability Audit is from £10,000 as a fixed one-off fee, and it says typical engagements begin at £10k a month. It cites 89 Search Awards wins; we couldn't find a published GEO result with numbers. Best for large ecommerce brands with big budgets. Re:signal's AI search page. VALKER vs Re:signal.

The SEO Works

An employee-owned agency headquartered in Sheffield, founded in 2009, with over 80 specialists and offices including Leeds and London. It offers GEO, AEO and AI SEO alongside SEO, PPC and digital PR, and reports a 287% quarter-on-quarter rise in AI Overview citations and a 121% rise in ChatGPT referrals for DHL. It doesn't publish prices. Best for brands, mid-market firms and SMEs wanting GEO inside a broad search retainer. The SEO Works' GEO page. VALKER vs The SEO Works.

Tilio

A small AEO and GEO specialist based near Exeter, Devon (a trading name of Luto Ventures Ltd). Its managed programme has no published price; its fractional GEO lead is from £1,450 a month (Specialist) or £2,350 (Director), on a three-month minimum. Its published result is for its own site: from 3% to a 27% peak in unbranded AI visibility between March and September 2026. Some directories still quote older plans from £499 a month, which its site no longer shows. Best for marketing teams and agencies that want a specialist alongside them. Tilio's AEO page. VALKER vs Tilio.

VALKER (us)

A one-person studio in Stratford-upon-Avon, founded in 2024, where the founder, George Valker, does the work. Our GEO Launch is £2,499 fixed, with no VAT: readable pages, published facts, answer pages and comparisons built in 48 hours, then 90 days of tracking and new pages. After that, GEO Growth is £700 a month, month to month, with no minimum term. Sable Management, a new agency, was named first by ChatGPT four days after launch, and VMEP went from about 2% to 30% AI visibility in three months. The honest limits: we're younger and smaller than everyone else on this list, we take a few launches a week at most, and we have no awards. Best for new businesses and small digital firms that want the groundwork done fast at a fixed price. GEO Launch, and how we compare with each agency.

Whitehat SEO

A London agency founded in 2011, a HubSpot Diamond Solutions Partner, which runs SEO, AEO and GEO together for UK B2B companies. It publishes prices excluding VAT: done-with-you AEO from £1,967 a month and done-for-you from £2,967 a month, on 30-day rolling contracts. We couldn't find a published AEO result with numbers. Best for B2B companies on HubSpot that want AEO linked to lead attribution. Whitehat's AEO page.

Questions to ask any of them

Ask to see where you stand before you pay: which questions they'll track, on which AI tools, and who gets named instead of you. Ask what changes in the first week, how they measure it, and what you keep if you stop. We go through these in what GEO should cost. And whoever you pick, check your site with the free ChatGPT view first. If AI crawlers can't read it, that's the first job for any of us.