10 Best GEO Agencies in London to Hire in 2026

Founded: 2019 

Location: Floor 24, The Shard, 32 London Bridge St, London SE1 9SG 

Notable Clients: Gartner, Coca-Cola, Yomly, Pazazz

Tenet is a London-based GEO and SEO agency that helps brands improve visibility on both traditional search engines and AI-driven platforms. The team focuses on LLM SEO and Generative Engine Optimisation to help businesses appear in answers generated by tools like ChatGPT, Claude, Perplexity, and Gemini.

With 300+ clients served across 15+ countries and 450+ projects delivered, Tenet brings a data-led approach to AI search visibility. The team combines technical SEO, structured content strategy, and entity-based optimisation to improve how AI systems understand and reference a brand online.

A key part of Tenet's GEO work is LLM optimization. Rather than chasing rankings alone, the team focuses on getting brands referenced within AI-generated responses. 

This involves building FAQ-driven pages, improving semantic clarity, expanding brand mentions on trusted platforms like news sites, forums, and directories, and optimising site architecture for LLM crawlers.

We also handle the foundational SEO work that makes GEO sustainable: technical audits, keyword research, on-page content strategy, link building, and local SEO. 

Here is an example of the GEO work we did for one of our client Yomly: 

We also have a solid 98% client satisfaction rate and has supported growth across sectors, including e-commerce, healthcare, finance, SaaS, and real estate.

Services include: LLM SEO, entity optimisation, structured content, GEO audits, technical SEO, link building, local SEO, conversion rate optimisation

Contact Details:

• Email: hello@wearetenet.com
• Phone: +44 7418 379209
• Website: wearetenet.com

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• Founded: 2005 
• Founder: Tina Judic
• Location: Johnson Building, Johnson Gardens, 77 Hatton Garden, London
• Notable Clients: Bonmarché, Adecco, ManyPets, Puma
  

Found is one of the more established agencies to seriously expand into GEO (Generative Engine Optimization). The agency built its offering around a proprietary methodology called Everysearch, designed to track visibility across both traditional and AI-driven search.

Using its platform Luminr, Found monitors how brands appear in AI-generated responses, identifies emerging query trends, and helps improve AI search visibility. Its GEO services include structured data implementation, entity mapping, AI-ready content creation, and citation building.

The agency has also been featured on BBC Radio 5 Live and BBC Radio 4 for its work in AI search. Found is best suited for established brands that already have strong organic traffic and want more visibility across AI platforms through detailed reporting and advanced tooling.

Services include: GEO strategy, AI visibility tracking via Luminr, Everysearch methodology, entity optimisation, structured data, citation development, technical SEO, and content strategy.

Contact Details:

• Website: found.co.uk
• Email: info@found.co.uk
• Phone: +44 20 7653 6709

• Founded: 2019
• Location: Whitton, Twickenham, London 

Genie Crawl is a boutique digital marketing agency with a strong SEO background that has expanded into GEO services. The agency operates on rolling monthly agreements, making it a practical choice for businesses wanting to test AI search optimisation without long-term contracts.

Clients often highlight the agency’s hands-on approach, fast communication, and tailored strategies. Genie Crawl also holds more than 300 five-star Google reviews, reflecting strong client satisfaction for an agency of its size.

Its GEO services focus on improving visibility across AI-powered search platforms through content structuring, topical authority building, and citation work that helps AI systems recognise brands as credible sources. For smaller London businesses looking for accessible GEO support, Genie Crawl is one of the more flexible options available.

Services include: GEO, SEO, PPC, Google Ads, social media marketing, content optimisation, and reputation management.

Contact Details:

• Website: geniecrawl.com
• Email: contact@geniecrawl.com
• Phone: +44 20 8099 7559

• Founded: 2016 
• Founder: Joshua George
• Location: Studio 10 Shoreditch Stables 138 Kingsland Rd Hoxton, London
• Notable Clients: Humax, Plumbworld, Luxeire, Dejex.

ClickSlice, founded by Joshua George, operates from Shoreditch and has developed a dedicated GEO approach rather than simply relabelling traditional SEO services. The agency supports its positioning with published case studies and a content-driven strategy focused on visibility in generative search environments.

ClickSlice is especially suited for e-commerce and SaaS brands already investing in SEO and looking to expand into GEO as part of a wider organic growth strategy. The agency uses data and automation to scale campaigns while applying the same structured process used in traditional SEO.

The team also holds a 4.9 Google rating, with clients often highlighting strong reporting and measurable revenue growth.

Services include: GEO, SEO, e-commerce SEO, SaaS SEO, technical SEO, link building, content strategy, and AI search visibility.

Contact Details:

• Website: clickslice.co.uk
• Email: hello@clickslice.co.uk
• Phone: 20 3287 3638

• Founded: 2015
• Founder: Sebastian Ellis
• Location: 72-74 Dean Street, Soho, London
• Notable Clients: NHS, Mahindra, Halldale Group, WeyBridge

Ellis Digital is an award-winning agency focused on AI search optimisation and GEO. The team treats GEO as a separate discipline from SEO, clearly distinguishing traditional Google ranking tactics from strategies built for AI platform visibility.

The agency focuses on entity optimisation, topical authority, and structured content to help brands appear across platforms like ChatGPT, Google AI Overviews, and Claude. Ellis Digital is also known for its client-centered approach, where senior specialists work directly with businesses instead of delegating projects to junior teams.

Based in Soho, the agency is a practical option for boutique and mid-sized brands looking to improve AI search visibility without committing to large enterprise retainers.

Services include: GEO, AI search visibility, entity optimisation, structured content, topical authority development, and SEO.

Contact Details:

• Website: ellis.digital
• Email: info@ellis.digital
• Phone: +44 207 183 7787

• Founded: 2019
• Founder: Guido Ampollini
• Location: 33 Broadwick Street, Soho, London
• Notable Clients: UniCredit, Prada, Expedia, Diesel

GA Agency is a London-based digital marketing agency specialising in international SEO and Generative Engine Optimisation (GEO). A key differentiator is its in-house team of more than 60 specialists fluent in 18 languages, allowing the agency to execute GEO strategies across global markets rather than only English-language platforms.

The agency tracks how brands appear across AI platforms such as ChatGPT, Google AI Overviews, Gemini, and Bing Copilot. This gives clients visibility into AI citations, competitor benchmarks, and search gaps.

GA Agency’s GEO services include structured content, metadata optimisation, semantic clustering, and machine learning-driven insights. Its multilingual expertise makes it especially valuable for brands operating across multiple regions and search ecosystems.

Services include: GEO, international SEO, multilingual content, AI visibility tracking, technical SEO, and paid media.

Contact Details:

• Website: ga.agency
• Email: hello@ga.agency
• Phone: +44 7504 941579

• Founded: 2020
• Founder: Will Tombs
• Location: London
• Notable Clients: Yotel, Black Piano, Skyscanner, Foundry

Buried Agency is one of the few London agencies built entirely around Generative Engine Optimisation (GEO) rather than treating it as an SEO add-on. The agency focuses heavily on how Large Language Models (LLMs) process training data, shape brand perception, and influence citation frequency in AI-generated answers.

A notable project with the home beer brand Pinter highlighted this approach. When the brand failed to appear in AI search responses, Buried identified gaps in training data association and improved visibility through comparison content, category alignment, and strategic third-party placements.

This diagnostic, research-driven approach makes Buried a strong choice for brands operating in competitive industries where AI recognition and category authority matter.

Services include: GEO strategy, LLM content architecture, citation engineering, category association, entity clarity, and training data optimisation.

Contact Details:

• Website: buriedagency.com
• Email: will@buriedagency.com 
• Phone: +44 (0)7518 511883

• Founded: 2010 
• Founder: Philip Young
• Location: 13 Austin Friars, London 
• Notable Clients: Aramex, Huawei, Supermicro, Snappic

Bird Marketing is a multi-award-winning digital agency with offices in London, Essex, and Glasgow. The agency offers structured GEO service packages, making it easier for businesses to engage with GEO as a clearly defined service rather than a broad strategic add-on.

Its GEO services include AI-focused content creation, schema markup implementation, keyword optimisation for LLM readability, technical optimisation for AI crawlers, citation engineering, voice search readiness, and LLMs.txt setup.

Bird Marketing is also recognised for strong project management and transparency, earning positive reputations on Google and Clutch. For businesses that prefer predictable monthly packages instead of complex retainers, the agency provides a practical and organised entry point into the GEO space.

Services include: GEO, SEO, technical SEO, content at scale, schema markup, citation engineering and voice Search Readiness.

Contact Details:

• Website: bird.co.uk
• Email: london@bird.co.uk
• Phone: +44 20 8338 1206

• Founded: 2022
• Founder: Chris Hinchly 
• Location: Brunel House, 2 Fitzalan Road, Cardiff, CF24 0EB 
• Notable Clients: Life Ledger, BGreater, Auditel

Appear Online has developed one of the most comprehensive GEO frameworks in the UK market. The agency focuses on advanced areas that many generalist firms overlook, including hallucination risk management, AI citation confidence, and cross-platform entity consistency.

This makes Appear Online especially valuable for regulated industries such as finance and healthcare, where inaccurate AI-generated information can create compliance risks. The agency improves visibility by ensuring AI systems can access verified, structured brand data that increases trust and citation accuracy.

Its framework is built around four pillars: AI-ready content architecture, E-E-A-T alignment, entity mapping, and technical schema foundations. By focusing on “AI Mode” readiness, Appear Online helps brands adapt to the faster pace of generative search.

Services include: GEO, E-E-A-T optimisation, entity mapping, schema markup, hallucination risk management, AI-ready content, and technical SEO.

Contact Details:

• Website: appearonline.co.uk
• Email: hello@appearonline.co.uk
• Phone:  029 2190 0044

• Founded: 2012
• Founder: Mike Grindy
• Location: 4th Floor, Holborn Tower, WC1V 6PL, London
• Notable Clients: Knight Frank, MAZDA, MoneyExpert, Splitit, and Quintain Living

Passion Digital is a full-service performance marketing agency and a Google Premier Partner, placing it among the top 3% of agencies globally. Its GEO offering is integrated within a broader digital marketing ecosystem that includes SEO, PPC, and paid social campaigns.

The agency has invested in proprietary AI tools for forecasting, content targeting, and AI search monitoring, particularly for B2B and enterprise brands. Passion Digital was also recognised as a Drum Recommended Agency in 2024, highlighting its service quality and client satisfaction.

For B2B and technology companies, the agency provides a more enterprise-focused approach to GEO. Its scale and Premier Partner status also give access to beta tools and search data that smaller specialist agencies may not have.

Services include: GEO, integrated SEO & PPC, paid social, content strategy, AI search monitoring, and B2B performance marketing.

Contact Details:

• Website: passiondigital.co.uk
• Email: enquiries@passiondigital.co.uk
• Phone: 020 3432 1360 

Platforms like ChatGPT, Gemini, Perplexity, and Google AI Overview are now part of how buyers research, compare, and make decisions. Brands that do not appear in those responses are missing a growing share of the discovery journey.

The agencies listed here are doing genuine GEO work, with distinct strengths, different price points, and different best-fit use cases. The right choice depends on your existing SEO foundation, the sector you operate in, the scale of the campaign, and how you want GEO to sit within your broader digital strategy.

To speak with Tenet about GEO for your London business, feel free to email hello@wearetenet.com or call +44 7418 379209.

Traditional SEO focuses on helping your website rank higher in search results, where users browse a list of links and choose what to click.

GEO, on the other hand, focuses on getting your brand mentioned or cited directly within AI-generated answers on platforms like ChatGPT, Perplexity, and Google’s AI Overviews.

GEO typically shows early signs of visibility within 8 to 12 weeks, especially as your content starts getting picked up by AI systems.

However, building a consistent presence takes longer as becoming a frequently cited and trusted source in AI-generated responses requires ongoing optimization, content improvements, and authority building over time.

GEO pricing varies based on how mature your current SEO and content setup is, and how aggressively you want to invest.

For most businesses, entry-level GEO support starts around £2,000 to £4,000 per month. More advanced strategies that include content production, entity optimization, and ongoing tracking can range from £5,000 to £12,000+ per month.

The key difference from traditional SEO pricing is that GEO often requires tighter content structuring and more frequent updates, which can increase ongoing costs.

Yes, because GEO does not replace SEO. It builds on it.

AI systems still rely on signals that come from traditional SEO, like site authority, backlinks, and overall content quality. If your SEO foundation is weak, your chances of being cited in AI-generated answers are also low.

In practice, GEO shifts the focus from just ranking pages to making your content easier to extract, summarize, and trust. But without SEO, there is nothing strong enough for AI systems to pick from in the first place.

GEO performance is measured differently from traditional SEO. Since many AI-driven results do not lead to clicks, traffic alone is not a reliable metric.

Instead, success is measured through how often your brand appears in AI-generated responses, how frequently it is cited as a source, and how visible it is across different AI platforms over time.