ChatGPT marketing now covers much more than AI-assisted copywriting. Agencies in this space increasingly work on AI search visibility, Generative Engine Optimisation (GEO), Answer Engine Optimisation (AEO), content strategy, digital PR, and the technical signals that influence how brands appear in ChatGPT and other AI platforms. The companies below include London-based agencies and providers serving the London market, with different approaches to combining AI search with broader digital marketing.
Lengreo combines B2B digital marketing with AI Search Optimization and Answer Engine Optimization. Its AI search service focuses on how platforms such as ChatGPT, Gemini, and Perplexity interpret, retrieve, and surface business information. The work covers conversational content, semantic keyword and intent mapping, content structuring, schema, and broader contextual optimisation.
This sits alongside Lengreo’s established SEO, content marketing, lead generation, paid advertising, demand generation, and digital strategy services. Its published work includes UK client projects, although the locations currently listed on its official website are Amsterdam and Kyiv rather than London.
Key Facts
- Best for: B2B companies combining AI search visibility with lead generation
- Core services: ChatGPT marketing, AI search optimisation, AEO, SEO, content marketing, paid advertising, lead generation
- AI platforms: ChatGPT, Google Gemini, Perplexity
- Client types: B2B, SaaS, technology, professional services
- Location: Amsterdam and Kyiv, with UK client experience
- Notable strength: Connecting AI search optimisation with broader acquisition and demand generation
Contactgegevens
Kaizen has a dedicated ChatGPT SEO and AI search practice alongside its established SEO and digital PR work. Its London and Manchester teams help companies analyse how their sites and content are interpreted by AI systems, map the questions audiences ask, and create or optimise material designed for conversational search.
The agency combines ChatGPT optimisation with competitor intelligence, technical SEO, content strategy, digital PR, and reporting. It explicitly works across ChatGPT, AI Overviews, Gemini, and other emerging search surfaces, making it relevant for brands that want AI visibility integrated with a wider organic strategy.
Key Facts
- Best for: Established brands combining AI search, SEO, and digital PR
- Core services: ChatGPT SEO, GEO, SEO, content strategy, digital PR, social
- AI capabilities: AI content mapping, ChatGPT optimisation, competitor intelligence, AI visibility reporting
- Markets: UK and international
- Location: London and Manchester
- Notable strength: Combining off-site authority building with AI search optimisation
Contactgegevens
- Website: kaizen.co.uk
- E-mail: [email protected]
- Adres: 3a, Zetland House, 5-25 Scrutton St, London, EC2A 4HJ
- LinkedIn: www.linkedin.com/company/kaizen-search-marketing
- Instagram: www.instagram.com/kaizenhq
Go Up is a London search marketing agency with a dedicated AI SEO and GEO service. Its approach treats ChatGPT, Claude, Gemini, Perplexity, and Google AI experiences as additional discovery environments that need to be incorporated into organic search strategy.
Campaigns can cover technical audits, content marketing, digital PR, authority building, and reporting on AI-generated traffic and prompts. This makes the agency particularly relevant for companies that do not want to separate traditional SEO from emerging AI search optimisation.
Key Facts
- Best for: Companies wanting SEO and AI visibility managed together
- Core services: AI SEO, GEO, technical SEO, content marketing, digital PR
- AI platforms: ChatGPT, Claude, Gemini, Perplexity
- Location: London
- Notable strength: AI visibility integrated directly into search marketing campaigns
Contactgegevens
- Website: www.goup.co.uk
- Telefoon: 0207 871 7662
- E-mail: [email protected]
- Adres: 20 Old Street, London, EC1V 9AB
- LinkedIn: www.linkedin.com/company/go-up-ltd
- Twitter: x.com/go_up_agency
- Instagram: www.instagram.com/go_up_agency
Passion Digital provides Generative Engine Optimisation as part of a wider digital marketing offering covering SEO, paid media, social advertising, analytics, and content. Its GEO work focuses on visibility inside ChatGPT, Gemini, Perplexity, Claude, and Google AI experiences.
The London agency combines entity optimisation, research, AI performance tracking, content work, and established SEO techniques. This approach can suit companies looking for AI search expertise without moving away from a broader performance marketing relationship.
Key Facts
- Best for: Companies needing AI search alongside performance marketing
- Core services: GEO, SEO, paid media, social advertising, analytics
- AI platforms: ChatGPT, Perplexity, Gemini, Claude, Google AI
- Industries: B2B, professional services, travel, finance, charities, ecommerce
- Location: London
- Notable strength: GEO incorporated into a broader digital marketing service
Contactgegevens
- Website: passion.digital
- Telefoon: 02034321360
- E-mail: [email protected]
- Adres: 4th Floor, Holborn Tower, WC1V 6PL, London
- LinkedIn: www.linkedin.com/company/passion-digital
- Instagram: www.instagram.com/passion_digital
Whitehat combines AI-supported marketing operations with AEO, SEO, content, publishing, measurement, and marketing technology. Its AEO service is designed around gaining visibility within answers generated by ChatGPT, Perplexity, Google AI Overviews, and related discovery tools.
The agency positions human marketers alongside its AI systems rather than offering fully automated content production. It also has substantial HubSpot capabilities, which can make it relevant to companies wanting AI-oriented acquisition and content connected with their existing CRM and inbound marketing setup.
Key Facts
- Best for: B2B and inbound marketing teams
- Core services: AEO, SEO, content, inbound marketing, marketing automation
- AI focus: AI-assisted marketing operations and AI answer visibility
- Platforms: ChatGPT, Perplexity, Google AI Overviews
- Location: London
- Notable strength: Combining AI marketing processes with HubSpot and WordPress environments
Contactgegevens
- Website: whitehat-seo.co.uk
- Telefoon: +44 (0) 208 834 4795
- E-mail: [email protected]
- Adres: 80A Uxbridge Road, London W12 8LR
- LinkedIn: www.linkedin.com/in/clwyd-probert
- Facebook: www.facebook.com/WhitehatInboundMarketing
- Twitter: x.com/WhiteHatSEOUK
- Instagram: www.instagram.com/whitehat_inbound
Crouch End Media is a North London agency offering SEO and AEO alongside web development and AI transformation services. Its AI search work is specifically structured around helping companies appear as cited sources in ChatGPT, Perplexity, Gemini, and Google AI Overviews.
The process covers technical health, website structure, schema, answer-focused content, entity signals, and ongoing measurement. Its positioning is relatively practical and closely connected to conventional SEO rather than treating AEO as an isolated service.
Key Facts
- Best for: SMEs wanting hands-on SEO and AEO support
- Core services: AEO, SEO, web design, development, AI transformation
- AI platforms: ChatGPT, Perplexity, Gemini, Google AI Overviews
- Location: Crouch End, North London
- Notable strength: Integrating technical website work with AI search optimisation
Contactgegevens
- Website: www.crouchendmedia.co.uk
- Telefoon: +44 7928 545133
- Adres: 67 Weston Park, Crouch End, London N8 9TA
- LinkedIn: www.linkedin.com/company/crouchendmedia
- Facebook: www.facebook.com/cemltd
- Twitter: x.com/crouchendmedia
Figment focuses on search visibility for expert-led businesses, with its current offering extending traditional SEO into AI search. The agency works on helping businesses become discoverable and credible when potential customers use Google, ChatGPT, and other answer-driven platforms.
Its positioning is particularly relevant to professional and expertise-based companies where authority, educational content, and search visibility play a significant role in lead acquisition. Rather than approaching ChatGPT as a standalone campaign channel, Figment incorporates AI discovery into a broader organic search strategy.
Key Facts
- Best for: Expert-led and professional service businesses
- Core services: AI SEO, SEO, content and search visibility
- AI focus: Visibility in ChatGPT and AI-driven search
- Market: London and UK
- Notable strength: Search strategy designed around authority-led businesses
Contactgegevens
- Website: www.figmentagency.com
- Telefoon: 020 3642 2228
- Adres: 1 Bucklands Wharf Thames Side, Kingston upon Thames, KT1 1TF
- LinkedIn: www.linkedin.com/company/figment-agency
- Facebook: www.facebook.com/pages/Figment-Agency/204234156283360
- Twitter: x.com/figmentagency
GA Agency provides Generative Engine Optimisation designed to increase visibility within ChatGPT, Perplexity, Gemini, and other AI-driven discovery platforms. Its work combines technical optimisation, conversational content, AI keyword strategy, structured information, and established SEO techniques.
The London agency has an international and multilingual orientation, making it particularly relevant to companies managing visibility across more than one market or language. GEO sits alongside broader SEO, content marketing, paid media, and international digital marketing capabilities.
Key Facts
- Best for: International and multilingual brands
- Core services: GEO, SEO, AI content, content marketing, paid media
- AI platforms: ChatGPT, Gemini, Perplexity
- Location: London
- Notable strength: Multilingual GEO and international search strategy
Contactgegevens
- Website: ga.agency
- E-mail: [email protected]
- Adres: 33 Broadwick Street, Soho, W1F 0DQ
- LinkedIn: www.linkedin.com/company/ga-agency
POLARIS is a London digital marketing agency whose search offering now includes Generative Engine Optimisation. Its GEO work is based on organising brand, service, product, and content information so that large language models can interpret and include it more accurately in generated responses.
The agency combines AI content work with technical optimisation and digital PR designed to strengthen citations and off-site authority. Its broader focus on B2B SEO makes POLARIS particularly relevant for companies using organic search as a lead generation channel.
Key Facts
- Best for: B2B companies
- Core services: GEO, B2B SEO, digital PR, content
- AI focus: LLM inclusion, brand citations, AI content
- Location: London
- Notable strength: Combining GEO with B2B search strategy and digital PR
Contactgegevens
- Website: www.polarisagency.com
- E-mail: [email protected]
- Adres: Building 1, Chalfont Park, Chalfont St Peter, Gerrards Cross SL9 0BG
- LinkedIn: www.linkedin.com/company/polaris-uk
- Twitter: x.com/PolarisLondon
Propeller offers AI SEO services focused on increasing brand visibility in ChatGPT, Perplexity, Gemini, and Google AI experiences. Its approach includes entity optimisation, GEO, LLM tracking, schema, technical improvements, content restructuring, and authority building.
The agency has particular experience in hospitality, travel, and lifestyle marketing. That sector background gives its AI search offering a more defined vertical focus than agencies providing GEO primarily as a general technical SEO service.
Key Facts
- Best for: Hospitality, travel, and lifestyle brands
- Core services: AI SEO, GEO, entity optimisation, content, authority building
- AI platforms: ChatGPT, Perplexity, Gemini, Google AI
- Location: London and New York
- Notable strength: AI search services backed by hospitality and lifestyle marketing experience
Contactgegevens
- Website: www.propeller.co.uk
- Telefoon: +44 20 7836 2736
- E-mail: [email protected]
- Adres: 42 Colebrooke Row, London, N1 8AF
- LinkedIn: www.linkedin.com/company/propeller-digital
- Instagram: www.instagram.com/propellerdigital
BAMS Digital operates a dedicated Generative Engine Optimisation practice alongside SEO, PPC, content, and broader digital marketing services. Its GEO work is structured around AI visibility audits, content architecture, authority signals, entity recognition, citations, and monitoring across major LLM platforms.
The company states that it established permanent offices in London and Newcastle and later developed a dedicated GEO practice. This makes it relevant to organisations that want AI search work handled within a multi-channel marketing relationship rather than by a specialist search-only consultancy.
Key Facts
- Best for: Companies wanting GEO within a multi-channel marketing strategy
- Core services: GEO, SEO, PPC, content, outreach
- AI platforms: ChatGPT, Gemini, Perplexity, Claude, Copilot
- Location: London and Newcastle
- Notable strength: Dedicated GEO practice combined with wider digital marketing
Contactgegevens
- Website: www.bams-digital.com
- E-mail: [email protected]
- Adres: 16-18 Monument St, London, EC3R 8AJ, UK
- LinkedIn: www.linkedin.com/in/alisa-bolokhovets
- Twitter: x.com/ABolokhovets
- Instagram: www.instagram.com/alisa.bolokhovets
BE VISIBLE is an AEO and GEO agency focused heavily on SaaS, technology, and AI companies. Its work targets brand inclusion and citations inside ChatGPT and other generative search systems using a combination of SEO, digital PR, content, reputation signals, analytics, and AI-focused optimisation.
The agency also offers services around ChatGPT advertising, Reddit for GEO, AI automation, and AI search analytics. London is listed as one of its operating locations and as a hub for UK AEO programmes.
Key Facts
- Best for: SaaS, tech, AI, fintech, and other B2B technology brands
- Core services: AEO, GEO, SEO, AI PR, content, AI search analytics
- AI focus: ChatGPT visibility and citations
- Location: London with additional international operations
- Notable strength: Narrow focus on AI search for technology companies
Contactgegevens
- Website: bevisibleagency.com
- E-mail: [email protected]
- LinkedIn: www.linkedin.com/company/geoagency
- Instagram: www.instagram.com/bevisibleseo
AgentCraft-AI is a London-based AI agency combining generative engine optimisation with AI development and automation. Its GEO work includes entity-focused pages, structured FAQs, schema, machine-readable information, and content intended to help ChatGPT, Perplexity, Gemini, and Google AI systems understand and cite a business accurately.
Unlike conventional SEO agencies moving into AI search, AgentCraft-AI also works on custom AI agents, workflow automation, RAG applications, SaaS products, and AI integrations. It may therefore suit companies whose marketing AI requirements extend into operational or product development.
Key Facts
- Best for: SMEs combining GEO with AI development or automation
- Core services: GEO, AI agents, automation, AI search, SaaS development
- AI platforms: ChatGPT, Perplexity, Gemini, Google AI
- Location: Romford, London
- Notable strength: Combining marketing visibility with technical AI implementation
Contactgegevens
14. Strategic Edge Solutions
Strategic Edge Solutions provides content marketing designed for both conventional search and AI-driven discovery. Its services cover topical authority, AEO, GEO, SEO content, original research, pillar and cluster strategies, thought leadership, and content intended to be suitable for citation by ChatGPT and Perplexity.
The agency is based in Fitzrovia and can be relevant for organisations where the central AI marketing problem is content visibility rather than automation or paid acquisition. Its approach places particular emphasis on building structured subject authority around commercially important topics.
Key Facts
- Best for: Companies building authority through content
- Core services: Content marketing, AEO, GEO, SEO content, thought leadership
- AI platforms: ChatGPT, Perplexity, Google AI
- Location: Fitzrovia, London
- Notable strength: Topical authority and long-form content architecture
Contactgegevens
- Website: strategicedgesolutions.com
- E-mail: [email protected]
- Adres: 60 Tottenham Court Road, Office 1292 Fitzrovia London W1T 2EW
Conclusie
ChatGPT is becoming a real part of how people discover, compare, and research businesses online, so marketing strategies increasingly need to account for more than traditional search results. For companies in London, that can mean improving how clearly their expertise, services, and brand authority are understood by both search engines and AI platforms.
The right approach depends on what is already in place. Some businesses need a focused push around ChatGPT visibility, GEO, or AEO, while others will get more value from connecting AI search with SEO, content, digital PR, paid media, and wider demand generation. Strong technical foundations still matter, but so do credible content, third-party mentions, clear brand signals, and information that AI systems can interpret without guesswork.
ChatGPT marketing is still developing quickly, and the terminology around it will probably keep changing. The practical goal is simpler: make a business easier to understand, trust, find, and reference wherever potential customers are searching for answers.
