
Cybersecurity marketing agency doing content strategy and creation for security vendors, with SEO and AI search optimisation alongside it.
- 4 case studies
- 3 accreditations
- Clients: IBM, PCA Cyber Security
Agencies Offering Source-of-Truth Content
Source-of-truth content is written to be cited by a model as well as read by a person. It carries clear claims, consistent facts, and structure a model can pull from directly. These agencies build it.
Most content on the web is written for a reader who arrives with context. A model pulling facts to answer a prompt has none of that context, so it needs a clear, self-contained claim it can quote or paraphrase with confidence. Source-of-truth content is written with that in mind, usually alongside entity and schema work so the same facts are marked up in a way a model can parse, not just written in prose.
This shows up in practice as rewritten product pages, dedicated FAQ and comparison content, and documentation restructured so a single page answers a single question clearly. The agencies below build this kind of content as part of their GEO work, alongside the other services shown on each profile.

Cybersecurity marketing agency doing content strategy and creation for security vendors, with SEO and AI search optimisation alongside it.
London software company that gets UK hotels, restaurants and other businesses named by ChatGPT, Gemini and Google AI Overviews.

Odense GEO consultancy getting Danish businesses mentioned and recommended in ChatGPT, Gemini and Google AI Overviews.
Dutch agency that measures which brands AI answers name and cite, then publishes and distributes content across 20+ channels to change that.
Hamburg team building B2B websites with structured content, technical SEO and AI-citable answers for ChatGPT and Perplexity, alongside workflow automation.
Productized AI visibility and SEO service working on technical foundations, answer-ready content, entity evidence and earned authority, with measurement published as part of the offer.

Indiana agency measuring and improving how B2B software companies appear in AI answers, starting from a fixed-price category audit across five engines.

GEO agency for B2B SaaS, measuring how often ChatGPT, Perplexity, Gemini, Claude, Copilot and Google AI Overviews name a brand and fixing the layer that keeps it out.
Dutch GEO agency making websites findable, understandable and citable for ChatGPT, Claude, Copilot, Gemini, Perplexity and Google, for businesses in the Netherlands and Belgium.

Spanish AI visibility agency combining GEO and technical SEO for B2B SMEs, measured per engine on a fixed set of buyer questions at day 0 and day 120.
Boutique SEO and AI visibility consultancy helping service-based brands become easier to find, trust and choose.
Gets managed IT, cybersecurity and software firms named in the answers ChatGPT, Perplexity, Gemini and Claude write, and reports the change in share of answer weekly.
Makes building-product manufacturers readable to AI assistants, so their name comes up when contractors ask which product to specify.

Brazilian GEO agency getting B2B brands cited and recommended in ChatGPT, Gemini, Perplexity and other AI answers, led by a 17-year SEO practitioner serving all of Brazil from São Paulo.

German GEO agency working on AI search visibility and AI Overview citations for German-speaking clients, from Ostfildern near Stuttgart.
AI visibility and search positioning for travel businesses, showing whether a travel brand makes the shortlist when travellers ask Google and AI assistants who to book with.

AI division of Dallas IT services firm ITECS, running technical SEO, content architecture and measurement of AI search visibility for local businesses.
Search agency for US manufacturers, distributors and industrial suppliers, working on how engineers and procurement teams find them through Google and AI answer engines.
Generative engine optimization for US law firms only, getting firms named when clients ask ChatGPT, Perplexity, Google's AI answers, Gemini and Claude who to hire.

Answer engine optimization agency working on how brands are cited and recommended across ChatGPT, Claude, Gemini and Perplexity, with prompt mapping, content and weekly tracking.
Korean GEO agency that builds AI-readable websites and content for clinics, professional firms and brands, checks every post against Korean advertising law, and measures AI mentions weekly.

Earned media, original research and technical site work aimed at getting Web3 and fintech brands named inside AI answers.

AI search and brand discoverability agency working on generative engine optimization, entity clarity, AI-ready content and visibility measurement across the major assistants.

German digital agency in Mönchengladbach and Düsseldorf running GEO audits and the technical set-up that makes sites citable in ChatGPT, Perplexity and Google's AI answers.

Managed AEO service for SMBs and growing brands: one team writing, placing and measuring the content that gets a brand named in AI answers.

New Delhi GEO agency that tests real buyer questions in ChatGPT, Gemini and Perplexity, then improves the content, business information and third-party pages those answers rely on.

Cape Town search and performance agency running SEO, AI visibility and paid ads for clients worldwide, with a focus on home service businesses.

Financial services marketing agency running compliance-aware GEO and AEO for brokers, crypto exchanges and other regulated financial brands.

Two-person Bratislava agency preparing small and medium-sized Slovak businesses for ChatGPT, Gemini and Perplexity, with monthly checks of what the assistants recommend.

SEO and AI visibility agency for B2B companies, SaaS and startups, getting brands ranked on Google and recommended by ChatGPT, Perplexity, Claude, Gemini and Google's AI answers.

Polish interactive agency building AI search visibility for B2B manufacturers, with an AI search audit and a GEO suite covering quotable content, structured data and earned mentions.

GEO-native agency that gets brands cited and recommended inside AI answers, measured per engine every 30 days on a locked prompt set.
Done-for-you answer engine optimization for B2B companies, measured on a fixed question set across five engines and re-measured on a set cadence.

Doctor-led AI visibility agency helping private medical and dental practices get named when patients ask ChatGPT, Gemini and Google's AI answers which clinic to choose.
Employee-owned search agency in Sheffield and Leeds with more than 80 specialists, running GEO and AEO as named services alongside SEO, digital PR, content and paid search.

B2B GEO agency that audits how AI systems describe a brand to buyers, then closes the gaps across its own content, third-party sources and positioning.
Ohio firm measuring sampled AI answers for independent businesses and fixing the pages and profiles that explain them, from a $750 audit.

Helps brands win visibility, authority, citations and recommendations across AI answer engines in the United States, United Kingdom and Europe.
Normal content marketing is written to engage a reader over several paragraphs. Source-of-truth content is written so a specific fact or claim can be lifted cleanly by a model, which usually means shorter, more direct, and more structured than a typical blog post.
Not usually. Most agencies treat it as an addition. Existing SEO content stays for human readers and rankings, while source-of-truth pages are added or rewritten for how models retrieve facts.
Agencies in the directory whose own site names this kind of content work as a service.
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