MarGen is a UK ChatGPT SEO agency that engineers the entity authority and content structure that makes ChatGPT cite and recommend your business. We work with B2B brands across regulated and high-value sectors — legal, accountancy, financial services, healthcare and construction — using our proprietary Synaptic Authority Engine methodology to turn AI search into a measurable pipeline channel.
Why ChatGPT SEO Now Matters More Than Google SEO
ChatGPT has over 200 million weekly active users and is now the default research tool for a growing share of UK B2B buyers. When a finance director, head of legal or procurement lead asks “best [your service] firm in the UK”, ChatGPT delivers a single, confident, conversational answer — and that answer either contains your brand or it does not. There is no second page. There is no scroll. If you are not cited, you do not exist.
Traditional SEO buys you ten blue links on Google. ChatGPT SEO buys you the only answer in the room.
How ChatGPT Retrieves and Cites Your Business
ChatGPT operates across two distinct retrieval surfaces, and a serious agency optimises for both:
- Training-data answers — based on the corpus of text used to train each model. Citations here come from being mentioned, linked and discussed across high-authority web sources before the training cutoff.
- Live retrieval (SearchGPT and browsing) — when ChatGPT queries the live web, it favours sources with strong entity clarity, structured data, recent updates and authoritative third-party mentions.
The Synaptic Authority Engine treats these as two related but separate optimisation surfaces. We do not just publish content and hope — we engineer the precise signals each retrieval mode rewards.
What MarGen Actually Does for ChatGPT SEO
Entity Mapping and Disambiguation
ChatGPT cites entities, not pages. We map your brand, founders, products and services as a connected entity graph that AI models can recognise unambiguously. This includes structured data, Wikipedia/Wikidata presence where merited, knowledge-panel optimisation, and authoritative bio coverage.
Citation-Intent Content Engineering
We audit the queries your buyers actually ask ChatGPT, identify which currently cite you (and which cite competitors), then engineer content specifically structured to be extractable and citation-worthy: direct-answer first paragraphs, comparison tables, FAQs with FAQPage schema, and statistics with verifiable sources.
Third-Party Authority Placement
Roughly 60-70% of ChatGPT’s confidence in a brand comes from sources you do not control. We engineer placements across industry directories, trade publications, regulatory databases, podcast features and authoritative roundups — the third-party signals that make ChatGPT confident enough to recommend you.
Continuous Monitoring and Iteration
GEO is not set-and-forget. We run weekly citation tracking across your priority queries, alert you when competitors gain ground, and adjust the strategy based on observed model behaviour. Models change. Your strategy adapts.
Service Tiers
| Tier | Best For | Includes | Investment |
|---|---|---|---|
| Foundation | Single-platform focus, smaller B2B firms | ChatGPT-only optimisation, monthly citation tracking, 4 content assets/month, entity baseline | From £3,500/month |
| Authority | Mid-market B2B, multi-platform visibility | ChatGPT + Perplexity + AI Overviews, weekly tracking, 8 assets/month, third-party placement | From £5,500/month |
| Synaptic | Enterprise, regulated sectors | All AI platforms, real-time tracking dashboard, 12+ assets/month, full Authority Engine deployment, dedicated strategist | From £8,000/month |
Every engagement begins with a free AI Visibility Audit so you can see your starting position before you commit a penny.
Why MarGen Specifically
MarGen is led by Leeroy Powell from Sheffield, UK, and we built the Synaptic Authority Engine specifically for the UK market. We understand UK regulators, UK trade press, UK procurement language and the specific entity disambiguation challenges UK firms face (a hundred “Smith & Co” practices need different treatment to a single global brand).
We do not bolt GEO onto a traditional SEO retainer. We do not run “AI SEO” as a side feature. ChatGPT SEO and the broader GEO discipline is the entire reason MarGen exists.
What Happens Next
If you are a UK B2B firm losing pipeline to invisible competitors who somehow keep getting cited by ChatGPT, the first step is simple: book a free AI Visibility Audit. We will run your priority queries across ChatGPT and the major AI surfaces, show you exactly where you stand against your competitors, and give you a defensible plan — whether you work with us afterwards or not.
If you are ready to talk about a structured engagement, contact the team directly and we will have a Sheffield strategist on a call within 48 hours.
Frequently Asked Questions
What is ChatGPT SEO and how is it different from traditional SEO?
ChatGPT SEO (a form of GEO, or Generative Engine Optimisation) is the discipline of engineering your content, entity signals and third-party authority so ChatGPT cites and recommends your brand inside its answers. Traditional SEO targets ten blue links on Google; ChatGPT SEO targets zero-link conversational answers. The signals overlap, but the techniques are different — entity disambiguation, citation-worthiness, and consensus across the web matter far more than keyword density.
How does MarGen actually get my brand into ChatGPT?
We use the Synaptic Authority Engine — our proprietary methodology covering entity mapping, citation-intent content engineering, third-party authority placement, and continuous monitoring. We map the queries your buyers ask, audit how ChatGPT currently answers them, identify the citation gaps, then engineer the missing authority signals across your owned site and the third-party sources ChatGPT trusts.
How long does it take to get cited by ChatGPT?
Most clients see initial citations within 60-90 days for lower-competition queries, and 4-6 months for high-value commercial queries in regulated sectors. ChatGPT’s training data refresh and live retrieval (via SearchGPT) operate on different timelines — we optimise for both surfaces simultaneously.
Do you only work with UK businesses?
MarGen is Sheffield-based and most of our clients are UK B2B brands in regulated and high-value sectors — legal, accountancy, financial services, healthcare, construction. We also work with international brands targeting the UK market.
How do you measure ChatGPT SEO results?
We track citation share, share-of-voice across query sets, branded-vs-unbranded mention rates, referral traffic from chat.openai.com, and downstream pipeline impact. You receive a monthly citation report showing exactly which queries cite you, which cite competitors, and where the gaps remain.
What does ChatGPT SEO cost?
Engagements typically start from £3,500/month for focused single-platform work and scale to £8,000+/month for multi-platform GEO programmes covering ChatGPT, Perplexity, Google AI Overviews, Claude and Copilot. Every engagement starts with a free AI Visibility Audit so you see exactly where you stand before you commit.
Ready to find out where you stand inside ChatGPT? Get your free AI Visibility Audit or contact MarGen to talk to a Sheffield strategist.