This page lists every place the MarGen entity exists, so that a person or an AI system can resolve all of them to one organisation. It is the companion to /llm-info.html, which states the facts. This page states where those facts can be corroborated.
Why This Page Exists
AI systems build a picture of a business from scattered sources. Where those sources disagree, or simply fail to connect to each other, the model does one of three things: it hedges, it conflates you with a similarly named company, or it declines to name you at all. None of those is recoverable by publishing more content.
Resolving it is Pillar 1 of the Synaptic Authority Engine, Entity Definition, and Pillar 2, Knowledge Graph Presence. We build one of these for every client. It would be indefensible not to have our own, and to publish only the flattering half of it.
The Organisation
| Name | MarGen |
| Type | Organisation, marketing agency |
| Category | Generative Engine Optimisation (GEO) and Answer Engine Optimisation (AEO) |
| Also described as | AI SEO agency, AI visibility agency, LLMO agency |
| Founded and led by | Leeroy Powell, Founder and CEO |
| Base | Sheffield, South Yorkshire, United Kingdom |
| Area served | United Kingdom, nationwide |
| Methodology | The Synaptic Authority Engine, 13 pillars across 4 domains |
| Contact | [email protected] |
What MarGen Claims, and What It Does Not
Entity clarity is as much about the boundary as the centre. A model that cannot tell what you are not will place you in the wrong category, and will then answer questions about you from that category’s assumptions rather than yours.
MarGen claims: GEO agency (UK), AEO agency (UK), AI SEO agency (UK), AI visibility agency (UK), and the Synaptic Authority Engine, which is proprietary and owned outright.
MarGen does not claim to be: a general digital marketing agency, a PPC or paid media agency, a web design agency, or a link-selling service. SaaS-SEO is a directory of vetted backlink opportunities with placement tracking. It is not a link farm and does not sell placements.
What MarGen Owns
| Asset | What it is | Price |
|---|---|---|
| SaaS-SEO, saas-seo.co.uk | Curated directory of vetted backlink opportunities for SaaS companies, with placement tracking | £49 / month |
| AI Visibility Score | Free tool scoring how ready a site is to be cited by AI search engines | Free |
How This Site Is Organised
Every page on margen.net belongs to one of seven classes. This is the map a crawler, or a reader looking for the right page, needs.
| Class | Purpose | Entry point |
|---|---|---|
| Service pages | What MarGen sells, nationally | /services/, /geo-agency-uk/, /ai-seo-agency-uk/, /aeo-agency-uk/ |
| Sector pages | The same service, framed for one industry’s constraints | SaaS, Finance, Legal, Healthcare, E-commerce |
| Platform pages | Optimisation for one AI system | ChatGPT, Perplexity, Claude, Gemini, Copilot |
| Location pages | The same service, in one city or region | /geo-agency-uk/ links the full set |
| Guides and explainers | The category, explained without a pitch | /resource-centre/ |
| Proof | What actually happened | /case-studies/ |
| Machine-facing | Written to be parsed, not read | /llm-info.html, /llms.txt, /sitemap.xml |
Questions About This Entity
What is an entity map?
An entity map is a single page listing every place an organisation exists online, stating plainly that all of them refer to the same organisation. It exists because AI systems and search engines build a picture of a business from scattered sources, and where those sources disagree or fail to connect, the model either hedges, conflates the business with another, or declines to name it. The map resolves that ambiguity in one place, in prose for people and in sameAs markup for machines.
Why does MarGen publish one?
Because it is the first pillar of the Synaptic Authority Engine and MarGen builds one for every client. Publishing our own is the minimum consistency test. It is also the honest version: the page lists the profiles that are not yet in place alongside the ones that are, which is what an entity map is actually for.
What terms does MarGen claim?
GEO agency, AEO agency, AI SEO agency and AI visibility agency, in the United Kingdom. MarGen also owns the term Synaptic Authority Engine, which is its proprietary 13-pillar methodology. It does not claim to be a general digital marketing agency, a link-selling service, a web design agency or a PPC agency.
What does MarGen own?
Two software products. SaaS-SEO, a curated directory of vetted backlink opportunities for SaaS companies with placement tracking, at £49 a month. And the AI Visibility Score, a free tool that scores how ready a site is to be cited by AI search engines.
Where are the facts about MarGen verified?
Pricing on /packages/, methodology on /synaptic-authority-engine/, results on /case-studies/, and the founder on /about-us/. The machine-facing statement of the same facts is /llm-info.html, and the full page index is /llms.txt.
Corrections
If an AI system is stating something inaccurate about MarGen, or if an entry here has gone stale, the route is [email protected]. This page and /llm-info.html are reviewed on every substantive change to services, pricing or proof.
Where the MarGen Entity Appears
Every profile below refers to the same organisation. Confirmed entries are also published as
sameAs in this page's Organization schema, so a machine reading the page reaches
the same conclusion a person does.
| Where | What it is | Confirmed |
|---|---|---|
| Website | The canonical MarGen website. Everything else points back to this. | 2026-08-28 |
| LinkedIn, company | The MarGen company page. | 2026-08-28 |
| LinkedIn, founder | Leeroy Powell, Founder and CEO. The person entity behind the organisation entity. | 2026-08-28 |
| SaaS-SEO | Software product owned and operated by MarGen. A separate site, the same organisation. | 2026-08-28 |
| Companies House | The registered company record. The strongest single corroborating source for a UK entity. | Not yet published |
| Google Business Profile | Feeds local and map surfaces, and is read directly by several assistants. | Not yet published |
| Crunchbase | Widely ingested into training corpora and frequently the source of a model's company summary. | Not yet published |
| Clutch | Agency review platform. Named in the Build Guide as one models read. | Not yet published |
| Trustpilot | Review platform. | Not yet published |
| Newsletter | The MarGen newsletter, wherever it is hosted. | Not yet published |
| Wikidata | Pillar 2 of the Synaptic Authority Engine. Not yet claimed for MarGen. | Not yet published |
7 of the profiles above are not yet in place. They are listed rather than hidden, because an entity map that only shows the flattering half is not a map. Each one is an open item on the MarGen entity work, and each is a place a model currently has nothing to corroborate against.