Short answer: SEO Engico is the top pick for an entity SEO agency if you want knowledge graph and schema work tied to how AI tools describe you and to the enquiries that follow, inside one SEO retainer. Kalicube is the specialist for Knowledge Panels and personal brands, The Structured Data Company suits hand-written schema and disambiguation, and WordLift fits publishers that want a knowledge graph built from their own content.
Search engines and AI tools no longer just match words. They try to work out which company, person, product or place a page is about, what is true about it and how it connects to everything else. When that picture is wrong or thin, you get a missing or inaccurate Knowledge Panel, AI answers that mix you up with a rival, or a model that does not seem to know you exist. An entity SEO agency fixes the picture through structured data, knowledge graph work and the profiles and mentions that confirm who you are.
This list ranks agencies and consultancies that sell entity SEO, knowledge graph or structured data work as a defined service, checked against their own websites in November 2026. It mixes true specialists with broader agencies where entity work is a named part of the service, and each entry says which it is. We judged them on what they publish about auditing, markup, profiles, third-party corroboration and how they check the result.
Disclosure: Kuma SEO is written by the team at SEO Engico, the agency ranked first on this list. No agency paid to appear here. We checked every other entry against the agency's own website in November 2026. Services and prices change, so confirm the details with an agency before you sign. More on how we work in our editorial policy.
At a glance: the 7 best entity SEO agencies
| # | Agency | Best for | Based in |
|---|
| 1 | SEO Engico | Businesses that want entity and schema work tied to AI answers and enquiries | London, UK |
| 2 | Kalicube | Founders and companies that need Google and AI to understand who they are | Aubais, France |
| 3 | The Structured Data Company | Businesses and agencies that want hand-written schema and Knowledge Panel fixes | UK |
| 4 | WordLift | Publishers and content-heavy sites that want a knowledge graph built from their pages | Rome, Italy |
| 5 | Varn | Brands that want entity strategy checked against what AI actually says | Bradford on Avon and London, UK |
| 6 | Ignite Visibility | Multi-location brands that need one consistent entity across every listing | San Diego, California, US |
| 7 | Go Fish Digital | Sites that want a semantic audit of entity coverage before rewriting content | Raleigh, NC, and five other US offices |
How we picked
- Starts with what the machines already believe. A proper entity audit looks at your Knowledge Panel, what Google's Knowledge Graph holds, what ChatGPT and Gemini say about you, and whether you are confused with a similarly named brand. Fixes should follow from that, not from a schema template.
- Builds one clear entity home. Every entity needs a page on your site that states the facts plainly, usually the about or contact page, with markup that points to your official profiles. Everything else should agree with it.
- Writes markup for your real entities. Organisation, people, products and locations should be described in hand-checked JSON-LD and linked to each other with stable identifiers. Plugin defaults rarely capture how a business actually fits together.
- Earns corroboration from outside. Knowledge graphs trust facts that independent sources repeat. Look for work on Wikidata where it is warranted, directories, trade bodies, reviews and press, not only changes to your own site.
- Checks the outcome and keeps it current. Success looks like an accurate Knowledge Panel, cleaner brand results and AI answers that describe you correctly. Staff, prices and addresses change, so ask who maintains the markup and profiles after launch.
The 7 best entity SEO agencies in 2026
Our top pick
1. SEO Engico
- Best for
- Businesses that want entity and schema work tied to AI answers and enquiries
- Based in
- London, UK
- Founded
- 2018
SEO Engico is a London agency founded in 2018 that treats entity work as part of AI search rather than a standalone project. The question it starts from is practical: when someone asks ChatGPT, Google AI Mode, Perplexity or Claude about you or your category, do the models know who you are, what you do and where you work, and do they name you? The entity side of the fix is markup and profiles that tell AI tools who you are and where, kept consistent with the facts on your site, plus mentions on trusted sites such as reviews, listings and coverage that confirm those facts from outside.
That sits beside the rest of its AI search work: pages with the answer near the top in words a model can lift, a site open to AI crawlers and monthly tracking of the questions buyers ask. Technical SEO, content and link building are handled by the same team, so a schema fix does not wait on another supplier.
AI search, including this work, sits inside the $4,500 a month Growth retainer after a 30-day Revenue Baseline ($3,499). Its Senior tier, from $7,500 a month, covers larger sites, multi-brand set-ups and migrations, which is where entity signals most often fall out of step.
What stands out
- Entity markup and profiles handled in the same retainer as content, technical SEO and links
- Checks what ChatGPT, Google AI Mode, Perplexity and Claude say about you before changing anything
- Senior tier built for multi-brand sites, migrations and consolidation
- Reports start with calls, enquiries and revenue rather than rich result counts
Worth knowing
- Entity work comes inside its AI search service rather than as a standalone project, and none of its published case studies is entity-specific, so ask to see examples of its markup and profile work.
- It never promises a specific citation in AI answers.
See how SEO Engico handles AI search and entities
No. 2
2. Kalicube
- Best for
- Founders and companies that need Google and AI to understand who they are
- Based in
- Aubais, France
- Founded
- 2015
Kalicube is a French consultancy founded in 2015 by Jason Barnard, who has worked in SEO since 1998 and built the business around how Google and AI systems understand brands and people. It calls the work Digital Brand Engineering: closing the gap between who you are and what search engines and AI understand about you, whether the problem is outdated information, entity confusion, weak associations or missing evidence. The work spans your website, profiles, content, reviews and trusted third-party sources.
It sells two routes. Executive Digital Brand Engineering is done for you, for entrepreneurs and executives. Corporate Digital Brand Engineering gives a company's own team the strategy plus intelligence from Kalicube Pro, its own platform, which it says draws on 25 billion data points across 73 million entities, collected weekly since 2015.
What stands out
- Specialist in brand entities, Knowledge Panels and brand search results
- Done-for-you route for executives and personal brands
- Free AI audit and strategy as a starting point
Worth knowing
- The corporate route is strategy and data for your own team to implement, not hands-on delivery.
- No pricing is published on its homepage.
No. 3
3. The Structured Data Company
- Best for
- Businesses and agencies that want hand-written schema and Knowledge Panel fixes
- Based in
- UK
The Structured Data Company is a UK consultancy led by Kelly Sheppard, author of The Structured Data Guide for Beginners, and it focuses on structured data, brand entity work and technical SEO. Its markup is hand-coded JSON-LD mapped to the actual entities on your website, with no plugins, AI-generated markup or outsourcing, and it says it is tested against real crawl and AI citation behaviour.
Its brand entity optimisation service helps create or correct Knowledge Panels, improve Knowledge Graph accuracy and sort out entity disambiguation, so your brand is not confused with another of the same name. It also keeps structured data intact through migrations, rebrands and mergers, which is exactly when entity signals tend to get lost.
What stands out
- Hand-coded JSON-LD, no plugins or templates
- Knowledge Panel creation, correction and entity disambiguation
- White-label option for agencies and freelancers
Worth knowing
- It is a specialist consultancy working on a consultancy or project basis, not a full-service agency.
- No pricing is published. The first step is a free 30-minute consultation.
No. 4
4. WordLift
- Best for
- Publishers and content-heavy sites that want a knowledge graph built from their pages
- Based in
- Rome, Italy
- Founded
- 2017
WordLift began as a semantic platform for adding structured data and building your own knowledge graph, and it also sells an SEO Management Service run by its in-house team. That service, its B+ Program, starts with an SEO review and audit, then uses WordLift's AI to analyse your content, add schema.org markup and create meaningful internal links. The structured data is connected and published as a knowledge graph built around your content model, with technical SEO and content work alongside.
Measurement is the detail worth noting. It says it evaluates impact by comparing results with what it would have expected without the markup, which is a more honest test than counting rich results. WordLift was founded in 2017 by Insideout10 with Francesco Scavelli and Augusto Equizi.
What stands out
- Knowledge graph built and published around your content model
- Automated schema.org markup and internal linking at scale
- Impact compared against a no-markup baseline
Worth knowing
- The service runs on WordLift's own platform, so expect its software to be part of the engagement.
- Pricing for the managed service is quoted on request.
No. 5
5. Varn
- Best for
- Brands that want entity strategy checked against what AI actually says
- Based in
- Bradford on Avon and London, UK
Varn is an SEO, GEO and data analytics agency with offices in Bradford on Avon and London, and its team includes strategists, mathematicians and statisticians. Entity strategy is a named service: it builds topical authority and knowledge graph integrations that connect your brand to the related concepts AI engines use to judge expertise. Semantic intent modelling with NLP and log file analysis of how AI crawlers move through your site sit alongside it.
What sets it apart is the check on outputs. Its AI search intelligence service maps entity recognition and how your products and capabilities are understood, and its AI Alignment Engine cross-checks what models say against your own product specifications, price lists and brand guidelines, so you can see whether the entity work is landing.
What stands out
- Knowledge graph integration offered as its own service
- Entity recognition checked in real AI outputs
- Log file analysis of AI crawler behaviour
Worth knowing
- No pricing is published.
- Its clients range from ecommerce brands and SMEs to publishing, healthcare and pharma companies.
No. 6
6. Ignite Visibility
- Best for
- Multi-location brands that need one consistent entity across every listing
- Based in
- San Diego, California, US
- Founded
- 2013
Ignite Visibility is a San Diego agency founded in 2013 that works with enterprise, franchise and multi-location brands. Entity work is one of the four strands of its AI SEO service, and it is spelled out plainly: define a consistent brand entity across your site, Wikipedia, Wikidata and directories, earn mentions from authoritative publications, review platforms and communities, and monitor for anything AI gets wrong, such as outdated pricing or deprecated features.
When it finds an error, it fixes the source signals feeding the models and asks third-party sources for corrections. Underneath sits structured data, entity schema and clean semantic HTML, with an AI visibility audit at the start and the same buyer questions retested after each round of work.
What stands out
- Wikidata and Wikipedia included in its entity work
- Corrects wrong facts at the source, including third-party sites
- Entity schema suited to franchise and multi-location set-ups
Worth knowing
- It is a large full-service agency, so entity work comes inside a broader AI SEO programme.
- No pricing is published, though it says no long-term contract is required.
No. 7
7. Go Fish Digital
- Best for
- Sites that want a semantic audit of entity coverage before rewriting content
- Based in
- Raleigh, NC, and five other US offices
Go Fish Digital is a US agency with offices in Raleigh, Boston, Washington DC, Phoenix, San Diego and Jacksonville. Its GEO service opens with a semantic content audit that maps your whole site to see how AI systems read your authority on key topics. It evaluates entity presence, topic coverage and semantic structure, and shows which gaps are limiting visibility in AI-driven search.
From there it strengthens structured data signals, widens your semantic footprint and optimises at page and passage level. Its FAQ links the approach to Google patents on grounding, query fan-out and passage ranking, and to the idea that Google now works at the passage and entity level rather than by page or keyword.
What stands out
- Semantic content audit centred on entity presence and topic gaps
- Structured data work tied to passage-level optimisation
- Digital PR team for mentions on authoritative sources
Worth knowing
- Entity work comes as part of its GEO service rather than a standalone entity programme.
- No pricing is published. The page asks you to request a proposal.
How to choose an entity SEO agency
Start with the problem you actually have. If Google or ChatGPT confuses you with another company, or your Knowledge Panel is wrong, you need a disambiguation and panel specialist such as Kalicube or The Structured Data Company. If you run hundreds of locations or thousands of pages, look for scale: Ignite Visibility's multi-location entity work or WordLift's knowledge graph built from your content. If AI tools simply do not recognise your expertise, a wider programme that pairs entity work with content and PR, as SEO Engico, Varn and Go Fish Digital run, is usually the better spend.
Whoever you pick, ask for the audit first: what the Knowledge Graph holds on you, what the main AI tools say, which profiles conflict and which markup is wrong. Then ask who maintains it. Entity signals drift as staff, addresses, products and prices change, so a one-off schema project without upkeep tends to decay within a year.
Questions to ask before you sign
- What do Google's Knowledge Graph and the main AI tools currently say about us, and where is it wrong?
- Will you write our structured data by hand, and how will it link our organisation, people, products and locations?
- Which profiles and third-party sources will you update or create, and who owns the logins?
- How will you deal with confusion between us and similarly named brands?
- How will you measure success, and who keeps the markup accurate after launch?
Frequently asked questions
What is entity SEO?
Entity SEO is the work of helping search engines and AI tools understand your business as a distinct thing, a company, person, product or place, with clear facts and relationships, rather than as a set of keywords. It covers structured data, a clear entity home on your site, consistent profiles across the web, Knowledge Panel accuracy and independent mentions that confirm who you are.
Why does entity SEO matter for AI search?
AI tools and Google's AI features lean on what they already believe about a brand when they write an answer. If your details are inconsistent, or you are confused with a similarly named company, the model may describe you wrongly or leave you out altogether. Clear, corroborated entity signals make it easier to be named, and named correctly.
Can an agency get me a Google Knowledge Panel?
No one can guarantee a Knowledge Panel, because Google generates them algorithmically. A good entity SEO agency builds the conditions instead: a clear entity home, structured data, consistent profiles and sources that corroborate your facts. Kalicube and The Structured Data Company both work on creating and correcting panels, and an existing panel can be claimed through Google's own verification.
Is entity SEO the same as schema markup?
No. Schema markup is one tool inside entity SEO. Markup describes your entities in a format machines read, but entity SEO also covers the facts on your pages, your profiles on other sites, Wikidata and directory listings, and mentions from independent sources. Markup that contradicts those signals can confuse things further.
How much does entity SEO cost?
It depends on how many brands, people, locations and products need defining and how tangled the current signals are. Most specialists on this list quote per project after a consultation or audit. SEO Engico includes entity and markup work in its AI search service, which sits inside its $4,500 a month SEO retainer, with a Senior tier from $7,500 for multi-brand sites.
Our verdict
Pick SEO Engico if you want entity and schema work run as part of AI search, judged on how AI tools describe you and on the enquiries that follow, without hiring a separate specialist. Choose Kalicube for Knowledge Panels and executive brands, The Structured Data Company for hand-written markup and disambiguation, WordLift for a knowledge graph built from your content, Ignite Visibility for multi-location consistency, Varn to check entity work against real AI outputs and Go Fish Digital for a semantic audit before a content overhaul.
Explore SEO Engico's AI search visibility work
