Knowledge graph platforms: AI search visibility ranking (2026)
How AI search engines rank knowledge graph platforms by visibility and citations. 18 brands measured monthly across Google AI Mode: which brands the AI names in answers, which domains it cites as sources, and how the leaders compare. Knowledge graph platforms used to connect entities, enrich semantics, and power search, recommendation, AI grounding, and data discovery workflows. Composite score: 70% visibility (% of AI answers naming the brand) + 30% citation rate (% citing the brand's domain). Full methodology →
Refreshed Jun 19, 2026Download this ranking as a PDF
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At a glance
What we observed in this categoryauto-generated
Stardog and Neo4j share the top two positions in this category, each posting identical visibility and citation scores of 12.5 percent against a category average of just 1.4 percent. That gap is significant: the two leading brands are roughly nine times more visible than the average across all 18 tracked brands. Every other ranked brand from position three downward holds a composite score of zero, meaning the AI visibility landscape here is effectively a two-brand conversation with a long tail of complete silence.
An important pattern in this data is that visibility and citation move in lockstep for both Stardog and Neo4j, each scoring 12.5 percent on both metrics. This means neither brand is named without also being cited, and neither is cited without being named. Brands like Ontotext, Graphwise, PoolParty, Diffbot, and AllegroGraph, despite being established names in the knowledge graph space, register zero on both dimensions, so they are neither mentioned nor trusted as sources by Google AI Mode.
Google AI Mode is the top engine for every brand in the dataset, which reflects the audit scope rather than competitive engine variation. Among the top cited sources in the category, neo4j.com appears directly alongside third-party domains such as reddit.com, youtube.com, atlan.com, and digetiers-dap.com. This suggests AI responses anchor heavily on community and comparison content rather than vendor sites, with neo4j.com being the sole brand domain to break into that cited-source list.
Movers & shakers since last refresh
Biggest visibility risers
-
Stardog 0% → 12% · rank #0 → #1+12pp
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Neo4j 0% → 12% · rank #0 → #2+12pp
The ranking
| # | Brand | Visibility | Citation | Top engine |
|---|---|---|---|---|
| 1 |
stardog.com
|
12% | 12% | Google AI Mode |
Stardog leads at 12.5 percent visibility and citation, up from zero in the prior period, placing it nine times above the 1.4 percent category average with no gap between named and cited rates. |
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| 2 |
neo4j.com
|
12% | 12% | Google AI Mode |
Neo4j matches Stardog exactly at 12.5 percent on both visibility and citation, and is the only brand in this category whose domain also appears in the top cited sources list. |
||||
| 3 |
ontotext.com
|
0% | 0% | Google AI Mode |
Ontotext holds rank three by classification but scores zero on visibility, citation, and composite score, meaning it receives no measurable presence in Google AI Mode responses for this category. |
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| 4 |
graphwise.ai
|
0% | 0% | Google AI Mode |
Graphwise sits at rank four with a composite score of zero, identical to twelve other brands in this dataset, reflecting a category where AI visibility is almost entirely concentrated in two brands. |
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| 5 |
poolparty.biz
|
0% | 0% | Google AI Mode |
PoolParty registers zero across all three scored metrics, mirroring ranks three through ten and confirming that no third brand has broken into measurable AI visibility in this category yet. |
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| 6 |
senzing.com
|
0% | 0% | Google AI Mode |
| 7 |
diffbot.com
|
0% | 0% | Google AI Mode |
| 8 |
data.world
|
0% | 0% | Google AI Mode |
| 9 |
relational.ai
|
0% | 0% | Google AI Mode |
| 10 |
franz.com
|
0% | 0% | Google AI Mode |
| 11 |
cambridgesemantics.com
|
0% | 0% | Google AI Mode |
| 12 |
tigergraph.com
|
0% | 0% | Google AI Mode |
| 13 |
memgraph.com
|
0% | 0% | Google AI Mode |
| 14 |
arangodb.com
|
0% | 0% | Google AI Mode |
| 15 |
aws.amazon.com
|
0% | 0% | Google AI Mode |
| 16 |
marklogic.com
|
0% | 0% | Google AI Mode |
| 17 |
topquadrant.com
|
0% | 0% | Google AI Mode |
| 18 |
metaphacts.com
|
0% | 0% | Google AI Mode |
Sources AI engines trust in this category
Across the 8 buyer-intent queries we ran on knowledge graph platforms, these are the domains Google AI Mode cited most often. If you're not on this list — or if your competitors are — that's a concrete PR / linkbuilding target.
How to read this ranking
Four things worth knowing before you act on the numbers above. These are the same definitions across every industry page — for category-specific observations, see the What we observed section above (where available) and the per-brand insights inline in the ranking.
Visibility = being named
A brand's visibility % is the share of AI answers that mention it by name in the response prose. This is who AI engines actively recommend to the buyer.
Citation rate = being trusted
Citation rate is the share of AI answers that include the brand's domain as a clickable source link. This is what the AI treats as authoritative evidence — different from being named.
Top engine differs by brand
The "top engine" column shows which AI surface each brand performs best on. Big gaps between a brand's score across engines usually points to specific content or schema gaps.
Rankings move month to month
AI engines re-crawl and re-rank on shorter cycles than classical search. We re-audit every brand on this list at least every 30 days and refresh this page automatically.
Get your own knowledge graph platforms brand audited
The brands above were curated from public market-leader lists. Want the same measurement against your own brand — including the queries you appear on, which competitors get named instead, and a prioritised fix list? Run a free preview.
Frequently asked about knowledge graph platforms AI visibility
Who leads AI visibility in the knowledge graph platforms category?
Stardog and Neo4j share the top position, each with 12.5 percent visibility and citation scores. Every other tracked brand in the category currently scores zero on both metrics.
How concentrated is AI visibility in this category?
Visibility is highly concentrated, with only 2 of 18 brands holding any measurable score, and both sit at 12.5 percent against a category average of just 1.4 percent.
What sources does Google AI Mode cite most for knowledge graph platform research?
The top cited sources include digetiers-dap.com, reddit.com, youtube.com, atlan.com, and neo4j.com, showing a mix of community, comparison, and one vendor domain driving AI citations.
Is there any brand in this category that is named by AI but not cited, or cited but not named?
No, the data shows perfect alignment between visibility and citation for all brands. Stardog and Neo4j both score 12.5 percent on each metric, and all others score zero on both.
Which brands have seen the biggest recent change in AI visibility for this category?
Stardog and Neo4j are the only visibility risers in the dataset, both moving from zero to 12.5 percent, with no brands recorded as visibility fallers in the same period.
Does brand recognition in the knowledge graph space translate into AI citation?
Not consistently. Established names like Ontotext, Diffbot, AllegroGraph, and PoolParty all score zero in AI visibility and citation despite being active vendors in the category.