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Head-to-head · Knowledge Graph Software

Stardog vs PoolParty Semantic Suite

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Stardog #5 in Knowledge Graph Software 8.8/10 Free plan Free plan✓ 0 of 4 features Visit Stardog
PoolParty Semantic Suite #7 in Knowledge Graph Software 8.3/10 Pricing on request ✓ 4 of 4 features Visit PoolParty

Stardog leads on 0 checks, PoolParty Semantic Suite on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreStardog · 8.8/10
  • Free planonly Stardog
  • Most featuresPoolParty Semantic Suite · 4 of 4

Stardog scores higher on our rubric for knowledge graph software: 8.8 against 8.3 out of 10; our editors rank them #5 and #7.

Stardog is the better fit for federated knowledge graphs across enterprise data. PoolParty Semantic Suite is the better fit for enterprise taxonomies, search, and semantic enrichment.

  • Stardog fits best

    Federated knowledge graphs across enterprise data

  • PoolParty Semantic Suite fits best

    Enterprise taxonomies, search, and semantic enrichment

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Stardog 8.8/10 Visit ↗ PoolParty Semantic Suite 8.3/10 Visit ↗
At a glance
Editor score 8.8 8.3
Ranking #5 in Knowledge Graph Software #7 in Knowledge Graph Software
Best for Federated knowledge graphs across enterprise data Enterprise taxonomies, search, and semantic enrichment
Pricing model Free plan + paid Paid
Starting price — Pricing on request
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Support Community, Docs · 24/7 Docs
Compliance SOC 2 ISO 27001, GDPR
Integrations 20 integrations 19 integrations
Built for Mid-market, Enterprise Mid-market, Enterprise
Features Stardog 0/4 · PoolParty Semantic Suite 4/4
Ontology modeling Not checked yet ✓ (best)
Semantic reasoning Not checked yet ✓ (best)
RDF/SPARQL support Not checked yet ✓ (best)
Graph visualization Not checked yet ✓ (best)
Specs
Import formats Not checked yet CSV, Excel, JSON, XML, relational tables, PDF, text
Deployment Not checked yet Both
Query languages Not checked yet SPARQL
Our review
Pros
  • Queries remote data through virtual graphs without necessarily moving it
  • Supports SPARQL, SQL, GraphQL, REST, inference, and ontology management
  • Offers both managed cloud and self-managed enterprise deployment
  • Combines taxonomy, thesaurus, ontology, and custom-scheme management
  • Supports RDF storage, SPARQL querying, extraction, classification, and search
  • Offers cloud and on-premise deployment with extensive integrations
Cons
  • The Free plan is limited to 1 million stored edges
  • Enterprise pricing requires contacting sales
  • It is proprietary rather than open source
  • Pricing requires contacting sales
  • Its breadth may exceed the needs of narrow graph projects
  • Not open source
Our verdict

Stardog is a knowledge-graph and semantic AI platform for enterprises that need to connect and query distributed data. Its virtual graphs and connectors work with relational, NoSQL, file, cloud, and SPARQL sources, while SPARQL, SQL-based…

Read the review →

PoolParty Semantic Suite is a semantic middleware platform for organizations that need to model, manage, enrich, and connect enterprise knowledge. It is suited to enterprise data, content, and knowledge-management teams working with…

Read the review →
  1. StardogKnowledge Graph Software 8.8Free plan
  2. PoolParty Semantic SuiteKnowledge Graph Software 8.3Pricing on request

Strengths and trade-offs

  • Stardog — where it wins

    • Queries remote data through virtual graphs without necessarily moving it
    • Supports SPARQL, SQL, GraphQL, REST, inference, and ontology management
    • Offers both managed cloud and self-managed enterprise deployment

    Where it doesn't

    • The Free plan is limited to 1 million stored edges
    • Enterprise pricing requires contacting sales
    • It is proprietary rather than open source

  • PoolParty Semantic Suite — where it wins

    • Combines taxonomy, thesaurus, ontology, and custom-scheme management
    • Supports RDF storage, SPARQL querying, extraction, classification, and search
    • Offers cloud and on-premise deployment with extensive integrations

    Where it doesn't

    • Pricing requires contacting sales
    • Its breadth may exceed the needs of narrow graph projects
    • Not open source
  • Stardog8.8/10 · Free plan

    A flexible choice for federating enterprise data across cloud, databases, and APIs.

    Visit StardogFull verdict →
  • PoolParty Semantic Suite8.3/10 · Pricing on request

    A wide-ranging semantic platform for enterprise search, enrichment, and knowledge management.

    Visit PoolPartyFull verdict →

More comparisons

All knowledge graph software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update